Replacing Pump Seals
REMOVE1. Remove the transmission/transfer case assembly.
2. Place the transmission on the bench and remove the torque converter using torque converter handles 12G1501, taking care not to damage the converter/oil pump housing oil seal.
3. Remove the twelve hexagonal bolts (inner ring pattern).
4. Remove bellhousing and pump assembly from transmission case and discard the gasket.
5. Remove the eight hexagonal bolts on the rear of the pump.
6. Screw in two of the bolts, diagonally opposite each other, tap lightly using a soft headed mallet; this will free the pump assembly from the intermediate plate.
7. Remove the shaft sealing ring and O-ring from the pump housing and discard.
REFIT
1. Using oil seal replacer LST108 fit the shaft seal ring into the pump housing.
2. Fit the O-ring onto the circumference of the pump housing.
3. Align the dowel with its hole in the intermediate plate and press the pump housing home.
4. Secure the pump housing to the intermediate plate using the eight hexagonal bolts and tighten to 10 Nm (7 ft lbs).
5. Place the bellhousing and intermediate plate assembly on the bench, front face up. Using the oil pump rotation sleeve LST111, check that the pump gears rotate freely.
6. Before replacing the intermediate plate and bellhousing assembly, check that the thrust washer and axle cage are seated on the A clutch housing.
7. Place the gasket and disc washer onto the bellhousing and intermediate plate assembly using a light grease or Petroleum Jelly.
8. Fit bellhousing and intermediate plate assembly onto gearcase and secure with the twelve hexagonal bolts tightened to 46 Nm (34 ft lbs).
9. Place the end float gauge LST111 onto the pump housing and check that the axial play is between 0.2-0.4 mm (0.008-0.016 in). If the end float is excessive or tight, replace existing washer, situated at the rear of the intermediate plate, with a suitable washer to give the required end float as stated above.
10. Refit torque converter into housing using torque converter handles 12G1501, checking 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.
11. Refit the transmission/transfer case assembly.