Overdrive and Coast Clutch Assemble

Overdrive and Coast Clutch Assemble

Special Tools
* J 23327 - Clutch Spring Compressor
* J 45124 - Removal Bridge
* SA9179NE - Dial Indicator

For equivalent regional tools, refer to Special Tools (Tools and Equipment).




1. Inspect the check ball is free by shaking the coast clutch piston (221).
2. Inspect the valve does not leak by applying low-pressure compressed air.




3. Coat the overdrive clutch piston inner and outer seals (222, 223) with ATF and install them on the overdrive clutch piston (224).
4. Coat the inner surface of the overdrive and coast clutch housing with ATF.




5. Press the overdrive clutch piston (224) in the overdrive and coast clutch housing (225), being careful not to damage the O-ring.




6. Coat the coast clutch piston inner and outer seals (219, 220) with ATF and install them on the coast clutch piston (221).
7. Coat the inner surface of the overdrive clutch piston with ATF.




8. Press the coast clutch piston (221) into the overdrive clutch piston (224).




9. Place the overdrive coast clutch spring (218) on the coast clutch piston (221).





Note: Be sure the end gap of the retaining ring is not aligned with the spring retainer claw.

10. Using the bridge and legs of the J 45124 - removal bridge (3) with the forcing screw of the J 23327 - spring compressor (2) and J 21420-2 (1) plate, which is part of J 23327 - spring compressor , compress the overdrive and coast clutch spring (218).
11. Install the overdrive and coast clutch spring retaining ring (217). Remove the tools.





Note: Be sure to alternate the order of plates-2 and discs-2.

12. Install the coast clutch backing plate (213), coast clutch plate assembly-steel plates (216) and fiber discs (215) as shown.




13. Install the coast clutch backing plate retaining ring (214) with a screwdriver in the groove. Inspect the end gap of the retaining ring is not aligned with one of the cut-outs.





Note: Be sure to alternate the order of plates-3 and discs-3.

14. Install the overdrive clutch plate assembly-steel plates (212), fiber discs (211) and the overdrive clutch backing plate (210).




15. Install the overdrive clutch backing plate retaining ring (209) with a screwdriver in the groove. Inspect the end gap of the retaining ring is not aligned with one of the cut-outs.




16. Install the coast clutch assembly into the transmission rear cover, and set the SA9179NE - dial indicator as shown.
17. When applying and releasing compressed air 392 KPa (56 psi) into the fluid passage as shown, measure the coast clutch piston stroke. Piston stroke 2.682-3.018 mm (0.105-0.120 in).
18. If the piston stroke is out of standard, select another flange.

* Flange thickness type = 3.6 mm (0.14 in).
* Flange thickness type = 3.8 mm (0.15 in).
* Flange thickness type = 4.0 mm (0.16 in).




19. Install the overdrive clutch assembly into the transmission rear cover, and set the SA9179NE - dial indicator as shown.
20. When applying and releasing compressed air 392 KPa (56 psi) into the fluid passage as shown, measure the overdrive clutch piston stroke.

* Piston stroke 0.762-1.038 mm (0.030-0.040 in).
* Piston stroke 1.043-1.357 mm (0.041-0.053 in).

21. If the piston stroke is out of standard, select another flange.

* Flange thickness type =3.6 mm (0.14 in).
* Flange thickness type = 3.8 mm (0.15 in).
* Flange thickness type = 4.0 mm (0.16 in).