Brake disc removal

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Mar 13, 2003 | 08:07 PM

Jack Kramer

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From: Philly

Brake disc removal

I did an archive search and did not find any reference to this problem which leads me to believe I'm doing something wrong.

I'm trying to get my car ready for the track w/ new discs and pads. Unfortunately, I can't get my rear brake discs removed on my '95 C2. I've followed Robin's DIY from p-car.

Screws are removed.
Parking brake is off.

The disc will move a small amount but there is something holding it back. It feels like it is being pulled back by some type of a spring. Have I missed doing something with the parking brake mechanism?

Any help would be greatly appreciated.

Mar 13, 2003 | 08:38 PM

chris walrod

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From: yorba linda, ca

you should be good to go. maybe the e-brake shoes are catching on a lip created by wear on the drum surface? I wouldn't think the ebrake drum surface would get much wear...

Mar 13, 2003 | 10:04 PM

Jack Kramer

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From: Philly

<blockquote>quote:<hr />Originally posted by Silver Bullet:
Have you removed the calipers?

Can you rotate the hub (to ensure the hand brake is really off)?
<hr /></blockquote>Yes, the calipers are off and the hub rotates freely.

Thanks.

Mar 13, 2003 | 10:06 PM

Chris C.

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From: Bay Area CA

Time for the love tap with the rubber mallet.

Mar 13, 2003 | 10:09 PM

Jack Kramer

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From: Philly

<blockquote>quote:<hr />Originally posted by chris walrod:
maybe the e-brake shoes are catching on a lip created by wear on the drum surface? I wouldn't think the ebrake drum surface would get much wear...<hr /></blockquote>That would describe it. But, I'm with you, I didn't think you would get that much wear. I've had the car a year and have not had any problems with the e-brake, but who knows what the previous owner did...

It does it on both rears so it's consistant.

Mar 13, 2003 | 11:57 PM

Ray Calvo

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From: Pittsburgh, PA

The e-brake might have to be adjusted to be looser, thereby allowing you to pull the disc off. There is what is known as a star wheel accessible thru an access hole in the drum portion of the disc. You use a flat-bladed screwdriver to turn this star wheel, which either tightens or loosens the drum-style e-brake.

Turn if one way; if disc is harder to rotate, then turn it the other way about 2-3 turns.

Once you replace the disc, you'll have to adjust the e-brake. Basic procedure is:

- Release parking brake
- Adjust star adjuster till can't turn rotor anymore
- Adjust star adjuster till wheel is free
- Pull up handbrake by two notches
- Adjust star adjuster till wheel can barely be rotated
- Release parking brake and check for free wheel rotation

Now, park the car on a hill and pull up on the e-brake. Car should be firmly held by time you've pulled up 4 notches.

Want more? Buy the shop manual, cheapskate. Or even a universal Chilton or Haynes manual; procedure is the same on all 911s since the '70's.

Mar 14, 2003 | 12:33 AM

Dave R.

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From: Seattle

As to why there might be a lip:

I replaced rear discs (with integral parking brake drums) on the family Volvo a few days ago. There was a lip adjacent to the shoes. It looked like the lip formed because corrosion lifted the surface of the drums and was polished off only where contacted by the shoes.