Showing posts with label Automotive Engineering. Show all posts
Showing posts with label Automotive Engineering. Show all posts

Diesel Engine as an Alternative to Gasoline Engines

The diesel engine is a type of internal combustion engine invented by Rudolf Diesel. He received a patent for the diesel engine in 1892 and its main goal is to create efficient engines as an alternative to gasoline engines. While the petrol engine was invented first by Karl Friedrich Benz patented in 1879. Fuel the diesel engines we know is diesel fuel, while petrol engines of course are gasoline.

Gasoline engine and diesel engine works by creating a controlled explosion in a piston Chamber. A small explosion quickly moves a piston which in turn would turn the output shaft. In a gasoline engine, the mixture of fuel and air is injected into the Chamber and then ignited type by sparks created by the sparkplug. While the diesel engines are not dependent on the sparkplug to ignite the mixture. Fuel was forced into the space and high pressure generates heat that is enough to ignite the fuel and air mixture.


Some rely on diesel engine glow plug to heat and to minimize the amount of pressure needed by the engine for change. Without the added heat source, the pressure needed to achieve ignition (especially when the engine is cold) will be very high.


Diesel engines require diesel fuel to the combustion process to function properly. Diesel fuel cheaper than gasoline engines because not so requires purification. In addition, the diesel engine is more efficient and hence diesel cars have a mileage better than petrol cars.
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Get To Know the Piston Rings

As the name suggests, the piston ring is a ring of metal affixed to a piston engine. In a car engine four-stroke, piston ring system is responsible for insulating the combustion chamber and its contents from the rest of the machine, as well as regulating the circulation and consumption of oil.

On simple two-stroke engines, as found on the motorcycle and scooter piston ring does not regulate the circulation of oil because oil lubrication is provided by a mixed directly with the fuel. In either case, piston ring plays an important role in the smooth operation of the machine.

In General, four-stroke engine has a three ring circuits are used per piston. Piston rings are not completely surrounds the piston, but otherwise each open, so that it can compress when installed in the cylinder, to ensure a seal.

But not all of them perform the same function. In order from top to bottom on the piston head is the compression ring, ring and oil control windshield wipers. Each usually made of iron or steel, but they are different shaped and features a unique design.


The main function of the ring is the ring compression, especially as a seal which keeps the mixture of fuel and air in the combustion chamber so as not to flow into other parts of the machine. In the most visible part, the compression ring can be seen as a rectangle or keystone.

In the middle of the ring, the wiper is designed with a tapered edge tilted down to lubricate the cylinder walls, and excess oil directly to the crankcase. Finally, the oil control rings, which usually consists of two thin Rails, combining and drill holes that allow water to pass through the oils.


From all parts of the machine that experience a piston ring wear, is the most constantly depressed. With a piston engine it acts as the tip moves from the combustion chamber, the pressure of each ignition must contain a ring. Although a layer resistant to wear and maintenance, piston rings are prone to wear and tear in normal usage though.


If the piston ring has been worn out, unwanted behavior can affect engine performance. Oil and fuel that were previously separate can be mixed, causing pressure to occur in the crankcase dilute the oil and gasoline. In addition, the oil into fuel can burn; causing car exhaust system emits a blue smoke.

Eventually, the wear of the piston ring can negatively impact compression of machine, causing the fuel wasted, excessive oil consumption, and decreased power of the machine.
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What is a Starter Solenoid?

Starter solenoids are electrical components that are found in most cars, trucks and other vehicles. The main purpose of the starter solenoid is to isolate the ignition switch from a high level of amperage needed to operate the starter motor.

When the ignition switch is turned on one of these systems, the battery voltage is provided to the starter solenoid. That causes the solenoid to connect and enable contact between the starter and the battery. Most starter motors have integrated solenoid, although in some cases the starter solenoid is as separate components.

Internal combustion engines are mostly found in cars and trucks require an electric motor to start. Starter motor aims to rotate the engine until the internal combustion process can be taken over. Because the electric motor is often takes several hundred amperage to operate, it is necessary to isolate the circuit of the ignition key from the ignition. This is one of the main reasons to use the starter solenoid.

It is the solenoid electrical components consisting of metal slug with the coil around it. When the coils receive electric, the resulting magnetic field and core are forced to move. This Act was used in the starter solenoid to act as some sort of relay.

This solenoid is usually connected to battery voltage on one side and the starter motor on the other side, and is activated by a switch. When the switch is turned off, the solenoid acts to provide battery voltage directly to the starter.

When the starter solenoid is installed directly on the motor starter, they often perform other useful actions. Linear solenoid core movements can be used to move the teeth of the starter, cause it to act as the flywheel.

