Necessary equipment
- J-28585 Snap Ring Remover
- J-23327 Clutch Spring Compressor
- J-25024-A Clutch Spring/Booster Piston Compressor
- J-45186 Forward and Direct Drive Clutch Spring Compressor
1. Install the underdrive clutch piston (C3).
- Lubricate the new sealing rings with automatic transmission fluid and install them on the piston.
- Lubricate the inner surface of the C3 drum with automatic transmission fluid.
- Press piston C3 into drum C3.
Important: Be careful not to damage the sealing ring.
2. Install the return spring assembly of the underdrive clutch (C3).
- Install the underdrive clutch return spring assembly (C3) onto the underdrive clutch piston (C3).
- Place J-25024-A in a vise with the clamp bolt down and pulled back.
- Install J-45186 to the underdrive clutch assembly return spring (C3).
- Place J-21420-2 from J-23327 on top of J-25024-A jack bolt.
- Place the clutch housing with J-45186 on J-21420-2 and under the shoulders of J-25024-A.
- Use the pressure bolt to compress the clutch spring so that the retaining ring can be installed.
- Using J-28585 or snap ring pliers, install snap ring.
Important: Make sure that the cut of the retaining ring does not coincide with the locking lug.
3. Install the underdrive clutch flange, disc and plate (C3).
- Install the flange, plates and discs as shown in the figure.
Important: Make sure that the number and order of installation of flanges, plates and discs is correct.
- Order: F - D - P - D - P - D - P - D - P
|
Clutch and brake
|
Flange (F)
|
Plate (P)
|
Disk (D)
|
|
Underdrive clutch (C3)
|
1
|
4
|
4
|
- Install the retaining ring into the groove with a screwdriver. Make sure that the cut of the retaining ring does not coincide with any of the cutouts.
4. Check the stroke of the underdrive clutch piston (C3).
- Piston stroke: 1.52-1.90 mm (0.059-0.075 inches)
If the C3 piston stroke is not within the norm, select another flange.
- Flange thickness type: 3.6mm (0.142 inches), 3.8 mm (0.150 inches), 4.0 mm (0.157 inches)
(The article is reprinted from the website «CHEVYMAN.RU»)