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Rear calipers - Exchange units don't fit.

Posted: Sun Mar 01, 2009 9:13 pm
by impmad2000
Ok, the refurb'd calipers might look great, but they don't fit.
The Caliper body fouls on the disk.
Image
so that I can't get the 2nd bolt in.
Image
as you can see on this picture, there's an offset so the disk doesn't sit in the middle.
Image
Are the rears different, on the early SC's ? The rear suspension arms are the Ali ones, with the later type roll bar hook up (Drop links bolt onto the arms) Should the disk run in the centre of the caliper ?
Cheers
Tim

Re-built Calipers

Posted: Sun Mar 01, 2009 10:50 pm
by Mike Smith
Why not return them from wence they came ?

Posted: Sun Mar 01, 2009 11:29 pm
by jwhillracer
Did you fit the later hubs when you changed to the alloy arms? The early hubs for the steel arms will give the wrong offset.

Cheers! :drunken:

JW

Posted: Mon Mar 02, 2009 6:13 am
by Alan @ CanfordClassics
Hi,

It looks like a front caliper to me

Can you send any more pics?


Alan

Re: Re-built Calipers

Posted: Mon Mar 02, 2009 6:46 am
by impmad2000
UUL442 wrote:Why not return them from wence they came ?
Absolutely, I just want to be sure of the differences to avoid getting the wrong ones again :)
jwhillracer wrote:Did you fit the later hubs when you changed to the alloy arms? The early hubs for the steel arms will give the wrong offset.
Yes, these arms and hubs are a set.
Alan.UK wrote:it looks like a front caliper to me
Can you send any more pics?
I'll take some more pictures
Tim

Posted: Mon Mar 02, 2009 7:21 am
by Nick Moss
Looks like a front caliper to me too.

Posted: Mon Mar 02, 2009 7:28 am
by mycar
I had exactly the same problem. Thought I must be missing something and spaced the calipers so the disk sits centrally.

It never occured to me that the calipers I got back may be exchange units... surely not. I`ll find out this morning.

One thing for sure though, when I bolted them in place the inside piston was pulled right against the disk.

Mike.

Posted: Mon Mar 02, 2009 7:31 am
by Alan @ CanfordClassics
On some cars the rear brakes were spaced out by the brake shield. If this is missing the caliper will pull up tight to the disc.

Alan

Posted: Mon Mar 02, 2009 8:41 am
by impmad2000
I managed to upload this picture before the Net connection at home went !
Image
Tim

Posted: Mon Mar 02, 2009 9:19 am
by Alan @ CanfordClassics
Yeap, that's a front 3 inch ear caliper for vented discs.

These are rears. The metal hard line connects from the end (front brakes it is the middle) and the pistons are much smaller.

Image

HTH

Alan

Posted: Mon Mar 02, 2009 10:07 am
by impmad2000
:oops:
I wander If I'm tring to fit a front caliper on the back !!
I need to check the other calipers. Its been such a long time since I took this lot apart !! 2 Years almost exactly !!
But I thought the front I took off had a larger pad and not the small square one... Bearing in mind that this car is a Bitza !! (would be '77/78 ish)
Time to take another look :)
Cheers for your help.
Tim

Posted: Mon Mar 02, 2009 7:30 pm
by impmad2000
Here's what I've got and yes, sure enough the old rear pads fit what I thought were the front calipers.
Sorted :)
But the old front pads don't fit the new front calipers !!
So in fact it still looks like I have the wrong calipers, but fronts now, not rears !! yes ?
Image

Posted: Mon Mar 02, 2009 7:36 pm
by mycar
Alan.UK wrote:On some cars the rear brakes were spaced out by the brake shield. If this is missing the caliper will pull up tight to the disc.

Alan
Classicar Automotive assured me they didn`t exchange calipers in for refurb. As he put it, `where would we find any of those to swop them?`

As you say Alan, it must be the brake shields that did the spacing but as mine are missing and they are NLA, I may never know.

Anybody got a set of breakshields they don`t need?

Regards, Mike.

Posted: Mon Mar 02, 2009 7:47 pm
by Alan @ CanfordClassics
Hi Mike,

I have some (the bits you need) you are welcome to have.

Alan

Posted: Mon Mar 02, 2009 7:49 pm
by Alan @ CanfordClassics
Hi Tim,

If it helps call me tomorrow and I can talk you through all the changes and sizes.

Alan