If the starter solenoid is not installed directly on the motor, then other methods need to be used to perform this action. Generally involves separate solenoid, starter gear shaft will have a helical groove. This causes a rotational movement of the starter shaft to force the teeth into place instead of a linear movement of the solenoid.

In the application of separate solenoid, they are usually easy to be replaced. This solenoid is usually mounted somewhere in the engine compartment, and usually has four electrical connections. Integrated solenoid Starter is usually more difficult to reach the start, and when it failed generally need replacing or constructing the back the entire starter.

In this case it is necessary to remove the battery before attempting to operate the solenoid, as they have an electric current which can easily occur during korsleting operations improvement.
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Know Your Radiator Hoses

Radiator hose is a hose which is in charge of transferring the water pump from the engine coolant to the radiator into the car. Connected to the nipple on the radiator or water pump or engine with intake of clamps. Most of the design of the radiator hose formed specifically for the application. However, there are some universal designs that can be bent and fits into many different applications.

When doing the replacement radiator hose, you should also replace the hose clamps. There are many types of radiator hose clamps that can be used, from a single strand of heavy spring steel that is installed with a pair of pliers, for more general types of screws are installed and fastened with a screwdriver. Some of the designs utilizing the radiator hose spring steel in the hose to prevent being sucked by the force of the water pump.


In most applications, the hose radiator hose down on the radiator is lower. The refrigerant sucked out of the radiator by a water pump through the hose and entering the engine block. Cooling is driven by the engine block and heads with a water pump. After the cooling cycle is completed through the machine, it has to absorb a lot of heat. Later pushed out by the machine and sent back to the radiator for the cooling cycle is started.


There are many different dimensions of the hose and depending on the design. Each vehicle has its own special design with twists in the right place, so for every vehicle harness size respectively. There is a hose diameter 1 inch (2.5 cm) and all of the lines to the hose with a diameter of a few inches. The time it takes to draw the heat from the engine is specified the size of the interval that it takes to get the flow rate.


The machine has a coolant that circulates through it then the radiator will heat too quickly. Cooling takes inside the engine to absorb heat as the time required by the radiator required to dissipate heat. The size of the radiator hose can help to achieve that goal, known as the time of saturation.

Usually the lower radiator hose with a diameter larger than the upper hose. This allows the water pump to pull in a large amount of coolant from the radiator, but the small hose on top prevents the engine cold too fast.
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When does the EGR Valve needs to be Cleaned or replaced

EGR valve (Exhaust Gas Recirculation) is an important part of vehicle exhaust gas circulation system. EGR valves have been used in the United States since the 1960s, when car companies are looking for ways to improve the efficiency of vehicles and also to reduce pollution.

When the EGR valve is clogged or damaged, it can cause deviations in performance engines such as voice rough or knocking the valve, then this means the EGR valve shows that should be checked immediately.

EGR valve is working with a small number of the route the exhaust gases into the combustion chamber. If the temperature in the combustion chamber is too high, the nitrogen oxide is produced, which combines with elements in the atmosphere to form smog. Introduce a small amount of exhaust gas into the system to reduce the temperature in the combustion chamber, reducing the amount of nitrogen oxides produced.

EGR valve is generally are mechanical, and only have a small valve that opens to allow the exhaust to the combustion chamber and will shut down if it is not needed, as well as to maintain an optimal mix of air for combustion.

Some mechanical version will not open until there are enough back pressure, make sure that the valve will not open when the machine is idle or warm up and needs a higher concentration of oxygen for combustion. Electronic EGR valves are also available, and use electronics to adjust the valves.

If the EGR valve is stuck open it will cause vacuum leaks, inefficient combustion, stationary, hesitate, and sometimes stalling proceedings in cases of extreme. This is because the car's engine could not burn the carbon dioxide from the exhaust that should require oxygen atmosphere. If the combustion chamber is flooded from the EGR valve exhaust gas that is open, then it will not work properly.

To check and see if the EGR valve is stuck open, then needed someone to station inside a parked vehicle with the brakes when you check the plunger shaft to see if EGR valve is stuck open or has not been already.

If the EGR valve is stuck closed then the nitrogen oxide emissions will go up and the car engine may start knocking or tapping. The sound of a knock occurs when the fuel mixture in the combustion chamber in the cylinder ignites before the blast had been reached. In this case, the engine must be warmed up and rotate the EGR valve to see if it will move.

In both those cases, simple repair may be performed. In the case of a clogged EGR valve cleaning EGR valve then a simple mechanical will solve the problem. Whereas in the case of EGR valve is controlled by a system of electric or mechanical problems are more complex then the valve replacement may be required.

