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Tips for stripping down calipers and/or rebuilding
Posted: Thu Jul 07, 2011 7:48 am
by Mikewazowski
So I got my R31 struts into the front of my 610 wagon a few nights ago, but now the front brakes are stuck on all the time. I went for a really short drive to see if they would loosen up and it maybe worked (hard to tell), but as soon as I put the brakes on they stay on. When it is jacked up I can't rotate the wheels by hand most of the time. It seems like the problem must be in the calipers so I'm going to take them off and inspect them; I guess the piston is sticking and failing to return or something?
Are there any tips for taking the calipers off and taking them apart to inspect and/or rebuild them. Any things I should or should not do?
Cheers
Michael
Re: Tips for stripping down calipers and/or rebuilding
Posted: Thu Jul 07, 2011 10:11 am
by DJZ
Make sure you can get parts before stripping them would be my only advice.
I had my two HR31 calipers rebuilt by Safe'r'brakes and it was about $60 from memory, that was a couple of years ago.
Re: Tips for stripping down calipers and/or rebuilding
Posted: Thu Jul 07, 2011 9:59 pm
by 85_Z31
They are pretty easy to DIY rebuild, BNT stock the seal kits, the grease and even replacement pistons.
all you need is a brake cylinder hone from repco and a decent de grease / cleaning facility
Mike The R31 calipers are the same as my 300zx single pots, I have a Nissan Factory service manual if you would like me to photocopy the pages and send them to you.
Its a dirty job but they are pretty simple to do, the only reason to worry would be i the bore of the caliper was damaged which is possible if the piston is really stuck in there.
Good luck anyway.
Re: Tips for stripping down calipers and/or rebuilding
Posted: Fri Jul 08, 2011 8:03 am
by Mikewazowski
Sounds good. Thanks for the tips.
Sounds like my first port of call is to strip them down and see if I can find out why they are sticking and then go from there.
I'd be keen as for those pages James. I've sent you a PM with my email. Cheers!