16100-E0401 H07CT Engine Water Pump For HINO Diesel Engines Parts

Water pump heating

Cause: bearing damage; The clearance of rolling bearing or bracket cover is too small; The pump shaft is bent or the two shafts are not concentric; The tape is too tight; Lack of oil or poor oil quality; The balance hole on the impeller is blocked, and the impeller loses balance, increasing the thrust to one side. Troubleshooting: replace the bearing; Remove the rear cover and install a gasket between the bracket and the bearing seat; Investigate the pump shaft or adjust the concentricity of two shafts; Adjust the tape tightness properly; Fill with clean grease, which accounts for about 60% of the clearance in the bearing; Remove the blockage from the balance hole.

5. The tape on the water pump should also be removed, washed with water and dried in the light. Do not put the tape in a dark and damp place. The adhesive tape of the water pump must not be stained with oil, let alone coated with something sticky.

6. Carefully check whether there are cracks on the impeller and whether the impeller is loose on the bearing. If there are cracks and looseness, repair them in time. If there is mud on the pump impeller, clean it up