Transmission Oil Pump Cover Disassemble

Caution: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.





1. Remove the reverse boost valve bushing retainer ring (226).
2. Remove the pressure regulator boost valve bushing (227).
3. Remove the reverse boost valve (228).
4. Remove the pressure regulator valve spring retainer (229).
5. Remove the pressure regulator valve inner (238) and outer springs (230).
6. Remove the pressure regulator valve (231).
7. Remove the pressure regulator valve bore plug (232).





8. Remove the pressure regulator valve bore plug pin (211).
9. Inspect the pressure regulator valve components for chips, burrs, distortion, plugged oil passages.
10. Remove the TCC regulator-valve bore plug pin (211).
11. Remove the TCC regulator valve bore plug (212).
12. Remove the TCC regulator valve spring (213).
13. Remove the TCC regulator valve (214).
14. Inspect the TCC regulator valve components for chips, burrs, and distortion.





15. Remove the TCC control valve spring pin (215).
16. Remove the TCC control valve spring (216).
17. Remove the TCC control valve (217).
18. Inspect the TCC control valve components for chips, burrs, and distortion.





19. Remove the TCC shift valve bore plug retainer ring (221).
20. Remove the TCC shift valve bore plug (232).
21. Remove the TCC shift valve (223).
22. Remove the TCC shift valve spring (224).
23. Remove the TCC shift valve spring seat (225).
24. Remove the TCC shift valve spring seat pin (211)
25. Inspect the TCC shift valve components for chips, burrs, and distortion.
26. Inspect the oil pump cover breather hole (234) for blockage.
27. Inspect the stator shaft splines for damage.
28. inspect the stator shaft bushings for wear, and galling.





29. Remove the overrun clutch housing oil seal rings (219).
30. Inspect the overrun clutch housing oil ring grooves for nicks, burrs, and debris.