[introduction]
Engine is the heart of the car, it is to make sure traffic is normal the crucial assembly component of travel. The stand or fall of engine also matters to the key that whether can we drive normally directly. Once engine appears breakdown, a lot of cars advocate meeting end at car quality bad, engine is not durable wait a problem a moment to go up. Is the fact really such? does the breakdown that engine appears maintain with yours don't have a relation?
30 seconds fast read content of full text key:
1, the biggest killer that accumulating carbon is engine trouble.
2, quality of benzine, engine oil is bad to can cause those who accumulate carbon to increase.
3, engine crock wall deterioration of ropes, with maintain undeserved have affinity.
4, using engine oil, gas correctly is crucial.
One, the harm that accumulates carbon
1, bring about weather strip surface to produce gap, influence sealing.
2, influence engine is moved toward into air vortex flow, affect motivation.
3, embezzlement firebox space, reduce combustion power.
4, bring about oil duct to jam wait for a problem.
5, bring about surface of metallic spare parts to wear away.
2, how is accumulating carbon formed
1, use inferior engine oil and gas.
2, nonsked change core of filter of air, engine oil, benzine.
3, drive a vehicle of long-term low speed or low speed are high-grade a drive a vehicle.
4, long-term place idle fast movement.
3, the formation that how avoids to accumulate carbon
1, use complete synthesis engine oil, can undertake effectively cleaning to engine interior, reduce the generation that accumulate carbon.
2, do not use inferior gas.
3, be like drive a vehicle of long-term urban district, want to undertake drive a vehicle of high speed of freeway Sunday run regularly.
4, avoid long idle fast drive a vehicle.
4, case is answered put
1, breakdown phenomenon
The primary failure of this car engine is engine oil has been used up fast overmuch. Average every travel 1000 kilometers, engine oil is used up control in 1L, exceed normal range. And engine does not have leakage circumstance.
2, disassemble examination
Disassemble after engine, we saw the many generation that accumulate carbon. Inquiry car advocate, car advocate state oneself use common mineral engine oil at ordinary times, majority changes engine oil cycle is in 6000-7000 kilometer. So the generation of judgement accumulating carbon and engine oil maintain cycle is too long have immediate concern. Disassemble after engine, micrometer of use internal diameter checks crock wall space and ovality.
3, how to measure air cylinder ovality
Above all we should use internal diameter micrometer to undertake metrical. Before measure we want to will express desired result to arrive initiative 0 positions. And should assure the sensitivity of internal diameter micrometer and accuracy want tall. The unit that measures air cylinder after all is in 0 a few millimeter, a bit deviation meets those who affect us to measure an outcome.
4, measure the place
Internal diameter micrometer wants from on reach next metrical undertaking. Measure air cylinder from on to the dimension deviation below, ovality mark fiducial value is in 0.05mm less than.
5, measure an outcome
Achieved 0.06mm left and right sides through measuring the cylinder ovality of this car, namely we often say " 6 " , exceeded mark fiducial value, this also is the main reason of engine oil consume.
6, other influence
Arose to wear away besides cylinder wall beyond, also gathered to accumulate carbon in great quantities all round the valve of this car. These accumulate carbon to be able to cause menace to spiracle oil seal as much, produce the problem that engine oil uses up thereby.
Write finally:
Through this case we see clearly, the primary failure of this car is the engine oil that attaint of spiracle oil seal and cylinder wall ellipse bring about is used up. And investigate its reason, of these spare partses wearing away is with the car advocate daily attention not having immediate concern. Using mineral engine oil is not to be no good, want to control cycle of nice oil change however, prevent the engine oil be no longer in force that extended active duty brings about. Besides, resembling air filter core also is the key that we maintain etc, did you learn?
