Valve Body: Service and Repair

REMOVAL
1. Site vehicle on a four post ramp [hoist].
2. Disconnect battery negative lead.
3. Raise vehicle.





4. Drain oil and install plug with new seal.
5. Detach heat shield at front exhaust pipe to manifold.
6. Disconnect electrical connector from oxygen sensors.
7. Remove catalytic converter assembly.
8. Remove chassis cross-member from under gearbox.
9. Disconnect dipstick tube at oil pan.
- Loosen securing bolt at bell housing and move dipstick aside.
10. Remove clamps securing oil pan.
- Note their locations for install and withdraw oil pan.
11. Remove gasket and clean gasket mating faces.
12. Remove securing screws and detach oil screen and suction pipe, taking care to retain suction pipe spacer, discard O-ring seal.





13. Remove securing screws and detach control unit from casing.

Oil Seal Replacement





14. Remove circlips and springs from control unit.
- Note locations of long and short springs.
15. Using seal replacer/remover LST1 13 remove and discard seals.
16. Clean control unit, springs and circilps and check that they are satisfactory for further use.
17. Install new seals to control unit using LST1 13, ensure seals are fully seated.
18. Install springs to locations noted during removal and secure with circlips.

INSTALLATION
19. Install control unit to gearbox, locating throttle valve behind cam and engaging selector quadrant with manual valve.
20. Loosely install securing screws.
21. Manually open throttle linkage to full throttle position.





22. Engage special tool LST 109 between control unit and throttle valve pin.
23. Set correct distance between control unit and cam.
24. Remove special tool and close throttle.
25. Install new O-ring seals to oil screen using light grease to aid assembly.
26. Install oil screen and suction pipe with spacer and secure with three bolts.
27. Install oil pan using a new gasket.
28. Connect dipstick tube to oil pan and tighten bolt at bell housing.
29. Install chassis cross member.
30. Install catalytic converter assembly
31. Connect electrical connector to oxygen sensors:
32. Connect heat shield front pipe to manifold.
33. Connect battery.
34. Refill gearbox using Dexron IID ATF.
- Use dipstick to check level after transmission oil is at normal operating temperature.