Effects of carbon deposits in engine on compression ratio
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Excessive carbon buildup in diesel engines is a prime cause of the black smoke that diesel engines have a reputation for generating. Excessive idling by diesel engines is also a main cause of carbon buildup on pistons, ring, injector and valves.
Engine carbon deposits have a measurable effect on performance, emissions and fuel economy.
The Effects of Carbon Buildup
First of all, engine smoothness will be affected. The engine operator will notice that the engine might start to idle rough, a sure sign of misfiring. Also, engine knock might be heard. Carbon deposits that build up on the piston crown and the combustion chamber can effectively increase the compression ratio. This would require a higher octane fuel, such as upgrading from Regular (87 octane) to Plus (89 octane). Engine operators might also notice some cold start problems, along with a general lack of power, or poor performance from the engine.
Not as obvious are other problems that result from carbon build up. Those noticeable issues mentioned previously are signs of inefficient combustion that increase the emission levels Depending on the age of the engine and the region of the country, this can lead to a failed emissions test. In states where emission testing is done, a failed test will prevent the owner from renewing their license.
Accelerated engine wear can also be a problem. In many cases, such wear goes undetected until a major and costly problem surfaces. Finally, all of these symptoms affect fuel efficiency.
Engine carbon deposits have a measurable effect on performance, emissions and fuel economy.
The Effects of Carbon Buildup
First of all, engine smoothness will be affected. The engine operator will notice that the engine might start to idle rough, a sure sign of misfiring. Also, engine knock might be heard. Carbon deposits that build up on the piston crown and the combustion chamber can effectively increase the compression ratio. This would require a higher octane fuel, such as upgrading from Regular (87 octane) to Plus (89 octane). Engine operators might also notice some cold start problems, along with a general lack of power, or poor performance from the engine.
Not as obvious are other problems that result from carbon build up. Those noticeable issues mentioned previously are signs of inefficient combustion that increase the emission levels Depending on the age of the engine and the region of the country, this can lead to a failed emissions test. In states where emission testing is done, a failed test will prevent the owner from renewing their license.
Accelerated engine wear can also be a problem. In many cases, such wear goes undetected until a major and costly problem surfaces. Finally, all of these symptoms affect fuel efficiency.
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