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Pelican Technical Article:

911 E-Brake Adjustment

Bob Tindel

Applicable Models:

 
Porsche 911 (1965-89)
Porsche 912 (1965-69)

911 E-Brake Adjustment

The emergency, or parking brake, uses a small brake drum inside each rear rotor. It is mechanically operated by a cable system, and is independent of the hydraulic service brake system. The parking brake my need periodic adjustment of the shoes to compensate for wear. Here is how to do it:

1. Raise the rear of the car, place it on jack stands, and remove the rear wheels.

2. Ensure that the parking brake is fully released.

3. Rotate the brake rotor until the brake shoe adjuster (star wheel) is visible through the brake adjustment hole (located between two of the lug bolts).

4. Using a screwdriver, tighten the brake shoe adjuster until the rotor can no longer be turned by hand.

5. Loosen the adjuster four clicks, and check for free rotation of the rotor. If necessary, loosen the adjuster more.

6. Repeat for other side.

The parking brake cable may need adjustment if the parking brake lever needs to be pulled up more than 4—5 clicks to lock the rear wheels, or if one wheel stops before the other when the parking brake is applied.

Working underneath the rear of the car and with the parking brake fully released, adjust cables at locking nuts so that equal amounts of thread show on each cable. Make sure that is slight axial (in and out) play in both cables at the trailing arms. Check again to be sure that both wheels turn freely with the parking brake released.

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Comments and Suggestions:
Anc4 Comments: Ps 76 911s
January 14, 2013
  Followup from the Pelican Staff: Got it. Thanks - Nick at Pelican Parts  
Anc4 Comments: My drivers side hand brake cable separates from the hand brake anyone have this happen and what needs to be adjusted or replaced to fix this? I've re attached the cable, not easy, but it happens again
January 14, 2013
  Followup from the Pelican Staff: I would be the cable is sticking and not retracting, causing it to come undone. Disconnect it at both side and check if it slides smoothly in the sheath. - Nick at Pelican Parts  
red77911s Comments: Update on E-brake warning light adjustment: came across this in a Chiltons 65-85 911 shop manual, It says: 1. Pull tunnel cover and handbrake lever boot up at the rear. 2. Release handbrake, then pull it up one notch. 3. Loosen switch screw on handbrake lever housing 1 or 2 turns. 4. Move screw in slot to the point where the warning light just comes on. Tighten the screw in this position. There was no picture so I don't have a clue which models this may or may not apply to. Good Luck, now I'll go see if it works for mine.
December 11, 2012
  Followup from the Pelican Staff: Thanks for the follow up and additional info. We appreciate it.
- Nick at Pelican Parts
 
red77911s Comments: My E-brake light was staying on in my recently acquired 911 I determined that the short shift kit installed by the prior owner had raised the console to where the switch would not cut the light out. I looked into adjustment of the contacts no go finally just took the console out. That's another issue entirely I had considered notching the console.
November 27, 2012
  Followup from the Pelican Staff: Here is your folow up. Helpful information, thanks.

Update on E-brake warning light adjustment: came across this in a Chiltons 65-85 911 shop manual, It says: 1. Pull tunnel cover and handbrake lever boot up at the rear. 2. Release handbrake, then pull it up one notch. 3. Loosen switch screw on handbrake lever housing 1 or 2 turns. 4. Move screw in slot to the point where the warning light just comes on. Tighten the screw in this position. There was no picture so I don't have a clue which models this may or may not apply to. Good Luck, now I'll go see if it works for mine. - Nick at Pelican Parts
 
Lt. Buck GVFD Comments: Any ideas on how to repair my emergency brake light? It will not turn off when the brake is released, it used to flicker when the brake was released, any help will be greatly appreciated.
November 13, 2012
  Followup from the Pelican Staff: Try this:

1. Pull tunnel cover and handbrake lever boot up at the rear. 2. Release handbrake, then pull it up one notch. 3. Loosen switch screw on handbrake lever housing 1 or 2 turns. 4. Move screw in slot to the point where the warning light just comes on. Tighten the screw in this position. - Nick at Pelican Parts
 
l_turn9 Comments: as far as the adjusting star not turning - sometimes the star will hit the spring or brake shoe and it cannot be turned. Sometimes the star and brake shoe can be moved apart with a screwdriver but usually the caliper & the rotor must be removed, then the e-brake parts can be removed and adjusted. When reassembling the brakes, put a small dab of Never-Seize on the adjusting star and it's mating pieces don't let it get on any of the brake parts.
February 7, 2012
  Followup from the Pelican Staff: I have seen just that, the adjuster binding on a spring. Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 
john Comments: where can i find front disc brake rotor dust shields a 1992 ford areostar thank you john
June 22, 2011
  Followup from the Pelican Staff: I would try a local Ford dealer. - Nick at Pelican Parts  
Wilfred Comments: I tried to adjust the hand brake following the established procedure of using a screwdriver to tighten the brake shoe adjusterstar wheeluntil the rotor can no longer be turned by hand. I turned star wheel toward the rear of the car but the rotor still rotate. Can you help me identify what is wrong. Do you thing the cable is broken and that is the reason why is not adjusting . Please advise.
August 15, 2010
  Followup from the Pelican Staff: It's a different direction for each side of the car. Try turning the wheel in the opposite direction, and that should work. - Wayne at Pelican Parts  

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