Special Tools

J 21368  Pump Body Cover Alignment Band

Fig 1: Inspecting Oil Pump Bushing For Wear
Courtesy of GENERAL MOTORS CORP.
1. Inspect the fluid pump bushing (215) for wear - not serviceable.
Fig 2: View Of Oil Pump Components
Courtesy of GENERAL MOTORS CORP.
2. Inspect the fluid pump parts for the following:
   • Worn, scored, or gouged pump slide
   • Cracks, wear, or damage to the rotor or vanes
   • Cuts or damage to the seals
   • Broken priming springs
Fig 3: Identifying Oil Pump Housing Inspection Areas
Courtesy of GENERAL MOTORS CORP.
3. Inspect the fluid pump housing for the following:
   • Porosity
   • Interconnected oil passages
   • Damaged machined surfaces
Fig 4: Locating Oil Pump Valves
Courtesy of GENERAL MOTORS CORP.
4. Inspect the valves (207, 210, 235) and springs (208, 209, 234, 238, 219) for the following:
   • Nicks or burrs on the valves
   • Worn, distorted, or cracked springs
Fig 5: TCC Control Valve, Retainer & Spring
Courtesy of GENERAL MOTORS CORP.
5. Install the TCC control valve (235) and the TCC control valve spring (234).
6. Install the TCC control valve spring retainer (204).
Fig 6: Identifying Pressure Relief Valve & Spring
Courtesy of GENERAL MOTORS CORP.
7. Install the pressure relief ball (239) and spring (238).
8. Install the pressure valve spring retainer (211).
Fig 7: View Of Pump Cover Screen
Courtesy of GENERAL MOTORS CORP.
9. Install the fluid pump cover seal (212) onto the new pump cover screen (213).
10. Install the fluid pump cover screen (213).
11. Install the fluid pump cover screen pin (211).
Fig 8: Identifying Pressure Regulator Valve & Line Boost Valve
Courtesy of GENERAL MOTORS CORP.
12. Install the pressure regulator valve (210), the pressure regulator valve spring (209), and the line boost valve spring (208).
13. Install the line boost valve bushing seal (205) onto the bushing (206).
14. Install the line boost valve (207) and the bushing (206).
15. Install the line boost valve bushing retainer (204).
Fig 9: Locating Reverse Clutch Housing Fluid Seal Rings
Courtesy of GENERAL MOTORS CORP.
16. Install the reverse clutch housing fluid seal rings (200).
Fig 10: Measuring Gage Bar To Pump Body Gap
Courtesy of GENERAL MOTORS CORP.
17. Measure the distance from the bottom of the gage bar to the fluid pump body. Refer to Transmission Fluid Pump Specifications .
18. Measure the thickness of pump slide (216).
19. Select the correct size. Refer to Transmission Fluid Pump Specifications .
20. Measure the thickness of the pump rotor (223).
21. Select the correct size rotor. Refer to Transmission Fluid Pump Specifications .
Fig 11: Identifying Fluid Pump Components
Courtesy of GENERAL MOTORS CORP.
22. Install the fluid pump support (217), the slide seal (218) and the fluid pump slide rings (220), and the fluid pump slide O-ring seal (242) onto the pump slide (216).
23. Install the slide pin (231).
NOTE: The fluid pump slide (216) is selective.
24. Install the fluid pump slide (216).
25. Using a suitable tool install the slide spring (219).
Fig 12: Locating Fluid Pump Vane Ring
Courtesy of GENERAL MOTORS CORP.
26. Install the fluid pump vane ring (225).
27. Install the fluid pump rotor guide (224).
NOTE: The fluid pump rotor (223) is selective.
28. Install the fluid pump rotor (223).
29. Install the fluid pump vanes (222).
30. Install the fluid pump vane ring (221).
Fig 13: View Of Pump Cover Housing
Courtesy of GENERAL MOTORS CORP.
31. Install the fluid pump cover housing (202) onto the converter housing (224).
Fig 14: Identifying J 21368
Courtesy of GENERAL MOTORS CORP.
32. Install J 21368  and tighten.
Fig 15: Identifying Oil Pump Housing Bolts
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fastener Caution .
33. Install the fluid pump housing retaining bolts (240, 241). Tighten the bolts (240) to 11 N.m (8 lb ft) and bolts (241) to 22 N.m (16 lb ft).
34. Remove J 21368  .