EGR valve is a component of the motor vehicle, and care should be taken to ascertain whether the EGR valve needs to be replaced or it could still be improved. EGR valve is a component of the motor vehicle, and proper care should be taken to ascertain whether the EGR valve needs to be replaced or it could still be improved.

Failure to repair or replace the EGR valve will not cause life-threatening conditions, however this will cause your car's engine to be less primed and increase potential emissions. Especially in areas that require testing of smoke, a car with a faulty EGR valve may not be tested.
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Get To Know the Sealant Gasket

Sealant gasket is essentially a type of spray adhesive, glue, or pasta that holds a mechanical joint is known as the gasket in place. Its main purpose is to prevent leakage of fluids and reduce the possibility of mechanical damage as a part rubbing against each other.

Sealant gasket is essentially a type of spray adhesive, glue, or pasta that holds a mechanical joint is known as the gasket in place. Its main purpose is to prevent leakage of fluids and reduce the possibility of mechanical damage as a part rubbing against each other.

The most common use of gaskets contained in machinery such as cars and trucks, but in fact many other applications that use gaskets for example industrial machinery.

The sealant is used to ensure that the gasket the machine remains tightly closed. This is usually intended to prevent discharge of liquid or gas. Sealant widely used in liquid and vapor systems which operate under temperature and pressure situations, but in fact there are many applications for this type of connection requires mechanical sealants.

Even the gasket starting very tight and is under this condition will weaken over time. There is also a natural limit to how well they will close. You can also add an additional layer of protection that can improve the performance of the mechanics in the long term, and it could reduce the amount or how many times the repair needs to be done.


This is usually very easy to use and implement. Most made in a tube and have a consistency like pasta, and consumers often have a choice of products that are optimized for the seal made from foam, rubber, silicone, plastic, and metal.

Depending on the project, this kind of sealant can be used with different types of materials. This product is most suitable for a given application amongst others depends on the material to be glued, the environmental conditions, temperature, and pressure in the operating system.


Some gasket sealant will harden after application. This is usually referred to as "setting the violence." Types of sealants are usually recommended to be used on rigid materials and permanently affected by slight vibration no vibration at all. Sealants and gaskets are also made with different drying rates, quick setting capabilities, a combination of snapping and gluing properties and chemical resistance.


The sealant is usually a part of automotive repair, though in this case usually requiring mechanical products with settings optimized for machine mechanics. On cars, trucks, and motorcycles, head gasket used to seal the engine block and cylinder head. The head gasket is flat, semi-rigid graphite, the material to be cut two shaped surface that is affixed.

A sealant is often applied to both sides of the head gasket to ensure that small surface irregularities in any surface mounted perfectly, and filled two surfaces close properly when pasted.
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How to fix scratches and Beret on vehicles

Scratches and Beret is the most common damage on the vehicle. Although not dangerous to riders, but surely this beret scratches and will interfere with the appearance of your vehicle. Actually, to repair the damage that this one is pretty easy. Just to give a little time, you can fix it yourself.

Usually scratches and not to disturb the beret metal or metal on your vehicle to get to know how deep scratches, we can check it out by way of fingering the scratches with a finger. When your nails are not to get into scrapes, scratches included.

To resolve it, you simply rub the part that is scraped with a mixture of polisher and a clean washcloth. Rub gently until the stroke was not seen again.

If it turns out that there are scratches on the vehicle You deep enough until your nails feel goes into it, then you can handle it in a way that scratched part washing with detergent foam. Then rinse until clean, and then dry it with a clean Duster. Once cleaned, the part rubs oil solvent to remove the remnants of dirt on the metal.

After the cleaning process is completed, sandpaper parts scratched with sandpaper paper size of 400 or 500. That section is slowly rubbing heads with moistened with detergent foam until the scratches look no further, as well as no sharp edge between metal and meni or between meni and paint.

Then dampen the part that has been sanded it with alcohol. Then, paint the back section by using a small brush and smooth.
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The odometer of the vehicle and its function

The odometer is a tool to track mileage cars, trucks, or other vehicles, and displayed in the dashboard. While on the motorcycle shown in the base of the handlebars, dashboard, or on top of the gas tank. This equipment can be either mechanical or digital.

Mechanical odometer basically consists of a set of wheels that display the number on the respective edges. Wheel change in accordance with the rotation of the wheels via a cable mechanism when driving. Mechanical parts are hidden from view by a casing window that displays only one line number, which is the current mileage.

This can be seen on the face of the speedometer. Depending on the age of the vehicle, the mechanical odometer may have a maximum number of kilometers, where once it reaches that point it will roll back to the numbers 00000 kilometers.


Modern electronic or digital odometer keeps track of the mileage by using computer chips. Digital readout is displayed and the mileage is stored in the engine control module. Producers hope the electronic versions may prevent fraud, but this has not happened.


