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nuggitt
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PostPosted: Mon Sep 21, 2015 3:29 pm    Post subject: Brake caliper services Reply with quote

I noticed a couple of months ago that my rear brake disc was starting to bind a bit. I gave the rear caliper a good clean up and pumped out the pistons a little so I could clean all the crud of them. Put the caliper back on and pressed the rear brake pedal and it was the same. I've never changed the M/C internals so thats what I did next. Thinking this would cure it, but it didn't. Took the caliper off again to get the pistons out completely. Try as I may they wouldn't budge and not having the luxury of a compressor I was finding it a bit of a pig. Also my good friend Mike (roadrunner) was away on his hoilday in the lakes.

I had a look on the internet and found a company called Powerhouse in Chesterfield.

Gave them a call and spoke to a lad called Dave. He told me they'd get out the stuck pistons, blast all the old black paint off and re-coat them with a tough heat resistant colour-fast solvent based coating which they oven bake. Then fit the OEM seal kit and re-fit the pistons. 2 new nipples and nipple covers. Then send them back with parcel force all for 69.00. I've just fitted the caliper back on and bled the system and everything is perfect. nod

Some photos.











The company is called Powerhouse
Unit 7
Carr Wood industrial estate (phase 1)
Sheepbridge
Chesterfield
S41 9QB

Tel 01246 260665

Email address enquiries@powerhouseautomotive.co.uk
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Stig
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PostPosted: Mon Sep 21, 2015 4:27 pm    Post subject: Reply with quote

Did they supply the necessary parts and were they gen Yam items?
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nuggitt
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PostPosted: Mon Sep 21, 2015 4:51 pm    Post subject: Reply with quote

Yes to both. thumbsup
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Fatdog
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PostPosted: Tue Sep 22, 2015 12:09 pm    Post subject: Reply with quote

Nice job they have done there and for that price it's hardly worth doing it yourself!
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I know when I did mine a while back the pistons were a bugger to get out (the seals tend to weld themselves to the pistons).
I bought a tool that grips the inside of the piston and with a bit of force and WD40 got them out (still it was hard work!)
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Stig
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PostPosted: Tue Sep 22, 2015 12:12 pm    Post subject: Reply with quote

I bought a piston puller that had a slide hammer

Prob was that the largest insert wasn't big enough so I made a custom sized item for the rear caliper
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YAMAEXUP
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PostPosted: Wed Oct 07, 2015 11:59 am    Post subject: Reply with quote

My FJ1200 rear caliper started off looking like this when I first bought the bike



The pistons were quite badly seized in the caliper halves but by using the hydraulic system as a pump I was able to remove both pistons & to clean out the caliper bodies



Somebody else must've attempted to remove the pistons by force as they're damaged







With a bit of work they cleaned up ok



But the caliper half seals needed replacing



But the front calipers had also been mullered


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Stig
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PostPosted: Wed Oct 07, 2015 12:32 pm    Post subject: Reply with quote

Dremmel with a fine brass wire wheel is ideal for cleaning out the grooves behind the seals nod
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