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PostPosted: Thu Apr 05, 2007 2:53 pm 
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Joined: Tue Jun 06, 2006 8:47 am
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Location: Kellyville, NSW
Blokeinamoke wrote:
pristic wrote:
Guys, It looks like your talkinig about 2 seperate things (as Doc mentioned)
There are anti-squeel shims (I have some, old, can be used as a template if you want (soon as I find them)

The other part is the Spring that sits across the two pads... retaining spring.
Ive never seen one, dont think they came on 7.5" disks (cooper) and are generally not needed... thats whats causing the tink tink I believe.

Peter.


you surely do need them. A previous car I had had the springs and I also followed the opinion that they were no necessary, that was until the pad material seperated from the backing plate. The cause was the pad rattling around had weakened the back of the friction material.

You really dont want that to happen at speed.

You can get larger ones and then cut them down and then curl the ends so they all fit. Thats what I do to great effect and never had a problem.


What I am saying is I dont think Cooper S ones ever came with them, so out of the factory not needed... and still not on 7.5" disks... the 8.4" or the 7" Cooper ones may have had them.

I agree there would be nothing wrong with putting them in if you can get some though.... but I have never seen them.

Peter.

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PostPosted: Thu Apr 05, 2007 6:21 pm 
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998cc
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Joined: Wed Sep 22, 2004 5:46 pm
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Location: Melbourne
:wink:
Cooper 'S' 7.5 " brakes don't have an anti rattle spring they have an anti squeal shim. 997 Cooper brakes had the anti rattle spring but 998 Cooper brakes are similar to Cooper'S' in that they use an anti squeal shim only.
The anti squeal shim part no is 3628-410 (Lockheed No) and is made of stainless steel. If I remember correctly it also has a slight curvature so that it lightly holds the pad against the disc and stops the rattles.
They used to come in the Lockheed pad kit along with the galvanised split pins to hold the pads in the caliper. You only seem to get the pads by themselves these days. No shims and no split pins!

RonR


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PostPosted: Thu Apr 05, 2007 7:44 pm 
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Location: near Baulkham Hills, NSW
What Ron said ^^^
I dunno about them being stainless, all mine were rusty... :wink:

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PostPosted: Thu Apr 05, 2007 8:09 pm 
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Heh,

Yeah, mine are all rusty too! Still ok to make a template though... if I can ever find em

Peter.

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PostPosted: Fri Apr 06, 2007 9:49 am 
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998cc
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Location: Melbourne
:?:
I'm no metallurgist but stainless isn't allways non rusting. If I remember correctly from my school days it will rust if it's in contact with some types of non stainless steels. Depends on the type of stainless, what its in contact with and the conditions, wet,dry etc.
You have to be careful if you replace steel studs, nuts, bolts etc with the stainless type expecting them to be non rusting.

RonR


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