Vehicle resale prices are mostly based on mileage. Fewer vehicle kilometers traveled the higher resale prices. Odometer fraud or clocking involves reading settings back manually to false numbers decrease mileage so that influences the price of the car.


Clocking the odometer is mechanical task is pretty easy. Dishonest sellers party and less ethical can remove the device, and manually change the wheel to display the desired range, and then reinstall the device. The buyer can pay more than the price of the car is actually worth, and usually when it's too late for a new notice.


The automotive industry is expected to increase the use of digital or electronic odometer in a significant way to reduce fraud. However, the tools required to legally calibrate digital odometer for lawful purposes is available online and offline. This tool is known and is used to reassign digital devices. Experts claim this is really easier than a mechanical odometer outsmarted.


To protect yourself against fraud, compare odometer mileage vehicle with REGISTRATION. Every time a vehicle moving of hands, the mileage should be listed on the REGISTRATION. If the vehicle looks newer, with 20,000 kilometers or less on the odometer, it should still have the original tires.

For older cars with low kilometers, check the wear and tear on the gas pedal, brake and clutch. Ask the maintenance records and the records check smoke and record mileage.


If you are considering buying a car with a mechanical odometer, the numbers should line up evenly. If they are bent or appear to move when you knock on the dashboard or the display of the readings, you should not continue.
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The cause of the sound of a knock in the engine

Engine knocking or tapping sound in the engine is engine noise that often sounds like the sound of the metal that you met in a cavity or like the sound of this crunching sound. It is usually heard during acceleration and usually occurs due to irregular combustion process.

For example a mixture of air and fuel that happens too early or burn spontaneously.Sometimes incorrect octane gas can also be a cause of engine knocking. In addition there are also caused by not from combustion process but from mechanical problems, such as faulty bearings.

In General, the combustion process that is problematic is the root of the problem knocking. In some instances, this occurs when a mixture of air and fuel mixture in the engine burn out too early. Irregular explosions posed the problem can lead to damaged piston or other damage on the machine and can shorten the life of the engine.

Usually a mixture of air and fuel that would produce less than optimal air so much that less good for the engine and can cause sound beats.

In some cases, the problems on gasoline can also cause irregular combustion giving rise to the sound of a knock in the engine. This usually occurs because of a problem with gasoline octane number of compression fuel that is not normal before spontaneous ignition.

At the time of this spontaneous ignition occurs normally sound voice also beats that could cause damage to the engine. Gases with a low octane rating are usually best able to withstand the compression that is not normal.


The sound of beats can also occur due to engine overheating. In this case, the mixture of air and fuel could really burn without any mere. However spontaneous explosions can occur when the cooling system engine failed to control the temperature in the combustion chamber. Spontaneous combustion that occurs in such cases is usually referred to by the term Pre-Ignition.


Sometimes the engine noise knocking can also be caused due to problems in addition to the problem of combustion for example is the mechanical problems. The mechanical problems, among others, including defects in the bearing crankshaft, wheel style broke, and the water pump bearing has worn out. Besides, the timing belt tensioned which has a loose, air conditioning compressor problems and issues rotor bearings are used as the alternator could also lead to a knock.
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How to Clean Fuel Injectors

Currently the fuel injection on a car's engine is one of the most critical engine components or prone to breakage. Therefore keep the material clean fuel is essential in order to keep it running optimally and the machine performs well, save money on fuel and reduce the impact of harmful exhaust emissions.

Fuel injection system usually experience problems caused by dirty fuel or mixed water resulting in deposits of dirt and rust. For that you can clean the fuel injectors with three kinds of different ways. The most effective way is by adding fuel injector cleaner into the fuel tank of your vehicle.

The second way to clean fuel injectors is to "On-Car fuel injector cleaner". This method uses high pressure, toxic and flammable so requires knowledge of the mechanics of reasonably sufficient to keep it from happening things unwanted.

The last and most effective way is to bring your vehicle to a garage or mechanic that has the knowledge and equipment to clean and test the fuel injection system. Usually a mechanic will take off fuel injection and then clean it with a "fuel injector cleaning off Car" uses "Injector Cleaning Machine".

Then with the use of the machine can also be done testing the injectors to make sure that the injector is still functioning properly. If it turns out that found damage to the injectors then a mechanic could replace the injectors by injectors and the cost is quite expensive.

If you want to try using "On-Car fuel injector cleaner" then various steps should be taken to ensure safe and effective results. In the condition of the engine dies and there is no spark, disconnect fuel lines and prepare the required placeholders are placed correctly to accommodate the fuel spill.

