R8 rear brake pad rattle

R8 rear brake pad rattle

Author
Discussion

r8black

Original Poster:

1,405 posts

128 months

Monday 21st April 2014
quotequote all
What causes pad rattle and how do I solve it
Any help is appreciated
Stuart

goldvxr8

2,949 posts

165 months

Monday 21st April 2014
quotequote all
r8black said:
What causes pad rattle and how do I solve it
Any help is appreciated
Stuart
If thay are new pad thay do that and in time will be ok

r8black

Original Poster:

1,405 posts

128 months

Monday 21st April 2014
quotequote all
They have just been changed.

R8heron

96 posts

140 months

Monday 21st April 2014
quotequote all
When I got mine they put new pads on the rear for me and they rattled for about a month then gradually went

badboyburt

2,043 posts

176 months

Monday 21st April 2014
quotequote all
had rears fitted 2 weeks ago, never had any rattle, fitted the AP pads from Walkinshaw they come with a metal shim plate I presume it stops the rattling.

Ive heard about the rears rattling but in 5yrs of ownership i've never had it

mikeyb1987

2,356 posts

153 months

Monday 21st April 2014
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I'm pretty sure I've spoken to someone who had suffered this- maybe Moif?! I think it turned out the shim had been installed the wrong way.

I could be talking bks though laugh

badboyburt

2,043 posts

176 months

Monday 21st April 2014
quotequote all
Hard to put the shim in the wrong way it has an arrow cut into it and if not aligned properly the pins wont go through.

Where the shims fitted at all lol

moif

1,331 posts

159 months

Monday 21st April 2014
quotequote all
The shim had been put in the wrong way and it will fit the wrong way
The arrow has to polnt upwards or it allows the pads to move under braking
Wouldnt of believed it would of caused so much noise

r8black

Original Poster:

1,405 posts

128 months

Monday 21st April 2014
quotequote all
Just had one rear wheel off to have a look and the arrow was pointing upwards haven't checked otherside yet
But rattle is really loud but then if you keep brake on lightly rattle goes completely so must be pads can't believe that they would make so much noise

ARAF

20,759 posts

222 months

Monday 21st April 2014
quotequote all
At least it means that your pistons are returning fine. smile

What pads are they?

neiljohnson

11,298 posts

206 months

Monday 21st April 2014
quotequote all
Shims are the right way round

This the rattle you thought was the exhaust?

r8black

Original Poster:

1,405 posts

128 months

Monday 21st April 2014
quotequote all
neiljohnson said:
Shims are the right way round

This the rattle you thought was the exhaust?
Hi Neil yer I thought it was exhaust but appears to be coming from the rear calipers have been told that they do do this sometimes and should clear itself in time

neiljohnson

11,298 posts

206 months

Monday 21st April 2014
quotequote all
r8black said:
Hi Neil yer I thought it was exhaust but appears to be coming from the rear calipers have been told that they do do this sometimes and should clear itself in time
Well if it doesn't clear up once they bed in give me a call & I'll sort it for you

lee st

5,077 posts

164 months

Monday 21st April 2014
quotequote all
I think this may be a common problem. There is a pipe leading to the back brakes that rattles against the bodywork. I encountered it ages ago and took me a while to find and when I posted about it a few others had the same problem and couldn't find the location. It's a rear wheels off job and was the passenger side left side of the wheel arch. Start by just lightly pinging the tubes towards you with your finger. You will soon see which one it is if this is the issue. Fixes vary buy my stick pads with cable ties didn't last 5mins. Drill a hole in something nearby and cable tie is the best long term fix and got rid of mine and many others rattling problem.

r8black

Original Poster:

1,405 posts

128 months

Monday 21st April 2014
quotequote all
now lee that's really spooky because there's a black steel tubing pipe which I think is the brake line that runs up and bends around a corner which when pulled it springs back and forth and is one of my rattles I'd cable tied it and that sorted that one
But the pad Rattle is defiantly still there Also the heat shield above the back boxes both sides judder over bumps and I'd self tapped them flat that solved that ok

Edited by r8black on Monday 21st April 21:58

pah250

3,267 posts

154 months

Tuesday 22nd April 2014
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I had exactly this on my old R8. It sounded like I had a set of ladders on the roof as I went over bumps in the road as the pads were making so much noise. The rattle goes away if you lightly ride the brake pedal. Very annoying.

Had shim kit fitted from MF (a set of sticky pads with a GM label on the box) and the problem went away, but only for about 24hrs before it started again on the rear brakes. Same symptoms in that the rattle entirely goes away if you lightly touch the brake pedal.

The full fix for me was to remove the shim kit from the rear callipers, clean them out and have them re-fitted to the top of the calliper instead of the bottom, this way the pad rests on the calliper as normal and she shim kit just takes up the excess room between the top of the pad and the top of the calliper. The front brakes seemed fine with the shim kit installed in the normal way with the sticky pads stuck to the bottom of the callipers for the pads to sit on.


Strangely, this same problem has now developed on my E3 VXR8 GTS even though it still has the original discs and pads which haven't been changed from new... I haven't figured out if it's the front or rear pads/callipers yet, or if it's both, but I'm considering trying the shim kit again.

Hope this helps.