Transfer Clutch: Inspection

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.

Check that there is no deformation, cracks or other damages.
Check the driven plate for discoloration (burnt color).
Before measuring clearance "C" between snap ring and driven plate, place same thickness shims on both sides to prevent the plate from tilting.
When clearance "C" exceeds the limit for use, replace the drive plate and driven plate as a set, and select the pressure plate within the initial specified value.
Initial standard:

0.7 - 1.1 mm (0.028 - 0.043 in)

Limit thickness:

1.3 mm (0.051 in)

Courtesy of SUBARU OF AMERICA, INC.
Check for tight corner braking phenomenon when the vehicle is moved forward with the steering fully turned. If tight corner braking occurs, perform the following procedures.
1. With the steering wheel held at fully turned position, drive the vehicle in "D" range and with vehicle speed at approx. 5 km/h (3 MPH) in both clockwise and counterclockwise directions for approx. ten times each, while repeating acceleration and braking intermittently.
2. If the tight corner braking phenomenon still persists, drive the vehicle again in a circle for several laps.