Date: 6 Apr 2007 09:53:39 -0700
From: "pzi" <pzinospamnet>
Subject: Re: EBC red pads - too tick - 93 viggen

On Apr 5, 4:36 pm, "Charles C." <> wrote: > pzi wrote: > > On Apr 4, 3:56 pm, Colin Stamp <> wrote: > >> On 4 Apr 2007 08:17:26 -0700, "pzi" <p...nospamnet> wrote: > > >>> I got newEBCfront 12.1 inch rotors and red ceramic pads for my '02 > >>> viggen. Installed them and they make a lot of noise. They seem a bit > >>> too tick and there is not enough clearance for the rotors. > >>> Any ideas on how to gain some room between the pads? I drove for some > >>> 50 miles and the wear is not helping. > >>> I am thinking about shaving some material from the outside of the pad > >>> - or maybe take the pad to the grinder and taking some of the pad > >>> contact surface. > >> Assuming this isn't a troll, do not try to modify anything yourself. > >> No offence, but you fundamentally don't understand how disk brakes are > >> meant to work. Considering how safety critical brakes are, you might > >> want to get a trusted mechanic to look at them. > > >> There should be virtually no clearance between the pads,disks and > >> pistons at any time. Even if you reduce the thickness of the pads > >> (which is pretty-much impossible to do safely without the right gear > >> and knowledge) all that will happen is that the pistons will extend to > >> fill the gap you've just made. > > >> What kind of noise are they making? > > >> Cheers, > > >> Colin. > > > what is happening is that with the pistons completely retracted the > > pads touch rotors and make friction noise. > > I agree the breaks are critical for safety but so is the rest of the > > car - say the wheels fall off :-) > > As Colin said. Pads always touch ... If they are binding ... then do 2 > or 3 miles without braking and the rotors will be *hot*. Too hot to touch. > > Have you used coper paste between the pads/the pistons/the caliper? > > Most likely you have a very simple problem and you should not modify > anything the way you were suggesting. If you were to remove friction > material from the pad (you may have to do that if your brakes run *hot*) > you have to keep the pad perfectly flat. Else you will get a smaller > surface of the pad touching the rotor, the rotor will be damaged and > braking performance will be much worse. > > One way of reducing the thickness of the new pads (I will be killed now) > would be to use one old and one new pad on each side of the rotor for a > few miles, and at some point try replacing the old with the new pads. > This is how I used the Lucas pads I mentioned in my other post. > > I got the fire extinguisher ready. > :-) > Charles > > -- > Please remove _removeme_ to reply. I had my saab on the lift for a few days to fix the leak around the timing cover (dropped the engine and dismantled the suspension) and after I put the breaks back together the friction noise disappeared. I wonder if me touching the rotors with a bit oily gloves had something to do with it... No I did not use any copper paste.

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