Rear Disc Rotor - Subaru 2009 IMPREZA Service Manual

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6. Rear Disc Rotor

1) Lift up the vehicle, and remove the rear wheels.

2) Release the parking brake.

3) Remove the brake hose bracket.

4) Remove the two mounting bolts, and remove the

disc brake assembly.

5) Suspend the disc brake assembly so that the

hose is not stretched.

6) Remove the disc rotor.

If it is difficult to remove the disc rotor, perform the

following two methods in order.

(1) Turn the adjuster using a flat tip screwdriver

until the brake shoe is far enough away to allow

removal of the disc rotor.

(1) Adjuster

(2) Flat tip screwdriver

(3) Disc rotor

Rear Disc Rotor

(2) If it is difficult to remove the disc rotor from

the hub, drive an 8 mm bolt into the threads B of

the rotor, then remove the rotor.

B: INSTALLATION

1) Install in the reverse order of removal.

2) Adjust the parking brake. <Ref. to PB-8, AD-

JUSTMENT, Parking Brake Assembly (Rear Disc

C: INSPECTION

1) Check the rear wheel bearing play and axle hub

runout before inspecting the disc rotor runout.

<Ref. to DS-25, INSPECTION, Rear Hub Unit

2) Secure the disc rotor by tightening the five wheel

3) Set a dial gauge 10 mm (0.39 in) inward from the

disc rotor outer circumference. Rotate the disc rotor

to check runout. If the disc rotor runout exceeds the

limit, resurface the disc rotor. After grinding, check

the thickness of the disc rotor according to the pro-

cedure in step 4).

Disc rotor runout limit:

0.05 mm (0.0020 in)