FixVault

Transfer Clutch: Inspection

  1. Inspect clearance between snap ring and pressure plate.
  2. Before measuring clearance, place the same thickness of shim on both sides to prevent pressure plate from tilting.
  3. If the clearance is not within specification, adjust it by selecting a suitable pressure plate on the transfer clutch piston side.

    If the clearance is above the limit, replace the drive plate with new one and adjust so that the clearance is within specification.

    Standard value: 

    0.7 - 1.1 mm (0.028 - 0.043 in) 

    Allowable limit: 

    1.6 mm (0.063 in) 

    Fig 1: Measuring Extension End Play
    G03750572Courtesy of SUBARU OF AMERICA, INC.
    PRESSURE PLATES THICKNESS SPECIFICATION

    Pressure plates
    Part No. Thickness mm (in)
    31593AA151 3.3 (0.130)
    31593AA161 3.7 (0.146)
    31593AA171 4.1 (0.161)
    31593AA181 4.5 (0.177)
  4. Check if the tight corner braking does not occur when the vehicle is started with steering wheel held at fully turned position. 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 still persists, drive the vehicle again in a circle for several laps.