23. 4 - 5 Clutch Drum Assembly Disassemble

4 - 5 CLUTCH DRUM ASSEMBLY DISASSEMBLE

^ TOOLS REQUIRED
- J 23327 Clutch Spring Compressor
- J 28585 Snap Ring Remover
- J 45186 Clutch Spring Compressor





1. Using Snap Ring Remover J28585, remove 4-5 clutch backing plate retaining ring (575) from underdrive clutch.
2. Remove the following components from underdrive clutch:
^ 4-5 clutch backing plate (576)
^ Fiber plates (577)
^ Steel plates (578)
3. Perform clutch plate inspection.

Composition Plates
Dry the plates and inspect plates for the following conditions:
^ Pitting
^ Flaking
^ Wear
^ Glazing
^ Cracking
^ Charring
^ Chips or metal particles embedded in lining
Replace a composition plate which shows any of these conditions.

Steel Plates

IMPORTANT: If clutch shows evidence of extreme heat or burning, replace springs.

Wipe plates dry and check plates for heat discoloration. If surfaces are smooth, even if color smear is indicated, the plate can be reused. If plate is discolored with heat spots or if surface is scuffed, replace plate.

Causes of Burned Clutch Plates
The following conditions can result in a burned clutch plate:
^ Incorrect usage of clutch plates
^ Engine coolant in transaxle fluid
^ A cracked clutch piston
^ Damaged or missing seals
^ Low line pressure
^ Valve conditions
- Valve body face is not flat
- Porosity between channels
- Checkballs are misplaced
^ Teflon@ seal rings are worn or damaged





IMPORTANT: Be careful not to damage 4-5 clutch sun gear.

4. Using J21420-2 which is part of the Clutch Spring Compressor J23327, place it under the 4-5 clutch drum assembly. Place Forward and Direct Clutch Spring Compressor J45186 on spring retainer and compress springs.
5. Remove snap ring.
6. Remove underdrive clutch piston return spring assembly.





7. Cover any two of the four oil passage holes on 4-5 clutch drum. Apply compressed air to any hole in order to remove 4-5 clutch piston assembly.





8. Remove inner O-ring and outer O-ring from 4-5 clutch piston.