Rubber o-rings waterproof effect

Waterproof function 2018 - rubber o-rings 11 - 18 jacket waterproof circle for a rubber o-rings, cross section is round more, compared with skeleton oil seal, simple structure, both frameless, nor since the spring, relying on its suppleness and elasticity of rubber airtight. Improper installation, can make the jacket in a large number of cooling water leaking into the crankcase, causing oil metamorphism, lubrication quality, increased engine wear of moving parts, and even produce the major fault, such as tile burning holding shaft so the installation should pay attention to the following matters: (when resistance hydrosphere 1) If waterproof laps to go, or cylinder liner water seal groove is too deep, waterproof circle arc higher than that of load cylinder liner water seal tank after failed to a certain height, at this point, can be in the bottom of the water seal tank and put a layer of asbestos rope, coated with water resistant calcium base grease, then waterproof trap into the water seal tank, then put the liner pressure people body hole. ( 2) If the waterproof ring is too thick or cylinder liner water seal tank too shallow, curved surface too much higher after loading, the liner installation difficulties, not only will be crushed with rubber seal even smash cylinder liner, emery cloth uniform grinding rubber seal are available, and until it is put into a water seal tank after right projection. Then in the rubber ring surface coated with grease, can press cylinder liner into the body hole. ( 3) If the waterproof coil thickness unevenness or water seal tank two-tone, rubber ring the bulging height not divide evenly, with the cylinder liner is a question of rubber ring, should be carefully checked and the problem of water seal tank, there will be problems of parts replaced. ( 4) In front of the rubber waterproof trap into the cylinder liner water seal tank, rubber ring and water seal tank should be clean, and avoid impurity dirt into the installation. After the rubber ring is installed on the cylinder liner, carefully check whether there is the phenomenon such as twist Ning groove. Carefully before the installation of cylinder liner, remove on cylinder body, under the dirt on the surface of the bearing hole, and the bearing hole of the surface coating a layer of oil, and then press cylinder liner slowly into the hole.