We recommend that you remove the fuel pump first so as not to cause the error code in the computer your vehicle. By wearing eye protection and skin, connect the container contains pressurized solvent cleaners to the injectors. Turn on the machine and allow the solvent to flow to the injectors, after solvent really enter into the injector and then turn off the engine.

Remove all cleaning equipment and then plug it back in the channel and the fuel pump. Then turn on your vehicle and do a test drive to make sure the effectiveness of cleanup, if necessary repeat the cleaning process until such injector is really clean and functioning optimally.
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Get To Know a Fuel Pump

The fuel tank is generally located in the car away from the machine then the fuel pump is needed to draw gasoline with gas towards the machine. There are two types of mechanisms are used in cars, namely electronic and automobile carburetor fuel injection.

Carburetor fuel delivery is a mechanism that uses the principle of simple vacuum to siphon the fuel to the engine. The same vacuum sucking the air and fuel mixture to the engine and also siphoning off of fuel along the path towards the machine. However, additional assistance is required so the carburetor of the engine has a mechanical fuel pump. Usually the carburetor is located beside the car engine.

While the electronic fuel delivery system is injection fuel by means of spraying a fine mist of fuel into the engine room. A computer control system and the closely related to factors such as the position of the throttle, fuel-air ratio and monitoring the content of the exhaust.

Because the system is not using the vacuum to draw fuel along the line then the fuel pump must be located within or beside the fuel tank. Its fuel pump is electronically controlled and supported so that sometimes the system operations can be identified with a gentle steady buzzing through sound from the rear of the car.

Often the fuel pump failure occurred primarily on cars that use electronic fuel injection. When operating a car failure then becomes difficult living or cannot start. Fuel pump failure can be verified by means of checking the final fuel delivery system. If there is no fuel delivered to the engine, most likely the fuel pump failure operation.

Replace fuel pump electronics can be a complicated job. On some cars, the fuel pump is located in prime location within easy reach from under the car. Whereas other types of cars have a panel which can be accessed from inside the car could be removed so that the fuel pump can be reached.

There is also a type of car has a fuel tank must be removed and taken down beforehand in order to be accessible so that makes this work be added long and quite tiring.
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How to Troubleshoot Car Engine Will Not Turn On

Sometimes there are situations where we can't get the car engine is turned on. If you encounter such a situation should not panic, all you need to do is stay calm and try to find out and fix the problem that occurred. Try you just follow the procedure outlined below.

If the condition of your machine is nice, it’s good, ignition timing and precise, then also a.k.a. needed to switch on the machine with easy is the amount of air and fuel mixture proper spark from plugs as well. In order to produce enough sparks that is determined by the condition of the battery, because the magneto ignition requires very large currents.

Ignition system sometimes not getting enough electric energy so that it often happens where a tough machine switched on suddenly alone can live so the key contact is returned to position ON, while the engine was still spinning.

At the time of the machine breaking down or could not start but can be turned easily by driven, then the first thing to do is check the battery terminal or battery head. In this section there is a sludge that is often on the inside of the connector cord. These deposits should be cleaned with a wire brush or sandpaper. While there is dirt on the outside can be cleaned with warm water.

How to quick test to find out the dirty terminals is by turning the key to start position contact for approximately 10 seconds. Try you touch with your hands, then the terminal is dirty it will feel hot while the terminal is clean, not hot.

On vehicles that are old, the condition can also be the starter Dynamo so the machine does not switch on cause because an old starter will have a fairly high power prisoners so far too absorbing electrical energy very much to play the machines.

Fishing with battery on another car that still fit to turn the ailing car now become way less secure because the computerized system on most new cars do not withstand surges that may occur.

To address this, then both cars must be parked close together but must not come into contact. The positive terminal of the battery to be connected, while the end of the negative cable or grounding cable should not be connected at the battery terminals but must be connected to the engine stalled car close to the magneto ignition.

Once everything is connected, the donor car can now be turned on and gassed to about 2000 rpm before the engine that will be fished. After the car was lured turn on, turn off the engine but leave the engine donors who had turned hard to stay alive and able to turn on all the lights, air-conditioning fan and rear windshield wiper mist. After the reasonably enough, remove the cables connected with reverse order to avoid excess voltage.
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How to Replace a Radiator Hose

Radiator hose on your car should be checked and replaced regularly. Replacement radiator hose even examination including an easy job, so you can do it yourself. Here is the guide you need to pay attention to.

To check the health of the radiator hose, you simply depress the hose. If it feels soft like foam or looks swell, burst, even broken, meaning that it's time to hose replaced. Each car has two radiator hoses, namely upper and lower hoses hose. Usually if you replace one of the hose, then the other hose should be replaced.

When replacing a radiator hose, the car's engine must be in a State of cold. After the machine is cold, place a large container under the drain hole and holds the contents of the radiator. Then the loose cup radiator and open the petcock located under the radiator using a pair of pliers.

