1.故障现象活塞敲缸多发生在柴油机严重磨损或大修后不久。常见的敲缸有5种类型:冷启动后发出清脆而有节奏的金属敲击声;热态加速时发出较重敲缸声,排气管冒黑烟,并时有“放炮”声或向外喷火,柴油机机体过热;冷、热态均有敲缸声,冷态轻、热态重;一缸敲缸,断油后消失;多缸异响,响声杂乱。 1. Symptoms Pistons knock cylinder occurred in diesel serious wear or overhaul soon. There are 5 types of common knocking cylinders: crisp and rhythmic metal percussion sounds after cold start, heavier knocking cylinder sounds when exothermic state accelerates, black smokes exhaust pipe and sometimes “squirting” sound Or out fire, diesel engine overheating; cold, hot state have knocking sound, cold light, hot weight; knock cylinder cylinder, off the oil disappears;