Jukelemon

Hi all.

I bought my 993 with "new" pads and rotors. They have always squeaked and now the rotors/brakes have a shimmy at 45 after braking-then goes away. No other shimmy spots in the speed range.

The squeal is VERY loud.

Thanks

RallyJon

Try re-bedding them. If they're "warped" (deposited) that may clear it up.

Also check the play in the A-arm bushings. If your bushings are worn out it can feel a lot like a warped rotor. Details here: https://rennlist.com/forums/showpost...2&postcount=26

Jukelemon

Thx.

Can you explain the "re-bed"? My Cab has 36k miles on her. Are the A arm bushings prone to fail that early?

Martin S.

Lower control arm/A Arm bushings can go. When you put her up on the rack, a good tech can apply the appropriate tension/pressure to the Lower control arm/A arm bushings with a large screw driver to see if they flex. If they do, its replacement time.

To get crud off the rotors, some folks work them over with an abrasive...have not done this, can't recommend an abrasive.

Is my vague advice abrasive? I hope not.

AM993

What is the brand of your pads? I would recommend to replace your pads with OE Texstar to get rid of the squeal. IIRC, Sunset Import has them for $96.65 per set (front or rear).

dhicks

+ 1

95C4VanIsle

If you do a search on "brake squeal" you will find a post by Chris W. that explains re-bedding of brakes. Hope it helps!

Greg H.

Before you rebed you need to get rid of any build up on the rotors. I have had pretty good luck with sanding the rotors with 80 grit garnet sandpaper. Make sure its garnet paper, not some sort of oxide. The other option is to put on some abrasive racing pads for a day or two.

Greg H.

clubsport1

Do you have the sticky pad locaters fitted on the back of the pads to stop them moving around on the caliper pistons? These are a few $ and cut down noise considerably.

Jukelemon

Thanks all for the pads.

I really don't know the type of pads-prior owner stated "racing" type and as a result of this type, expect squeal. Never had that issue on any other sport's car. But...

Anything to watch out for simple R and R of the rotors/pads? I have done many on other cars.

Thanks

JL

kkim

http://p-car.com/diy/brakepads/

FlyYellow

get the spiders from the dealer - huge difference. that's what i did!