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1.活塞咬 (1)原因:①冷却水腔内水垢太厚,活塞过热膨胀咬合。②活塞环开口或侧向间隙太小,热机后活塞环无膨胀余地,咬合或断裂。 (2)防止措施:①按期彻底清洗水腔水垢。②检查活塞环开口及侧向间隙,旧机因排气温度较高,间隙可考虑适当加大。 2.主轴承或连杆瓦咬 (1)原因:①吸油滤网堵塞引起机油量不够或断油。②曲轴轴向间隙太小或太大,热机后膨胀无
1. Piston bite (1) reasons: ① cooling water cavity is too thick, the piston overheating expansion bite. ② piston ring opening or lateral clearance is too small, after the heat engine piston ring no room for expansion, occlusion or fracture. (2) Preventive measures: ① Periodic wash water cavity scale. ② Check the piston ring openings and lateral clearance, the old machine due to the higher exhaust temperature, the gap may be considered appropriate to increase. 2 main bearings or connecting rod bite (1) reasons: ① blockage caused by suction filter oil is not enough or off the oil. ② Crankshaft axial clearance is too small or too large, no expansion after heat engine