1、活塞頂燒穿、活塞局部燒蝕。這可能由于噴油器出現(xiàn)故障導(dǎo)致的，或者點(diǎn)火過(guò)早，再就是發(fā)動(dòng)機(jī)燃燒壓力過(guò)大，超負(fù)荷運(yùn)行。
Burn the piston crown, piston local ablation. This may be due to faulty injector cause, or premature ignition, then there are the engine combustion pressure, overload operation.
2、活塞傾斜運(yùn)行。這是因?yàn)榍B桿機(jī)構(gòu)中的個(gè)別件出現(xiàn)變形、扭曲、不均勻磨損，或曲軸竄動(dòng)。
Pistons tilt operation. This is because the crank linkage of individual pieces of deformed, distorted, uneven wear, or crank ran.
3、活塞頭部損傷。這是因?yàn)闈?rùn)滑不良或機(jī)油品質(zhì)不好，再就是可能進(jìn)氣系統(tǒng)出現(xiàn)故障，進(jìn)入的空氣不潔。
Piston head injury. This is bad because of poor lubrication or oil quality, then there might intake system fails, the incoming air is dirty.
4、氣門(mén)頂撞活塞。這是因?yàn)榕錃庀辔晃蓙y，或氣門(mén)間隙調(diào)整不正確。
Contradict the valve piston. This is because with the gas phase disorder, or incorrect valve clearance adjustment.
5、銷(xiāo)孔內(nèi)側(cè)壓裂。這是因?yàn)楣┯土窟^(guò)多，點(diǎn)火或供油提前角過(guò)大；不適宜的燃油；增壓壓力過(guò)高；超負(fù)荷運(yùn)行等因素引起過(guò)大機(jī)械負(fù)荷將銷(xiāo)孔壓裂。
Inside of the pin hole fracturing. This is because the amount of excess fuel, ignition or fuel supply advance angle is too large; inappropriate fuel; boost pressure is too high; overload operation and other factors will cause excessive mechanical load pin hole fracturing.

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