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Home >> Hummer >> 2006 >> H3 L5-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Overhaul >> 67. Oil Pump Assembly Installation
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67. Oil Pump Assembly Installation



Oil Pump Assembly Installation
^ Tools Required
- J 25025-1 Dial Indicator Mounting Post
- 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).

6. Important: Ensure ISS wiring is not pinched or caught on the case or pumps surface or mating parts.

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

Install the oil pump assembly (4) into the case and align all holes properly. For models with input speed sensor (ISS) feed the ISS connector into the transmission case so the connector will be visable in case opening as shown.





7. Notice:

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

Install the pump to case bolts (2) with new O-ring seals (3).
^ Tighten the bolts to 29 Nm (21 ft. lbs.).
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 Nm (21 ft. lbs.).
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