Fluid Pump: Service and Repair

Removing and Installing Primary Pump




- Remove torque converter. Service and Repair
- Take off converter bell housing with connecting plate.
Installation:
- Tightening torque: Mechanical Specifications




Installation:
- Mount angled washer (1) with collar facing needle bearing (2) on input shaft, Hold thrust washer (3) on converter bell housing with grease.
- Replace gasket (4)




- Unscrew primary pump on converter bell housing.
- Loosen two bolts opposite each other by only several turns
- Loosen primary pump on converter bell housing with several light knocks.
Installation:
- Tightening torque: Mechanical Specifications




- Remove primary pump
- Centering pin (5) must engage in bore (6).




Installation:
Primary pump, consisting of pump body (7), hollow gear (8) and impeller (9), may only be replaced as an assembly.
- Check O-ring (10), replacing if necessary
IMPORTANT!
- Install hollow gear (8) and impeller (9) that punch marks face up.




- Check radial play between driven gear and pump body, while turning gear 360°.




- Check axial pawl of both gears to face surface with a precision depth micrometer




- Check running of primary pump with Special Tool 24 3 140