Coast Clutch Assembly

Special Tools:

Disassembly





1. Remove the retaining ring.





2. Remove the coast clutch pressure plate and the clutch plates.





3. Inspect the overdrive one-way clutch for damage to the plastic cage, springs, and rollers. Replace as necessary. Remove the overdrive one-way clutch.





4. Remove the coast clutch return spring using the Clutch Spring Compressor.
1 Remove the retaining ring.
2 Remove the return spring.





5. Remove the coast clutch piston and seal assembly.





6. NOTE: If the teeth and/or bushing are damaged, the sun gear will need to be replaced.

If required, use an arbor press to remove the sun gear.





7. NOTE: If the coast clutch cylinder shows any signs of damage it will need to be replaced.

Inspect the coast clutch assembly.
1 Inspect the bushing.
2 Inspect the No. 1 thrust washer.
3 Inspect the lube hole.





8. Inspect the one-way clutch inner race.
1 Inspect the coast clutch hub inner race.
2 Inspect all the sealing surfaces, sun gear splines, and the lube hole.


Assembly





1. If the sun gear was removed, install the sun gear.





2. Inspect the coast clutch piston and seal assembly for damage and the check ball for free movement. If the coast clutch piston and seal assembly is damaged it will need to be replaced.





3. NOTE: Prior to installing the coast clutch piston, lubricate the piston seal with petroleum jelly.

Using the Coast Clutch Piston installer, install the coast clutch piston.





4. Install the coast clutch retaining ring using the Clutch Spring Compressor.
1 Install the return spring.
2 Install the retaining ring.





5. Make sure that the one-way clutch is locked in place. Turn counterclockwise to lock in place. Install the overdrive one way clutch.





6. Install the coast clutch pressure plate and the clutch plates.





7. Install the retaining ring.





8. Check the stack-up clearance.
1 Using a feeler gauge, measure the stack up clearance in three places, 120° apart, between the snap ring and the coast clutch pressure plate.
2 If the clearance is not within specification, install the correct coast clutch pressure plate retainer snap ring and recheck the clearance.