OIL PUMP COVER AND BODY ASSEMBLE Tools Required

J 21368 Pump Body and Cover Alignment Band. See Special Tools.

Assembly Procedure

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OIL PUMP COVER AND BODY ASSEMBLE Tools Required

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 399: View Of Oil Pump Cover & Oil Pump Body Courtesy of GENERAL MOTORS CORP.

1. Place the oil pump cover onto the oil pump body and put stator shaft through a hole in the bench.

2. Install the pump cover bolts (233) finger tight only.

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 400: Identifying Pump Cover Bolts Courtesy of GENERAL MOTORS CORP.

3. Install the J 21368 . See Special Tools.

NOTE:

Refer to FASTENER NOTICE

4. Tighten the pump cover bolts (233).

5. Remove the J 21368 . See Special Tools.

OIL PUMP ASSEMBLY INSTALLATION Tools Required

• J 25025-1 Dial Indicator Mounting Post

• J 39855 Stator Shaft Seal Installer. See Special Tools.

Installation Procedure

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 401: Installing J 25025-1 Courtesy of GENERAL MOTORS CORP.

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 402: View Of 39855-2

Courtesy of GENERAL MOTORS CORP.

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

Fig. 403: Identifying Drum Thrust Washer Courtesy of GENERAL MOTORS CORP.

3. Install the pump to drum thrust washer (601).

4. Use J 36850 or equivalent to retain the washer to the pump.

5. For pump assemblies with an ISS hole plug (248), lubricate a NEW O-ring (249) with transmission fluid and install onto the ISS hole plug (248).

6. Install the ISS hole plug (248) into the ISS hole and align with the mounting hole.

NOTE: Refer to FASTENER NOTICE.

7. Install the bolt (247).

Tighten: Tighten the bolt to 9-11 N. m (6.6-8.1 lb ft).

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 404: View Of Pump Cover, Case & Gasket Courtesy of GENERAL MOTORS CORP.

8. 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.

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

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 405: View Of J 25025-1

Courtesy of GENERAL MOTORS CORP.

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

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

11. Remove the J 25025-1 .

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 406: Locating Pump To Case Bolts & O-Ring Seals Courtesy of GENERAL MOTORS CORP.

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

TRANSMISSION END PLAY CHECK Tools Required

• J 25022 End Play Fixture Adapter. See Special Tools.

• J 34725 End Play Checking Adapter. See Special Tools.

• J 43205 End Play Fixture Adapter (300 mm). See Special Tools.

• J 24773-A Oil Pump Remover. See Special Tools.

• J 8001 Dial Indicator Set

• J 25025-7A Dial Indicator Post. See Special Tools.

Check Procedure

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 407: Identifying Different End Play Fixture Adapters Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Torque converter size is model dependent.

1. Install an end play fixture adapter.

• Use J 25022 for a 245 mm and 258 mm turbine shaft (1). See Special Tools.

• Use J 34725 for a 298 mm turbine shaft (2). See Special Tools.

• Use J 43205 for a 300 mm turbine shaft (3). See Special Tools.

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 408: Identifying J 24773-A Courtesy of GENERAL MOTORS CORP.

J 24773 - A

J 8001

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 409: Installing J 25025-7A With J 8001 Courtesy of GENERAL MOTORS CORP.

3. Remove an oil pump bolt.

4. Install J 25025-7A (or a 278 mm or 11 in bolt) and lock nut. See Special Tools.

5. Install J 8001 .

OIL PUMP COVER AND BODY ASSEMBLE Tools Required

Fig. 410: Installing J 8001 & Setting It To Zero Courtesy of GENERAL MOTORS CORP.

6. Set the J 8001 to zero.

7. Pull up on J 24773-A. See Special Tools.

Proper end play should be 0.13-0.92 mm (0.005-0.036 in).

8. The selective washer (616), which controls the end play, is located between the input housing (621) and the thrust bearing (615) on the oil pump hub.

If the end play measurement is incorrect, refer to the table End Play Specifications. Choose a new selective washer (616) based on the original selective washer and the information contained in the table.

If the dial indicator shows no end play, the selective washer (616) and thrust bearing (615) may have been misassembled.

9. Correct the end play by changing the selective washer (616).

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