Oil Pump Assembly Installation

Special Tools

• J 25025-1:  Dial Indicator Mounting Post
• J 36850:  Transjel Lubricant
• J 39855:  Stator Shaft Seal Installer

Fig 1: Installing J 25025-1
Courtesy of GENERAL MOTORS CORP.
1. Install the J 25025-1:  mounting post.
Fig 2: View Of 39855-2
Courtesy of GENERAL MOTORS CORP.
2. Remove the J 39855-2 which is part of kit J 39855:  seal installer.
Fig 3: View Of Pump To Drum Thrust Washer
Courtesy of GENERAL MOTORS CORP.
3. Install the pump to drum thrust washer (601).
4. Use J 36850:  transjel lubricant or equivalent to retain the washer to the pump.
Fig 4: View Of Pump Cover, Case & Gasket
Courtesy of GENERAL MOTORS CORP.
5. Install the pump cover to case gasket (6).
NOTE: The oil pump to case seal is installed after the oil pump assembly, during torque converter installation. Refer to Converter Housing Installation .
6. Install the oil pump assembly (4) into the case and align all holes properly.
Fig 5: View Of J 25025-1
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fastener Caution .
NOTE: 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:  mounting post.
Fig 6: Locating Pump To Case Bolts & O-Ring Seals
Courtesy of GENERAL MOTORS CORP.
9. Install the remaining pump to case bolts (2) and O-ring seals (3), in the holes where the J 25025-1:  mounting post were. Tighten the bolts to 29 N.m (21 lb ft).