After cooling, remove the clamps that hold both ends of the hose. In some types of automobiles, radiator hose there is being detained with wire fasteners. To release it would have to use a screwdriver. If the clamps apart, the interval you can get easily. But sometimes the hose can not be released.

In this case, you must cut the hose. Check also that you remove the clamps. If it is rusted, you also have to replace it. In choosing the hose and clamp, you have to be careful, because there are many kinds of sizes available for various types of cars.

Before installing the new hose, clean the connecting points of the first hose from dirt and rust with sandpaper. Then reinstall the clamps at each end of the hose. Install retaining gaskets around the connecting point of the hose and insert the other end of the hose on the fitting him respectively.

Note the circumstances of the clamps, clamps should be approximately one inch from each end of the hose. Tighten the clamps-clamps, but not to damage the hose. Next fill the radiator with coolant water back and turn on the machine for approximately 15 minutes. This is done so that the temperature corresponds to the machine that is running.

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The cause of the Check Engine Light turned on in a car

Modern cars are run by computerized systems that constantly monitor vehicle performance efficiently. When damage is detected, check engine light (CEL) will be lit up on the dashboard so that the driver knows that a problem has been detected. Unfortunately, the light itself does not tell the driver what the problem is, the problem could be from the CAP loosely on the gas tank or a problem with the catalytic converter.

Fortunately, the check engine light on, engine control unit (ECU) of the log will appear one or more codes that can help drive mechanics against the source of the problem. If the Check engine light appears is not necessarily a major problem or necessary repairs are expensive. However, driving a car with the check engine light turned on could mean damage has occurred. It would be better to let the vehicles checked immediately for the sake of your convenience.

Gas Cap loose or missing

If the gas cap loose or missing vehicle, car computers can record this as a problem with the emissions system. Gasoline from the tank can evaporate, which will lower mileage cars. This problem is usually very easy to repair and replace the cap is also very cheap

The issue of electronic fuel injection system


The engine includes a number of systems that work together to provide excellent performance under normal circumstances. Most modern cars are powered by a system of electronic fuel injection (EFI), which uses a number of valves and sensors to ensure the correct amount is between air and fuel that goes into the piston Chambers to create the right mix of combustion. Mass flow sensor and oxygen sensor (O2) is an important part of this system, and can cause significant damage to the light turned on. Problems in other systems can affect your EFI, including catalytic converter, so it is important to fix it immediately.

Spark Plugs Wear Out

Time a spark also controlled electronically. If the spark plugs are worn out or misfiring, it can cause the car jerks during acceleration. Bad or damaged cables can also cause misfires. Plugs and cables to be replaced relatively easily and can improve the performance of the car.

Vacuum Leaks

The other thing that often gives raise to constraints on check engine light is a vacuum leak. Hoses or manifolds may be loose or cracked, which will interfere with the air fuel ratio in the engine. A visual inspection can be helpful, but in some cases a vacuum leak may be very rare. Some repair workshop offers a test of smoke, where the system of air intake and hoses were filled with smoke, and then monitored to see where the error occurred. Vacuum leaks which can trigger the check engine light including exhaust gas recirculation (EGR) valve is sticky, or more seriously, head gasket leak.

Catalytic Converter problems

Catalytic converter is part of the emission system, where parts that can convert the gases that are less dangerous, created by combustion in the engine exhaust. On the car is maintained on a regular basis, this part is rarely a problem occurs. If the other parts, such as the O2 sensor or plugs, the crash and not immediately replaced, this may damage the catalytic converter. This is a very expensive repair, but the car cannot run without it.
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How to Find Out the Cause of the Engine Will Not Turn On

If one day our motorcycle engine will not turn on, then the first step we have to check is the ignition system and the fuel distribution system. But if two systems are in good shape, then the damage that occurs is due to the condition of the engine itself.

Early action that we have to do is check if the engine compression is good or bad by the way we open the spark plug, the spark plug hole then insert compression gauge commonly called compression tester.

This tool is sold in stores that sell keys and other mechanic tools, and the price is not too expensive. As for how to use it are as follows:

Insert the other end of the compression tester into the spark plug hole, then rotate the handle so that the gas throttle valve on the carburetor. The next step is kicking the kick starter so that the engine can be rotated. With his spinning machine means compression will occur at the cylinder compression pressure then it will depress the valve at compression tester tool so that the results of the compression engine gets caught in the compression tester.

As a result, this compression pressure will push the needle pointer on the compression tester. A good compression pressure for around 800 four step machines up to 1200 Kpa, whereas for two steps is about 700 to 1100 with Kpa.

