在使用起重机、推土机、汽车的过程中,我们常发现内燃机的气缸体和气缸盖有下列故障: (1)气缸体平面不平整,使内燃机气缸内的可燃混合气泄漏,造成内燃机功率下降。 (2)气缸体和气缸盖发生裂缝,导致漏水或漏气。以上故障发生后,不少单位为了省事,采取弃旧换新的措施,实在可惜。也有些单位凑合使用,造成内燃机功率下降、油耗增 In the process of using cranes, bulldozers and automobiles, we often find that the cylinder block and cylinder head of the internal combustion engine have the following faults: (1) The flat surface of the cylinder block leaks the combustible mixture gas in the cylinder of the internal combustion engine, causing the power of the internal combustion engine to drop. (2) There is a crack in the cylinder block and cylinder head, leading to water leakage or air leakage. After the above failures, many units have taken measures to abandon the old ones to save trouble in order to save trouble. What a pity. Some units make improvisation, resulting in decreased internal combustion engine power, fuel consumption increased