Disassembly Note
Disassembly Note1. Remove the oil pump gasket and oil pump seal rings.
1) Remove and discard the oil pump gasket.
2) Remove and discard the oil pump seal ring (square cut).
2. Remove the oil pump support seal ring.
3. Inspect the oil pump support needle bearings and cage for scored or missing rollers and alignment of lube holes.
4. Remove the oil pump housing.
1) Remove the six oil pump screws with Torx(R) 40 wrench.
2) Remove the oil pump support and gear and the oil pump adapter plate.
5. Remove the oil pump gears and front pump adapter plate.
Note:
^ A rough casting on the pump surface crescent is not a flaw.
^ The fluid pump gears are part of the pump assembly and are not serviced separately.
6. Remove the drive gear O-ring and discard. Inspect the oil pump gears for cracks and scoring. Replace front pump support and gear assembly if damaged.
7. Inspect front pump.
1) Inspect the front pump support gear pockets for scoring and wear.
2) Clean and inspect the front and rear input shaft bushings.
8. Inspect the oil pump adapter plate for scoring and wear.
9. Inspect the oil pump-to-converter housing bushing and converter hub-to-converter housing seal. Replace converter housing assembly if necessary.
Note: The oil pump-to-converter housing bushing is not serviced separately. If service is required, the converter housing must be replaced.
10. Inspect the coast clutch feed hole for blockage or damage.
1) Rotate the pump bearing and locate the coast clutch feed hole.
2) Inspect the coast clutch feed hole for blockage or damage.
11. Using Seal Remover 307-001 (TOOL-1175-AC) or equivalent (1), remove the converter hub-to-converter housing seal (2).
