Rear wheel bearing removing and installing

Wheel bearing replacement can be performed by removing the rear trailing arm as described earlier and pressing the bearing out on the bench. The following procedure describes utilizing a special bearing removal and installation tool that eliminates the need to remove the trailing arm from the car.

— Apply parking brake and shift transmission into reverse.

— Remove wheel hub center cap. Loosen stub axle nut (32 mm socket wrench) through opening in center of wheel.

— Loosen rear wheel lug nuts.

— Release parking brake and shift car into neutral. Raise rear of car and support it securely.

— Remove rear wheel. Remove stub axle nut.

Make sure the car is stable and well supported at all times. Use a professional automotive lift or jack stands designed for the purpose. A floor jack is not adequate support.

— Remove rear wheel. Remove stub axle nut.

— Press brake pedal down about 1 in. and hold in place with a pedal stop.

This will prevent brake fluid from dripping out of open brake lines while the work is being performed.

A Working at trailing arm, disconnect electrical connector (arrow) for brake pad wear sensor and remove harness from clip on trailing arm.

Disconnect brake line from brake caliper. Plug hydraulic lines.

CAUTION—

When working with hydraulic brake lines and hoses be sure to counterhold fitting before loosening or tightening.

— Remove brake caliper mounting bolts and remove caliper. See 470 Brakes-Hydraulic.

Lower car close to ground level. Use floor jack under trailing arm to relieve suspension load on shock absorber. (Brake backing plate shown removed for clarity).

• Remove rear shock absorber lower mounting bolt from trailing arm (arrow).

Porsche special tool P 289 a may be used to hold rear suspension in a compressed position while working on the rear shock absorber bolt.

^ Unbolt CV joint fasteners (arrows) from transmission output flange.

• Disconnect axle shaft from drive flange. Drive stub axle out of trailing arm.

• See Axle shaft, removing and installing, later in this section.

Remove Rotor Drive Shaft

0019043

.0013015

Castellated Nut Porsche 911

0019047

^ Remove brake rotor retaining screws and puli off brake rotor.

Working at parking brake shoes pivot, remove cotter pin and castellated nut (arrow).

Drive out rear wheel hub using Porsche special tool P 297 a or equivalent.

0019061

Porsche 911 Brake Plate

0019064

Remove wheel bearing cover plate bolts (arrows). Remove plate with parking brake shoe assembly.

• Remove brake rotor backing plate bolts (arrows). Remove backing plate.

Rear stabilizer bar

Rear stabilizer bar

0019041

Boeing 737 Ground Chords

&& NJ

7 8 9 10

0018952

1.

Attaching bracket

6.

Bolt (M12x 1.5x60),

(welded to body)

tighten to 85 Nm (61 ft-lb)

2.

Rubber mount

7.

Stabilizer bar link

3.

Mounting bracket

8.

Bolt (M12x 1.5x70),

4.

Washer (M8)

tighten to 85 Nm (61 ft-lb)

5.

Bolt (M8)

9.

Nut (M12)

tighten to 25 Nm (18 ft-lb)

10

Stabilizer bar

^ Use wheel bearing tool to remove old bearing and install new following manufacturer's instructions.

— Remainder of installation is reverse of removal.

• Bleed brakes as described in 470 Brakes-Hydraulic.

Tightening torques

• Brake caliper to trailing arm (M12) 60 Nm (43 ft-lb)

• CV joint to transmission flange

• Rear shock absorber to trailing arm (M14) 125 Nm (92 ft-lb)

M20 castellated nut 300-320 Nm (217 - 231 ft-lb)

M22 self-locking nut 460 Nm (339 ft-lb)

• Wheel bearing cover plate to bearing housing (M10) 47 Nm (34 ft-lb)

STABILIZER BAR

The rear stabilizer bar attachment points at the body have been upgraded. The new stronger braces must be welded to the underbody. This work is best left to an authorized Porsche dealer or other qualified repair shop.

0019038

1984 911 Engine Compartment

0019041

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