Converter Housing and Fluid Pump

Converter Housing and Fluid Pump













Disassembly

1. Remove the fluid pump gasket and fluid pump seal rings.

1. Remove and discard the fluid pump gasket.

2. Remove and discard the fluid pump seal ring (square cut).





2. Remove the fluid pump support seal ring.





3. Remove the fluid pump housing.

1. Remove the 6 fluid pump screws.

2. Remove the fluid pump support and gear and the fluid pump adapter plate.





4. Inspect the fluid pump support needle bearings and cage for scored or missing rollers and alignment of lube holes. If damage to the components are indicated, install a new pump.





5. Inspect the coast clutch feed hole for blockage or damage. If damage to the components is indicated, install a new pump.

1. Rotate the pump bearing and locate the coast clutch feed hole.

2. Inspect the coast clutch feed hole for blockage or damage.





6. NOTE: A rough casting on the pump surface crescent is not a flaw.

NOTE: The fluid pump gears are part of the pump assembly and are not serviced separately.

Remove the fluid pump gears and front pump adapter plate.





7. Remove the drive gear O-ring seal and discard. Inspect the fluid pump gears for cracks and scoring. Install a new front pump support and gear assembly if damaged.





8. 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.





9. Inspect the fluid pump adapter plate for scoring and wear.

10. NOTE: The fluid pump-to-converter housing bushing is not serviced separately. If service is required, installation of a new converter housing will be needed.

Inspect the fluid pump-to-converter housing bushing and converter hub-to-converter housing seal. Install a new converter housing assembly if necessary.





11. Using the Bushing Remover, remove the converter hub-to-converter housing seal.





Assembly

1. Thoroughly clean all parts and blow dry with moisture-free compressed air.

2. NOTE: Check and make sure that the garter spring in the seal has not popped off of the converter hub-to-converter housing seal.

Install a new converter hub-to-housing seal onto the Torque Converter Fluid Seal Installer.





3. NOTICE: Place the converter housing on a block of wood or equivalent to protect the converter hydraulic passages on the backside.

NOTE: Do not finish converter housing and fluid pump reassembly at this time. Assembly is completed during transmission assembly to correctly set front end clearance.

Using the Torque Converter Fluid Seal Installer, install the new converter hub-to-converter housing seal into the converter housing, until it bottoms in the housing.