Fluid Pump

Fluid Pump

Part 1:

Part 2:

Special Tool(s)





Material
Disassembly





1. Remove the fluid pump gasket, fluid pump seal ring and the No. 1 thrust washer.
1 Remove and discard the fluid pump gasket.
2 Remove and discard the fluid pump seal ring (square cut).
3 Remove and tag the No. 1 thrust washer.





2. Remove the fluid pump support seal ring.





3. Remove the seal rings.





4. Remove the fluid pump housing.





5. 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 repaired separately.

Remove the fluid pump gears.





6. Remove the drive gear O-ring seal and discard. Inspect the fluid pump gears for cracks and scoring.





7. Inspect the overdrive pump.
^ Inspect the overdrive pump support gear pockets for scoring and wear.
^ Clean and inspect the overdrive and rear input shaft bushings.





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





9. Remove the valve.





10. Remove and discard the seal.





11. Inspect the fluid pump to converter housing bushing.

Assembly

1. NOTE: Minor burrs and scoring may be removed with crocus cloth. If damage is found, install a new assembly.

Inspect the fluid pump components for the following:
^ Pump body and case for burrs.
^ Fluid passages for obstructions.





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

Install a new seal onto the special tool.





3. Using the special tool, install the converter hub seal.





4. Install a new O-ring seal in fluid pump drive gear.





5. CAUTION: Lubricate the special tool with multipurpose grease.

Using the special tool, seat the O-ring seal in the pump gear.





6. CAUTION: The chamber on the inside edge of the small gear must be UP when in the pump housing gear pocket. The dimple on the larger gear must be DOWN when in the pump housing gear pocket.

Install the pump gears into the fluid pump housing. Apply multipurpose grease to pump gear to prevent scoring at start up.





7. Install a new seal on the valve.





8. Install the valve with the tab facing down.





9. First install the fluid pump adapter plate and then the alignment pins in their correct location.





10. CAUTION: The special tools must be used to correctly align the pump with the adapter plate to reduce gear noise, bushing failure and leakage.

Using the special tool, align the fluid pump to the adapter plate.





11. Using the special tools, assemble the pump.





12. Loosely install the fluid pump housing screws in their correct location and remove the special tools.





13. Install the 2 remaining screws and tighten all the screws in a star pattern.
^ Tighten to 25 Nm (18 ft. lbs.).





14. Install a new fluid pump seal ring.





15. Install 2 new seal rings.





16. CAUTION: Be careful not to overstretch the seal ring past the seal ring groove. Damage to the seal will occur.

Using the special tools, install the fluid pump seal ring.





17. CAUTION: Verify correct seal installation. Make sure seal grooves are clean and free of burrs.

Verify that the seal is installed correctly.





18. CAUTION: Failure to correctly size the seal will cause damage to the seal when the torque converter is installed.

Using the special tool, size the seal to the correct size. Leave the special tool on the seal ring for 2 minutes to obtain the correct seal.