d8mok
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| posted on 23/11/06 at 07:43 PM |
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bleeding wilwoods
We've just been trying to bleed my new wilwoods.
1 side is fine but the second side is gripping the disc even when the pedal isn't being pressed.
Is it air still i n the calipers? or do pistons need pushing bk in or something??
i'm a bit boggled?
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fesycresy
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| posted on 23/11/06 at 07:57 PM |
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Just check that the disc is centralised in the caliper and not offset. This would cause clamping of the pad and not spin freely.
Did you make the mounts yourself ?
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The sooner you fall behind, the more time you'll have to catch up.
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d8mok
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| posted on 23/11/06 at 08:00 PM |
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no i bought the mounts.
it span clearlly before we started bleeding them. It looks like the pistons are sticking out a little bit- like 1mm. We tried pusing them bk in but
they come bk out. Do i need to unscrew the nipples and push pistons bk?
cheers
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RazMan
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| posted on 23/11/06 at 08:23 PM |
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Is the caliper sitting central over the disc? If the pads are brand new it might take a few miles to get them to ease up but it is normal for some
slight rubbing at first - it will probably ease once on the road but check to make sure they don't get too hot. You might try bleeding them
again if all else fails.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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d8mok
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| posted on 23/11/06 at 08:40 PM |
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hi,
yeh the disc is central in the caliper. The other side spins fine but this side u cant even turn. Definetly something wrong. If there was air in the
caliper would it do this?
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RazMan
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| posted on 23/11/06 at 08:43 PM |
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Hmmm it sounds like a seized piston which is unlikely if the caliper is new.
I would undo the bleed nipple and push tyhe pistons right back, then bleed again. It might free it up - certainly worth a try.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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d8mok
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| posted on 23/11/06 at 08:47 PM |
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yeh i'll try that now i think. I'll keep u posted.
thanks for ur help
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INDY BIRD
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| posted on 23/11/06 at 09:35 PM |
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I had the same problem.
The piston was sticking out about 1-2 mm and i got it replaced then had no probs.
Must say had to centralise the disc with 1mm washers to make it work in the end.
it is a problem that has risen a couple of times apparently.
you have to space 1 side to make the disc centralise.
hope you get it resolved.
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d8mok
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| posted on 25/11/06 at 01:14 PM |
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right, i 've bled the brakes so there def isn't air in the system. Any1 got any more ideas? Could there be a problem with the caliper?
cheers
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RazMan
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| posted on 25/11/06 at 02:29 PM |
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I suppose the next step would be to pop the pistons out and make sure that they are not sticking in the bores - maybe swap them round to eliminate any
tolerance issues?
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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