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Parking Brake Adjustment
 
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Pelican Technical Article:

Parking Brake Adjustment

Steve Vernon

Time:

1 hour1 hr

Tab:

$0

Talent:

**

Tools:

Flathead screwdriver, 10mm wrench, floor jack, jack stands, wheel chocks, safety glasses, lug wrench, torque wrench

Applicable Models:

Porsche 944 Turbo (1986-89)

Hot Tip:

Double check adjustment before finishing up

Performance Gain:

Proper parking brake function

Complementary Modification:

Replace parking brake shoes

Over the years, the parking brake on your Porsche 944 may become unadjusted and fail to perform properly. The adjustment of the brake shoes that control the parking brake is an easy process, and shouldn't take you more than an hour to accomplish.

You will need to raise the rear of the vehicle as well as remove the rear wheels. Please see our article on safely jacking up and supporting your vehicle for additional assistance.

The same device that spreads or retracts the shoes inside the bell of the rear brake rotors controls the parking brake shoes.
Figure 1

The same device that spreads or retracts the shoes inside the bell of the rear brake rotors controls the parking brake shoes. Start by releasing the parking brake handle from inside the car. Turn the axle until the access hole is at the top of the rotor. Reach in through the hole with a flathead screwdriver (red arrow), and rotate the cog until the parking brake shoe is tight and the rotor can no longer be rotated. The cog assembly may have got turned around at one point when the shoes were replaced, so you will have to play with the mechanism a little bit to see if you need to turn the cog up or down to tighten. If you are turning the sprocket a lot, and the brake disc isn't tightening up, then you are probably turning it in the wrong direction. Repeat this procedure for the opposite side of the car. After you have the sprockets adjusted so that the brake shoes have just pressed up against the inside of the disc, and you can no longer turn the disc, back them off until the rotor can spin freely. It should be around nine clicks.

This photo illustrates the small cogwheel inside the rotor that you will be turning (red arrow).
Figure 2

This photo illustrates the small cogwheel inside the rotor that you will be turning (red arrow). You do not need to remove the rotor. This is for demonstration purposes only.

Now move back to the cockpit of the car, and pull up on the hand brake several times to help seat the cables.
Figure 3

Now move back to the cockpit of the car, and pull up on the hand brake several times to help seat the cables. Finally, pull up on the hand brake so that the ratchet clicks through two notches. Now, tighten up the cables using the nuts at the bottom of the handbrake lever (red arrow). Tighten the nuts to the point where there is just a bit of slight resistance on each of the two rear wheels. Now, release the lever and verify that the wheels turn freely. The brake discs should be free to rotate with the handle in the down position, but fully locked by the time that the handbrake is pulled up a few notches past the two clicks.



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Page last updated: Wed 12/7/2016 02:51:32 AM