If the pressure of compression machine approx. 600 Kpa, the machine can still live but will be non-powered vehicles and fuel consumption being wasteful. To test which parts are damaged, then stir in a little oil lubricant through the spark plug hole and allow the oil to spread out above the first compression ring.

This lubricating oil will serve as a divider on the shaft of the ring. After his lubricant oil mist then do testing again with a compression tester and see the result, if the pressure of compression looks up or not on the gauge.

On a four-step, if the results of this second test of its rise a little, then most likely a damaged valve is a part or parts of the shaft of the ring. For more convincing then the parts of the cylinder must be disassembled, so if the machine does not switch on, it means the engine compression is less.

As for the cause of the reduced compression among other things because the cylinder that's been worn out, damaged her shaft, the shaft of his broken ring or his gap was already too big and the ring has been weak, valves-valve is leaking or stuck, Setup a free gap incorrect valve packing head cylinders has been damaged.

Then if you don't have a compression tester then there is yet another way to test whether the compression engine is good or bad. With the second way if you don't have a compression tester tool, you can analyze the compression but the requirement you must often train senses sensing. How to do this are as follows:

After we open the spark plug then insert our fingers into the seat of the spark plug, then kick starter kick and we feel the engine compression results at your fingertips.
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Why Do Car Engine Into a Limp

To create maximum engine power required complete combustion of each cylinder. If one cylinder combustion is less than perfect, then it will cause a big vibration in the engine. This is commonly referred to as machine limping.
A less than perfect combustion can be caused due to the pressure of compression one cylinder low pressure cylinders, or among its not the same. This caused the compression pressure deviation there are some components that are less working properly. It is usually caused by interference or damage to the valve and valve seat, piston and piston ring, cylinder, cylinder head, cam shaft (camshaft), and valve mechanism.

Common valve has no cracks at all, causing leaks and fuel blended in with the rest of the combustion will be out. This happens because the cradle and valve (valve and valve seal) is not suitable anymore. It is also very influential towards the compression pressure occurs on a machine. Especially when there is a mismatch between the valve and the cradle, good position, nor does it work. It will give rise to pressure of compression is not as expected.

This mismatch can be:

1. The valve Gap is not the same

Slit valve is entered is not the same result in the insertion of the gas or fuel with air into the cylinders at a time when the suction is not the same step size. This will cause the compression pressure is not the same as well. Next followed by combustion pressure is not the same, thus causing the machine to vibrate or limping. These symptoms will be seen at time steps of compression, nor the effort.

Exhaust valve gap is not the same will cause the exhaust gas between the cylinders become uneven. When the gap is too big, it will cause the gas when inmates step waste. The cause of the smoke flue is open when the shaft was at its dies down or while moving to the point of death.

In addition, former gas which is still this pressure would hamper the process of flushing. This means that the intake of gas suction during step be reduced and pressure of compression or combustion will also be reduced. As this happens only on one cylinder only so the symptoms immediately visible limp. Machine Symptom machine limping will also arise when the exhaust valve gap on one of the cylinders is not the same, and the next will cause gas leaks at the time step compression and step work.

2. The lip of the valve and the valve holder is on fire

When the leaves of the valve or the valve surfaces intersect holder valve holder valve, or burn some lip valve will not close tightly cradle. When this happens on one cylinder only then will cause the onset of symptoms is also limping machine.

3. Weak valve Springs

Valve spring weak which will result in the entry of the easy valve lip shit and will occur leaks. This shit is usually charcoal carbon remnants. When this happens on a single cylinder engine symptoms then just limp will soon arise.
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The Workings of the Machine Two Step

The first step is the piston moves from BDC (bottom dead center) to TDC (top dead center). By the time the piston rises to the top, then the fuel entry whole open and fuel is sucked from the carburetor into the room on the vessel at the bottom of the piston crank.

At that time also the flushing hole and drain covered by the shaft. Then going down the shaft resulted in compression in the crankcase crank, and then there is fuel in it is pressed into the top hole towards flushing.

Hold the shaft down to the BDC and approximately 10% of the shaft before reaching the BDC, flushing holes began to open up to the BDC. The compressed fuel in crankcase cranks up through the transfer port and fills up the cylinder at the top of the shaft.

Then the shaft rises again for the TDC and approximately 10% of the shaft after the flushing hole covered by BDC cardiothoracic surgery, at a time when 20% of the shaft after BDC that moment also a drain covered by the shaft. With the closing two holes then began the compression stroke fuel.

Meanwhile at the bottom of the piston pit entry and fuel began to open new fuel is sucked from the carburetor into the room like a crank. After performing the steps of compression then the fuel undergoing combustion process that is followed by return of the shaft to the bottom in order step effort or work steps.

