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Home >> Hummer >> 2008 >> H3 L5-3.7L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Overhaul >> Oil Pump Assembly Installation
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Oil Pump Assembly Installation



Oil Pump Assembly Installation


Special Tools
* J 25025-1 Dial Indicator Mounting Post
* J 36850 Transjel Lubricant
* J 39855 Stator Shaft Seal Installer






1. Install the J 25025-1 .




2. Remove the J 39855-2 which is part of kit J 39855 .




3. Install the pump to drum thrust washer (601).
4. Use J 36850 or equivalent to retain the washer to the pump.




5. Install the pump cover to case gasket (6).

Important: The oil pump to case seal is installed after the oil pump assembly, during torque converter installation. Refer to Converter Housing Installation (Converter Housing Installation) .


6. Install the oil pump assembly (4) into the case and align all holes properly.





Notice: Refer to Fastener Notice (Fastener Notice) .


Important: The pump to case bolt O-ring seals (3) must be replaced.


7. Install the pump to case bolts (2) with new O-ring seals (3).

Tighten the bolts to 29 N.m (21 lb ft).

8. Remove the J 25025-1 .




9. Install the remaining pump to case bolts (2) and O-ring seals (3), in the holes where the J 25025-1 were.

Tighten the bolts to 29 N.m (21 lb ft).



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