[alfa] Re: Rattling brake pads

[Joe Elliott <jee@xxxxxxxxxxxxxx>]

But if there's axial slop in the piston-pad-disc assembly, then your 
pedal travel is going to be longer than it needs to be.  If that's 
the case, I would recommend some kind of shim, although I don't 
understand why this piston wouldn't just stay put after pressure is 
released.  Perhaps the problem lies with the master cylinder or 
pressure regulator, and it's only apparent on the new caliper because 
the pistons on the other side are too crusty to move that freely in 
their bores.

-Joe


At 3:30 PM +0000 7/1/04, alfa-digest wrote:

> Date: Thu, 1 Jul 2004 19:36:55 +0930
> From: "The Baylys" <dabaylys@domain.elided>
> Subject: Re: [alfa] Rattling brake pads
>
> Mark,
>
> you can buy 'anti-squeal' which is just a rubber/silicone compound you apply
> to the backing plate of the pad where the piston touches.  A smear of this
> should fix the noises.
>
> Then again, the noise will likely disappear after a few miles.
>
> Beatle
> Oz
> - ----- Original Message -----
> From: "Mark Denovich" <denovich@domain.elided>
> To: <alfa@domain.elided>
> Sent: Thursday, July 01, 2004 10:25 AM
> Subject: [alfa] Rattling brake pads
>
>
> >  Put new pads (Carbotech Hawks) and rotors all the way around on my '86
> >  Spider.   I also replaced the driver's rear brake caliper as the
> >  piston was hopelessly stuck in the bore.   I was low on patience and
> >  shelled out the $100 for a refurb unit.
> >
> >  Everything works great.  The new pads kick ass.   The only problem is
> >  that in the newly replaced caliper the pads flop around a bit and make
> >  noise.   It seems like the pistons retract far enough to allow them to
> >  move around and make noise.   This noise goes away with the lightest
> >  touch on the brake pedal.   I confirmed that the pads have a ton of
> >  clearance at rest, and that nothing else is loose.   Pad spring is
> >  properly installed.
> >
> >  Should I just live with it?   I only hear the noise when I'm driving
> >  next to a Jersey barrier where it is reflected back at me.
>  >
> >  --Mark
> >
> >  PS:  The Alfa Wiki is currently off-line.  For some reason power
> >  problems only seem to occur when my sysadmin is on vacation.   It's
> >  hosted for free so I can't really complain.   Need to invest in UPS.
>  > This also explains the gmail.com email address.
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