Subaru 2009 IMPREZA Service Manual page 2164

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C: INSPECTION

1. CLUTCH DISC

1) Facing wear

Measure the depth from the facing surface to the

rivet head. Replace if the face is worn locally or

worn down to less than the specified value.

Depth to rivet head:

Limit of sinking

0.3 mm (0.012 in)

Do not wash the clutch disc with any type of clean-

2) Hardened facing

Replace the clutch disc.

3) Oil soakage on facing

Replace the clutch disc and inspect the transmis-

sion front oil seal, transmission case mating sur-

face, engine rear oil seal and other locations for oil

(A) Clutch facing

Clutch Disc and Cover

4) Deflection on facing

If deflection exceeds the specified value at the out-

er circumference of the facing, replace the clutch

ST 499747100

Limit for deflection:

0.7 mm (0.028 in) at R = 110 mm (4.33 in)

5) If there is spline wear, loose rivets, failed damper

springs, etc., replace the clutch disc.

CLUTCH DISC GUIDE

CLUTCH SYSTEM