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气缸的密封程度一般采用气缸压力表测量,但是气缸压力表却难以诊断导致气缸不密封的具体原因。利用压缩空气可迅速检测出漏气部位。 1.打开散热器盖,卸下空气滤清器,拆下各缸的喷油器(或火花塞); 2.缓慢摇转曲轴,使被检测缸处于压缩上止点的位置; 3.将自制专用接头(可利用报废喷油器或火花塞加工,并焊出一根铁管,使之与压缩空气橡胶管连接)拧入喷油器(或火花塞)孔,并通入0.8～1.0MPa的压缩空气,
Cylinder seal is generally measured by the cylinder pressure gauge, but the cylinder pressure gauge is difficult to diagnose the specific reasons leading to the cylinder is not sealed. The use of compressed air can quickly detect the leak site. 1. Open the radiator cover, remove the air filter, remove the fuel injector (or spark plug) of each cylinder; 2. Slowly crank the crankshaft so that the cylinder to be tested is in the compression top dead center position; Special connector (can use scrap injector or spark plug processing, and welding out an iron pipe, make it with the compressed air rubber tube) screwed into the injector (or spark plug) hole, and pass 0.8 ~ 1.0MPa compression air,