Reduction Drive Gear: Adjustment
WARNING: This page is about a different car, the 2021 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the reduction drive gear shim.
- Install the transmission case, and secure it with four or five bolts.
Tightening torque:
22 N.m (2.2 kgf-m, 16.2 ft-lb)
- Measure depth "A" from the ST upper face to the reduction drive gear end face.
Preparation tool:
ST: GAUGE (499575400)
- Raise and hold the reduction drive gear.
- Measure depth "B" from the ST upper face to the reduction drive gear end face.
Preparation tool:
ST: GAUGE (499575400)
- Obtain the thickness of reduction drive gear shim using the following formula to select one to three reduction drive gear shims.
T mm = A - B - (0.05 - 0.25)
[T in = A - B - (0.002 - 0.01)]
T: Reduction drive gear shim thickness
A: Depth from the ST upper face to the reduction drive gear end surface
B: Depth from the ST upper face to the reduction drive gear end surface
0.05 - 0.25 mm (0.002 - 0.01 in): Clearance
| Reduction drive gear shim | |
|---|---|
| Part No. | Thickness mm (in) |
| 31288AA261 | 0.3 (0.012) |
| 31288AA271 | 0.4 (0.016) |
| 31288AA281 | 0.5 (0.020) |
| 31288AA291 | 0.6 (0.024) |