Damage form of oil pump

1, oil pump gear or blade broken.

The causes are foreign body entry, fatigue fracture, injury during assembly or poor material quality.

2, pump shell crack.

The reason is also due to foreign body entry, fatigue fracture, injury during assembly or poor material quality.

3. Positioning sleeve friction loss of rotor.

The positioning sleeve of the rotor is directly connected with the torque converter housing. In case of sliding, the rotor cannot be driven and the oil pump cannot work. Its reason is to use time to grow commonly and attrition.

4, blade pump return spring broken or elastic.

The cause is fatigue fracture, injury during assembly or poor materials.

5. Transmission shaft of oil pump is damaged.

Most of the damage is due to fatigue fracture, injury during assembly or poor materials.

6, blade pump blade hair clip.

The reason is that the clearance between blade and rotor is too small and the oil is too dirty.

7. Oil pump friction damage.

Observe whether the friction surface is smooth, if uneven, it may be caused by impurities in the oil; If the surface is smooth, the cause is natural wear and tear.

8. Oil pump leakage.

The cause is a damaged gasket or sealing ring.