Operation CHARM: Car repair manuals for everyone.

Forward One-Way Clutch

Forward One-Way Clutch - Sprag Type

Special Tool(s):








Disassembly
1. Remove the coast clutch hub retaining ring.





2. Remove the coast clutch hub.





3. Remove the forward one-way clutch outer race and sprag assembly with end caps.





4. NOTE: Orientation of end caps to sprag assembly. New design end caps are the same thickness and interchangeable (but not reversible).

Remove the forward one-way clutch end caps from the sprag assembly.





5. Remove the forward one-way clutch retainer.





6. Remove the retaining ring down over the gear.





7. WARNING: Air pressure must not exceed 138 kPa (20 psi). Wear safety glasses when using compressed air. Failure to follow these instructions can result in personal injury.

Clean all parts thoroughly in clean solvent and blow dry with moisture-free compressed air.
8. Inspect the forward one-way clutch parts for damage and wear.
^ Outer race
^ Sprag assembly and end caps
^ Inner race and low-intermediate sun gear assembly
^ Lube holes
^ Coast clutch hub

Assembly
1. Install the retaining ring.





2. NOTE: The tabs on the retainer face downward.

Install the forward one-way clutch retainer.





3. Install the forward one-way clutch end caps onto the sprag assembly.





4. Using the special tool, install the one-way clutch bearing into the one-way outer race.





5. Install the sprag assembly and end caps in the outer race.





6. NOTE: Lube grooves face upward (away from the sun gear).

Rotate the outer race and sprag assembly (with end caps) over and install it on the forward one-way clutch inner race.





7. Check the operation of the forward one-way clutch with the low/intermediate sun gear facing upward.
^ Hold the outer race firmly.
^ Rotate the low/intermediate sun gear clockwise.
^ The low/intermediate sun gear should rotate with a slight drag without attempting to rotate the outer race.
^ Rotate the low/intermediate sun gear counterclockwise. The low/intermediate sun gear should rotate the outer race.





8. Install the coast clutch hub.





9. NOTE: The ends of the retaining ring should point toward the coast clutch hub.

NOTE: Make sure the retaining ring is fully seated upon installation.

Install the coast clutch hub retaining ring.