Coast Clutch

NOTE: MERCON Automatic Transmission Fluid is being replaced by MERCON V as a service fluid.

Special Tools:

Coast Clutch Assembly, Disassembled View (Part 1 Of 2):

Coast Clutch Assembly, Disassembled View (Part 2 Of 2):

DISASSEMBLY





1. Remove the overdrive sun gear.





2. Remove the coast clutch pressure plate retainer ring.





3. Remove the (A) coast clutch pressure plate and the (B) clutch plates.

NOTE: Tag the parts for identification during installation.





4. Using the (A) Clutch Spring Compressor, compress the (B) coast clutch piston return spring and remove the (C) coast clutch piston return spring retaining ring. Remove the tool. Discard the retaining ring.

CAUTION: Do not fully compress the return springs or damage to return spring may occur.





5. Remove the coast clutch piston return spring.





6. Remove the coast clutch piston apply ring.





7. Remove the coast clutch piston.





8. Remove the coast clutch piston outer seal.





9. Remove the coast clutch piston inner seal.

ASSEMBLY

NOTE: Soak all friction clutch plates for 15 minutes in clean Motorcraft MERCON or MERCON V Automatic Transmission Fluid or equivalent meeting FORD specification. Prior to installation, lightly lubricate all 0-ring seals with clean Motorcraft MERCON or MERCON V Automatic Transmission Fluid or equivalent meeting FORD specification.





1. Install the coast clutch piston inner seal.

NOTE: Make sure the seal lip faces the coast clutch cylinder.





2. Install the coast clutch piston outer seal.

NOTE: Make sure the seal lip faces the coast clutch piston.





3. Install the coast clutch piston.





4. Install the coast clutch piston apply ring.





5. Install the coast clutch piston return spring.





6. Using the (A) Clutch Spring Compressor, compress the (B) coast clutch piston return spring and install the new (C) coast clutch piston return spring retaining ring. Remove the tool.

CAUTION: Do not fully compress the return springs or damage to return spring may occur.





7. Alternately install the (A) steel and the (B) friction clutch plates, beginning with a steel plate and ending with the (C) coast clutch pressure plate.





8. Install the selective coast clutch pressure plate retainer ring.





9. Check the stack-up clearance.
1 Using a feeler gauge, check the stack-up clearance in three places, 120 degrees apart.
2 If the clearance is not to specification, install the correct coast clutch pressure plate retainer snap ring and recheck the clearance. Refer to the Clutch Plate Usage and Clearance Specification Chart for selective snap ring thicknesses. Specifications





10. Install the overdrive sun gear, with the short end of the gear downward.