Part 5
Part 5 of 5WARNING: Before using an air line ensure all necessary safety precautions are taken to prevent personal injury, i.e., safety glasses, protective clothing etc.
Checking Axial Clearance
1. Fit LST111 end-float gauge onto the output shaft, making sure the outer shaft engages into the pump.
2. Pressing the output shaft towards the rear of the transmission and tighten the three screws on the gauge.
3. Measure the clearance and note.
4. Now secure the remaining screw which retains the outer shaft to the inner collar.
5. Pull the whole assembly away from the bell housing, measure the clearance and note.
6. Subtract the first measurement from the second to obtain the axial clearance.
Extension Housing and Governor - Overhaul
1. Remove the two bolts using Torx bit TX27 retaining the parking wheel.
2. Remove the clip and counterweight from inside the governor hub.
3. Remove the two bolts from the top of the governor hub which releases the housing and discard.
4. Release the retaining clip and discard.
5. Remove the pin, spring, piston and weight from the governor housing.
6. Clean and inspect all parts for damage.
NOTE: Replace any part which may be damaged.
7. Remove the seal ring from the extension housing.
8. Clean and inspect the extension housing for damage.
NOTE: If the dowels are damaged replace the dowels only. If extension casing is damaged replace the case and dowels.
9. Inspect and clean extension shaft and bolt for damage, replace if necessary.
Assemble
10. Fit the pin, spring and piston to the governor housing.
11. Fit the weight on the top of the governor housing and secure with a new retaining clip.
12. Fit the counterweight into the governor hub and secure with the clip.
13. Fit the parking wheel and secure with two bolts using Torx bit TX27 to 10 Nm (7 ft lbs).
14. Fit the governor housing assembly to the hub and secure with two bolts using Torx bit TX27 to 10 Nm (7 ft lbs).
15. Turn transmission over in holding fixture so that the rear of the box is uppermost.
16. Fit the governor/parking wheel assembly onto the output shaft and press the assembly until fully seated.
NOTE: To avoid damage to the O-ring use a Petroleum Jelly. Ensure the seal rings are snapped together and are seated correctly.
17. Fit the extension shaft and retaining bolt using a new O-ring.
18. Fit a new seal to the extension housing using the rear oil seal replacer LST108.
19. Fit a new gasket onto the rear of the transmission and fit the extension housing taking care not to damage the seal on assembly.
20. Secure the extension housing using the nine bolts to 23 Nm (17 ft lbs).
Refit Valve Body, Oil Pan and Torque Converter
1. Position the transmission so that the bottom is uppermost.
2. Insert the eight sealing bushes into the oil feed holes using the valve body inlet oil seal remover/replacer LST113.
3. As a test to check the function of the clutch and brake assemblies, insert an air gun into the oil feed holes and exert a pressure of 5 to 6 bar (72.5 to 87 psi).
4. Fit the four short springs into the oil feed holes at the front of the transmission and four long springs into the oil feed holes at the rear of the transmission.
5. Fit the eight circlips to retain the springs and sealing bushes.
6. Fit the restrictor, spring and circlip using LST113 into the hole adjacent to the four rear oil feed holes.
7. Place the valve body ensuring the selector shaft locates into the gear shift fork and fit the thirteen bolts loosely by hand.
8. Place the selector linkage setting gauge LST109 in position and gently press the valve body in the direction shown and tighten all thirteen bolts using Torx bit TX27 to 8 Nm (6 ft lbs).
9. Remove the setting gauge and fit the suction hose and O-ring to new oil screen.
10. Fit the new oil screen with new O-ring and secure with the three bolts using Torx bit TX27 to 8 Nm (6 ft lbs).
11. Fit the oil pan using a new gasket.
12. Secure the oil pan with the six retaining plates (two straight and four corner plates), tighten to 8 Nm (6 ft lbs).
13. Fit oil pan plug with a new seal.
14. Turn the transmission around until it is horizontal.
15. Using the torque converter remove/refit handles 18G1501, install the torque converter into the transmission.
NOTE: Check that the dimension from the converter fixing bolt boss to the converter housing face is 50 mm (1.96 in). If this dimension is achieved the converter is properly seated in the housing.
16. Refit the transmission to the vehicle.
17. Refill the transmission with the correct quantity of recommended fluid.
18. Reconnect the battery ground terminal.
19. Ensuring that the parkbrake is applied, select neutral gear in the main transmission and start the engine. While the vehicle is idling in neutral, select all forward and reverse gears and return the gear selector to neutral. Check the fluid level in the transmission, if necessary, top up to between the maximum and minimum levels on the dipstick. Recheck the fluid level.