Rear brake calliper fitting
Rear brake calliper fitting
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Discussion

Pedders

Original Poster:

269 posts

307 months

Saturday 27th July 2013
quotequote all
I don't suppose someone could tell me what I have done wrong here? It's as if the caliper bracket is too thick/ the threaded holes are 5mm too far away from the disc. As such, the calliper won't go on.

I have checked that the hubs are on the right sides of the car, which was about the only thing I could think of, and per the stamping it would appear I have...

Many thanks all!



Ps sorry about the photo orientation - can't seem to get it to post the right way around - nothing's going right today!

Edited by Pedders on Saturday 27th July 13:00

AndreasW

102 posts

184 months

Saturday 27th July 2013
quotequote all
Maybe you have mixed up front- with rear- adapters?

Pedders

Original Poster:

269 posts

307 months

Saturday 27th July 2013
quotequote all
AndreasW said:
Maybe you have mixed up front- with rear- adapters?
Thanks Andreas - but it's not that. Turns out I hadn't got the disc mounted on the hub right....

Sorry to have wasted your time.

UltimaCH

3,181 posts

212 months

Saturday 27th July 2013
quotequote all
Put a bit of copper grease around the hub and mating surfaces. This should make assembly and removal easier. I also found that a minimum of 3 wheel nuts and washers tightened gently and evenly gets the disc on the hub with minimum fuss and hassle.

Pedders

Original Poster:

269 posts

307 months

Sunday 28th July 2013
quotequote all
UltimaCH said:
Put a bit of copper grease around the hub and mating surfaces. This should make assembly and removal easier. I also found that a minimum of 3 wheel nuts and washers tightened gently and evenly gets the disc on the hub with minimum fuss and hassle.
Will do. Cheers UltimaCH.

Pedders

Original Poster:

269 posts

307 months

Saturday 10th August 2013
quotequote all
I am clearly hopeless as I am still struggling with this. I have the one rear disc on and in the right place (ie centred nicely in the calliper), but it was hard work (involving lots of rubber mallet application and tightening of bolts).

I have now moved on to the other, and it"s proving even harder to get in the right place (ie close enough to the mating surface of the hub), and I am worried I am doing something wrong, or just over thinking it and so should thump it harder!

Any thoughts would be much appreciated, before I return with mallet in hand!

carlpea

381 posts

162 months

Saturday 10th August 2013
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I don't know if it's just the picture but the holes don't look central to the adapter. Should it be rotated 180?

Pedders

Original Poster:

269 posts

307 months

Saturday 10th August 2013
quotequote all
carlpea said:
I don't know if it's just the picture but the holes don't look central to the adapter. Should it be rotated 180?
Thanks Carlpea. Those holes aren't centred, but it would seem that is how it is supposed to be. The problem was me being a wimp. The AP instructions that come with the brake kit state that when temporarily fitting the disc, you should only tighten the wheel nuts to 14nm.

As such, was afraid of damaging anything by over tightening. To get the disc flat on the hub, though, I had to tighten it a bit more, working so as to apply pressure evenly on the disc, and tapping with a rubber mallet to assist. All sorted now.


srreck

529 posts

284 months

Sunday 11th August 2013
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This is how mines are fitted...


macgtech

997 posts

182 months

Monday 12th August 2013
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The disc assembly isn't fully seat on the hub - there should be about 8-10 mm of hub poking through the middle of the disc...

Pedders

Original Poster:

269 posts

307 months

Monday 12th August 2013
quotequote all
macgtech said:
The disc assembly isn't fully seat on the hub - there should be about 8-10 mm of hub poking through the middle of the disc...
That was exactly the problem. Got there in the end - many thanks for the replies, all.

macgtech

997 posts

182 months

Tuesday 13th August 2013
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Pedders said:
That was exactly the problem. Got there in the end - many thanks for the replies, all.
Glad you got it sorted

UltimaCH

3,181 posts

212 months

Tuesday 13th August 2013
quotequote all
Did you put a smear of copper grease behind and around the hub mating surfaces?

Pedders

Original Poster:

269 posts

307 months

Wednesday 14th August 2013
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UltimaCH said:
Did you put a smear of copper grease behind and around the hub mating surfaces?
I did, thanks UltimaCH. On a similar vein, I vaguely recall a recommendation somewhere to put copper grease on the back of the brake pads (not the friction material side....) as a way of reducing brake squeal. Not sure whether this is a good idea or not?

UltimaCH

3,181 posts

212 months

Wednesday 14th August 2013
quotequote all
Pedders said:
I did, thanks UltimaCH. On a similar vein, I vaguely recall a recommendation somewhere to put copper grease on the back of the brake pads (not the friction material side....) as a way of reducing brake squeal. Not sure whether this is a good idea or not?
Some do, some don't. If you do, a very thin smear on the back may avoid rusting of the pad and piston. You need to smear some copper grease on the edges of the calliper top and bottom where the pads side in. Again, don't overdo the smearing. A little goes a long way