hepkat63 Posted 6December, 2014 Report Share Posted 6December, 2014 probably one thing that annoys me more than someone dragging their finger nails down the blackboard.... is brake squeal. Is this a common issue in 964's ? I have had the car up on the hoist and wheels off and there is plenty of meat in the pads, the discs look fine - but everytime i use the brakes whilst going slow, they squeal. I even tried using some of that 'feel good' anti-squeal brake spray - yep, useless. I am guessing I have the wrong pads on there (I haven't changed any components sincing owning it over a year ago). Link to comment Share on other sites More sharing options...
SC 3.2 Posted 6December, 2014 Report Share Posted 6December, 2014 I had the same issue with my SC and brought some anti-squeal silicon from Repco which has to smeared onto the pad backing plates. This cured the problem beautifully. Regards Pete. Link to comment Share on other sites More sharing options...
Airhead Posted 6December, 2014 Report Share Posted 6December, 2014 Are the vibration rubbers still on the back of the pads? Link to comment Share on other sites More sharing options...
Russ Posted 6December, 2014 Report Share Posted 6December, 2014 there's heaps of different options, silicon, copper grease, and some other sticky plastic glue like stuff. all do similar things. and yeah is the anti squeal backing on your pads? (it's normally not on the cheaper pads) squeaking means they're working at least Link to comment Share on other sites More sharing options...
tazzieman Posted 6December, 2014 Report Share Posted 6December, 2014 Pull 'em off and inspect...post pic here The goo is the shizzle , bro Link to comment Share on other sites More sharing options...
hepkat63 Posted 6December, 2014 Author Report Share Posted 6December, 2014 thanks guys - appreciate all the suggestions. Will get some of the spray stuff and give it a go. Link to comment Share on other sites More sharing options...
Russ Posted 6December, 2014 Report Share Posted 6December, 2014 on the back, and sides of the pad where the metal backing touches the caliper. obviously not on the braking face or anywhere it can get near the rotor/pad Link to comment Share on other sites More sharing options...
Stew F Posted 6December, 2014 Report Share Posted 6December, 2014 I always use the Wurth anti squeal spray. H5000 or something like that. A brake guy once told me that the squeal is generally due to lack of lube between piston and backing plate, or a build up of brake dust, and less likely to be pad on disc Link to comment Share on other sites More sharing options...
tazzieman Posted 6December, 2014 Report Share Posted 6December, 2014 The piston is the fingernail on the blackboard that is the disc Link to comment Share on other sites More sharing options...
911oclock Posted 6December, 2014 Report Share Posted 6December, 2014 If the 964 brakes are anything like the earlier cars the pistons have to be aligned correctly. They have a cut out on the face that contacts the backside of the pad, if this is out of wack it can contribute to squeal. Link to comment Share on other sites More sharing options...
Stew F Posted 6December, 2014 Report Share Posted 6December, 2014 Wurth changed the name to Anti Squeal Spray since I bought it last. Which was a good 8 years ago now. Spray all the moving parts of the caliper castings as well, after wire brushing them and wiping with a damp rag. This stuff also works great as an anti galling compound. Especially on stainless steel fasteners. If you do happen to get a bit of overspray on the pad facing it just burns off pretty quick Link to comment Share on other sites More sharing options...
Mike D'Silva Posted 5January, 2015 Report Share Posted 5January, 2015 good thread... I've found that my right rear caliper squeals like a pig when pulling into the garage. When I get a spare day, and the humidity drops below 2billion percent, I'll get in the garage and give it a go... Link to comment Share on other sites More sharing options...
hepkat63 Posted 5January, 2015 Author Report Share Posted 5January, 2015 I did mine last weekend. Couldn't believe how easy it was to do. The only thing I did buy though was a caliper tool that allows me to push the calipers back into their little homes which makes slotting the pads back in childs play. I also swapped out all the wear sensors while I was there too. I bought a tube of anti-squeal glue from the speed shop. Previously, all four brakes squealed like anything, now i get just a mild squeal from the front left. Next time I'll put it on thicker i think Link to comment Share on other sites More sharing options...
StevepGT3 Posted 5January, 2015 Report Share Posted 5January, 2015 A light chamfer on the leading edge of the pads with a file also helps with vibration and squeal Link to comment Share on other sites More sharing options...
FortuneAuto Posted 13January, 2015 Report Share Posted 13January, 2015 If the pad does not come with a slot right in middle like some other pads might have, adding that slot will help with getting rid of brake dust and potential squeals. Link to comment Share on other sites More sharing options...
Stew F Posted 13January, 2015 Report Share Posted 13January, 2015 If the pad does not come with a slot right in middle like some other pads might have, adding that slot will help with getting rid of brake dust and potential squeals. My understanding is that as well as helping disperse the brake dust, the slot (same deal on slotted rotors I believe) creates a release point for the gases that build up between pad & disc under braking, which can create chattering. I have used the 'file a chamfer on the leading edge of the pad" method. Don't know if it actually does work as I always use anti-squeal on the back plates. Back in my days with the public transport department we always machined a reasonable sized chamfer on both the leading & trailing edges of bus brake shoes after relining them. We also used to put the anti-squeal compound between shoe & lining, and also on the rivets. Link to comment Share on other sites More sharing options...
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