How to repair the pump failure

Maintenance method of automobile water pump fault;

1. After the pump is taken out, it can be decomposed in turn. After disassembly, the parts should be cleaned and checked one by one for cracks, damage, wear and other defects. If there are serious defects, it should be replaced.

2. If the water seal is worn, it can be smoothed with emery cloth. If there is too much wear, it should be replaced. If the water seal seat has rough scratches, it can be repaired with a flat reamer or on a lathe. During the overhaul, a new water seal assembly should be replaced.

3. When the pump body is damaged, welding repair is allowed;

4. Check whether the water pump bearing rotates flexibly or has abnormal noise. If there is any problem, replace the bearing.

5. After the water pump is assembled, turn it by hand. The pump shaft should be free from sticking, and there should be no friction between the impeller and the pump shell. Then check the pump displacement. If there is any problem, check the reason and eliminate it. Million car purchase subsidy