After approximately 80% of the shaft after step through TDC, sinkhole began to open and process of disposal gas combustion residual to the BDC, and approximately 90% of the shaft after the flushing hole then TDC (transfer) is open and that there was also a sign of new fuel into the cylinder at the top of the shaft while pushing gas remnants out of the hole.

The process of disposal income and fuel into the cylinder at the same time is called flushing. Meanwhile, at the same time the entry holes covered by the shaft.

So the conclusion is that the work cycle the machine motor this two steps with just one rotating crankshaft can generate one horsepower. So the difference with four-step is if the machine four steps to do one job takes one full step while for two steps machine with just one step shaft can produce two work.
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The Working Principle of a Four Step Machines

The first step is sucking fuel from the carburetor to the cylinder bore, after this step the piston moves from TDC (top dead center) toward BDC (bottom dead center) and at the same time the entry valve opens, while the exhaust valve closes tightly.

In this step, enter a mist of fuel through the entrance hole is passed on to the incoming valve and finally into the cylinder. After the process of sucking the fuel is finished and the position of the shaft are under, that's when the valve closes the entry so that the mist of fuel trapped in the cylinder.

The second step is the last step of compression fuel i.e. the shaft moves of BDC to TDC. At this stage the second valve in the State shut down the meeting so that the resulting compression of machine is good. Strong or weak energy produced is directly proportional to machine a good or bad result of compression, as well as a quantity of fuel mist who smoked in the first step.

At the time of the shaft before reaching the TDC in the end step compression, spark plugs sputtering flames and burning fuel mist so that it is making a hot high-pressure gases.

The next step is called a step or steps of work effort, at the moment the shaft moves from TDC towards BDC. In step this is the useful energy produced to run vehicles, while other measures thus require energy. At this stage the second valve is still in a State of closed meetings and just before the shaft up to the exhaust valve begins to open BDC.

The last step is a waste, at this time the shaft back moving from BDC toward the exhaust valve open and TDC while the valve entry closes the meeting. The movement of the shaft at this point serves to encourage the remaining combustion gases thrown towards the exhaust. After the end of the next stage of this exhaust step is to return to the first step to step up to this dump again repeatedly.
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How Do Motor Engine Can Work

Two step machines or machines four steps can generate power due to utilizing style development or expansion of the gas, because the gas will inflate suddenly when heated. As for indoor spaces in the venue change fog machine fuel that is a mixture between air and gasoline to gas heat is called a cylinder.

When the fuel is trapped inside a cylinder which is then followed by the shaft back to the top of the cylinder, then this is known as compression step. After the compressed fuel then the pressure in the cylinder to be and next second on spark plug (spark plug) are lit to burn the fuel.

The result of the lighting of this fuel, pressure on combustion chamber increased drastically. The result of the expansion of gases or explosive effect will create rapidly rising pressure exceeds the pressure generated by the compression of the shaft before the fuel is ignited.

High-pressure hot gases produced would need the space to development, then the only components which can be moved inside the cylinder is just part of the shaft and the shaft is pressed into the bottom hole of the cylinder. Travel the shaft due to gas pressure is known as step effort or work steps.

Comparison of the amount of fuel that is in the cylinder on the position of the shaft below, or before the fuel is compressed and the amount of fuel after it is compressed, or on the position of the shaft at the top as the comparative ratio of compression. The higher the compression ratio of an engine comparison will then be greater power also can be generated by the machinery.

A bizarre machine with petrol fuel this is has a certain limit in its ratio comparison. Because when the ratio exceeds its terms then the shaft will be quickly damaged. We take the example of the highest compression ratio limit for example petrol engine is 12:1, which means the volume of the cylinder holes filled by fuel at the time of the position of the shaft below is 12 sections, then the fuel is compressed the number into one piece.

Then when there is a gasoline engine construction comparison ratio of its more than 12:1, the consequence is the shaft will quickly break down and going on detonation (the sound of tapping) inside the machine and the machine can't live perfectly. Otherwise, once the engine compression ratio 9:1, then the machinery can live well.

Movement or step down and up the shaft in the hole of the cylinder called a linear movement, in order to make use of linear movement this means that movement must be converted into rotary motion (spin). The conversion of linear motion into rotary motion is performed by Rod shaft and crankshaft.

And encouraged by the gas piston cylinder bottom is called the working steps or measures of business, generated due to fuel mist transforms into a high-pressure hot gas. This fuel mist can only be switched on once, thus meaning must be prepared or provided new fuel to be sucked entered the cylinder bore.

The remaining combustion gases have been exploited to push the shaft also can not be used anymore and must be discarded. So to keep the machine lives on here there are two answers in order to carry out the work. The answer to the first of four steps and answer the second of two steps machine.
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