Overhaul car pumps six steps to ensure smooth cycle

How to cool the car engine is a very important step to ensure the life of the engine when the car engine is used for a long time, and the engine pump has such an important function. Therefore, the majority of car owners in the routine maintenance of the time, do not miss the pump overhaul, Xiaobian now for the majority of users introduced six steps to repair the pump to ensure that the pump can be smoothly circulated. 1, check the pump body and pulley wear and damage, if necessary, should be replaced. Check the pump shaft bending, journal wear, shaft thread damage. Check the blade on the impeller broken, shaft hole wear is serious. Check the water seal and bakelite gasket wear, such as more than the use limit should be replaced with new pieces. Check the bearing wear, available table measurement bearing clearance, such as more than 0.10mm, you should replace the new bearing. 2, the pump removed, can be decomposed in order. Parts should be decomposed after cleaning, and then one by one check to see if there are cracks, damage and wear and other defects, if serious defects should be replaced. 3, water seal and seat repair: water seal, such as wear from the groove, available emery cloth, such as wear too much should be replaced; water seal if any rough scratches, flat reamers or lathe repair. In the overhaul should be replaced when the new water seal components. 4, in the pump body with the following injuries allow welding repair: the length of 30mm or less, does not extend into the bearing hole cracks; flange with the cylinder cover has broken parts; oil seal seat hole damage. The pump shaft bending shall not exceed 0.05mm, otherwise it should be replaced. Impeller blade damage should be replaced. Pump shaft aperture wear serious replacement or set repair. 5, check whether the pump bearing rotation is flexible or abnormal sound, if there is a bearing problem, should be replaced. 6, the pump assembly is good, hand rotation, the pump shaft should be no stagnation, the impeller and the pump housing should not rub rub. Then check the pump displacement, if there is a problem, you should check the reasons and remove. If the pump fails, the coolant will not reach the appropriate place, its performance will not be effectively played i, the final impact on the work of the engine. Therefore, we must strengthen the inspection of the pump.