maximill666
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| posted on 10/7/09 at 08:47 PM |
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Raceleda Pad rattling
Anyone have any ideas how to stop the pads rattling on Raceleda 4 pot calipers when not being applied?
Or is it just something that has to be put up with?
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INDY BIRD
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| posted on 10/7/09 at 08:49 PM |
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mmmm i know the feeling mine also do that especially if you just rock the car back and forward,
would like any ideas also
sorry couldnt help though
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blakep82
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| posted on 10/7/09 at 08:57 PM |
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i know copper grease is mainly used to stop brake pads squealing, but would it help stop them rattling?
________________________
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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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a4gom
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| posted on 10/7/09 at 09:05 PM |
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I have outlaw calipers they are very similar infact they could be the same with a different name cast on, anyway I've chosen to live with it.
Copper grease will help but notstop it for long. I have however seen some use double sided sticky pads between the pad and the pistons, others do
something with a spring from a biro on the retaining pin and others use the standard pressed retaining from a standard car model (can't
remember which) there have been quite a few threads on the subject so have a search. If you can't find it on here check on WSCC, it could have
been on there.
have a look at this, means new pads or grinding
your tabs off though
[Edited on 10/7/09 by a4gom]
[Edited on 10/7/09 by a4gom]
Andy
Perfect planning prevents pi$$ poor performance!
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maximill666
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| posted on 10/7/09 at 09:28 PM |
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Cheers a4gom thats great 
Thanks
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tonym
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| posted on 11/7/09 at 08:40 AM |
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Try a bit of silicon sealant on the back of the pads
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richardh
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| posted on 11/7/09 at 10:44 AM |
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good ideas. i'm fed up with the rattle too
Time for a change!
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stuart_g
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| posted on 11/7/09 at 02:55 PM |
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All you need to do is increase the size of the sleeve that the retaining bolt goes through. I think when I measured up it needs to be 12mm rather than
the 9mm I think it is now. If you have the Raceleda discs your pads will overhang the disc so the sleeves can be the same thickness all the way
accross. If you get discs that fit properly (257mm) then the sleeve will need to be 8mm in the middle for the disc to clear and 12mm each end.
[Edited on 11/7/09 by stuart_g]
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procomp
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| posted on 13/7/09 at 06:58 AM |
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Hi
It's a common problem with the outlaw's which is what the raceledas are with a different name etched on them. It's due to the lack
of wear shims where the pads are effectivly sitting and as said the pins to small in diameter. It needs to be stopped from happening as the pads will
start to wear the caliper body away and create a ridge which the pads can dig into giving all sorts of problems later in there life.
But to be fair these are the sort of calipers that the Americans treat as disposable items hence very cheaply made and do not come with the stainless
shims that other caliper manufacturers engineer in to the desighn.
Cheers Matt
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spdpug98
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| posted on 13/7/09 at 08:04 AM |
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quote:
Originally posted by stuart_g
All you need to do is increase the size of the sleeve that the retaining bolt goes through. I think when I measured up it needs to be 12mm rather than
the 9mm I think it is now. If you have the Raceleda discs your pads will overhang the disc so the sleeves can be the same thickness all the way
accross. If you get discs that fit properly (257mm) then the sleeve will need to be 8mm in the middle for the disc to clear and 12mm each end.
[Edited on 11/7/09 by stuart_g]
A bit off topic-
This is something I noticed when I built my car, why do they supply a 'differant' disc size with the callipers.
Has anyone changed their discs so that they fit correctly within the calipers/pads.
It does seem strange that the lower 10/12mm of the disc does not get used, and then have an overlap from the pads as they wear
[Edited on 13/7/09 by spdpug98]
My Blog: http://spdpug98.wordpress.com/
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stuart_g
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| posted on 13/7/09 at 08:46 AM |
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I looked into this for a long time. The hardest part was finding a disc of the correct offset and size as a cortina disc is 248mm. I also looked into
different manufacturers brake pads but they were virtually all the same size.
The only thing I came up with was to fit a 260mm escort solid disc and have it turned down to 257mm. These discs are almost the same offset as Cortina
and just required a washer placed between the caliper and mounting bracket to bring the caliper back to the centre of the disc. I got these from Hi
Spec Motorsport in Dartford as they were the only company I found that could actually help with the problem. The result as you can see in the pictures
is that the whole of the pad is now in contact with the disc increasing the area of contact on the disc. Hi Spec didn't even charge for turning
the discs down.
I didn't get my lathe up and running before I sold my car otherwise I would have made the larger retaining sleeves to stop the pads rattling so
much. If the sleeve is bigger in diameter it will hold the pad further into the caliper against the body so the pad will not be able to twist and move
forwards and backwards thus eliminating the rattling. Don't make the sleeves too tight though as you do not want to restrict the pads movement
and risk the pad binding.
I think this is a mod well worth doing.
 
R16 New disc at hub
[img][/img]
[img][/img]
[Edited on 13/7/09 by stuart_g]
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spdpug98
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| posted on 13/7/09 at 08:51 AM |
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quote:
Originally posted by stuart_g
I looked into this for a long time. The hardest part was finding a disc of the correct offset.
The only thing I came up with was to fit a 260mm escort solid disc and have it turned down to 257mm. These discs are almost the same offset and just
required a washer placed between the caliper and mounting bracket to bring the caliper back to the centre of the disc. I got these from Hi Spec
Motorsport in Dartford as they were the only company I found that could actually help with the problem. The result as you can see in the pictures is
that the whole of the pad is now in contact with the disc increasing the area of contact on the disc. Hi Spec didn't even charge for turning the
discs down.
I didn't get my lathe up and running before I sold my car otherwise I would have made the larger retaining sleeves to stop the pads rattling so
much. If the sleeve is bigger in diameter it will hold the pad further into the caliper against the body so the pad will not be able to twist and move
forwards and backwards thus eliminating the rattling. Don't make the sleeves too tight though as you do not want to restrict the pads movement
and risk the pad binding.
I think this is a mod well worth doing.
Thanks, just what I was looking for. I just wish I had seen this mod before I finished building mine.
I will have to add to my 'mod' list
My Blog: http://spdpug98.wordpress.com/
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