Paul G
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| posted on 19/6/06 at 11:06 AM |
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Wheel Squeal!
Morning all,
Got an annoying squeeling noise coming from my front driverside wheel. I took the brakes off, put loads of copperslip on the back of the pads but it
still does it. I'm pretty sure its the brakes cos it goes off when I press the brake pedal but is it possible it could be a wheel bearing - and
when the brakes are applied they clamp the disc in a more upright position so the wheel is held steadier, hence not not causing the noise from the
bearing? It also doesnt do it when there is no weight on the front wheel.
Cheers
Paul
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mookaloid
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| posted on 19/6/06 at 11:24 AM |
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Have you checked for stones etc stuck in there somewhere?
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Danozeman
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| posted on 19/6/06 at 12:10 PM |
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It could be the bearing squeeking. Are they new? Is there any play in the brg to allow the disc to move slightly so it rubs the pad?
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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Marcus
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| posted on 19/6/06 at 12:17 PM |
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More likely to be a sticking caliper. Mine's doing exactly the same - just saving up for Wilwoods!
If you drive the car very slowly and dip the clutch, does the car come to a slightly abrupt halt or not. You shouldn't be able to detect
yourself actually stopping if the calipers are free. (does that make sense?)
Marcus
Because kits are for girls!!
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Peteff
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| posted on 19/6/06 at 12:38 PM |
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Jack the offending wheel up and rock it top to bottom and side to side with the steering locked, then try it with the brake on to see if it is
different, spin the wheel to see if it's sticking and if there's any roughness in the bearing. Get physical with it.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Paul G
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| posted on 19/6/06 at 12:39 PM |
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Yep checked for stones there doesnt seem to be anything stuck in there. I didnt replace the front bearings when I built it cos they
'seemed' ok but there doesnt appear to be any wobble or play in it. I've also tried spinning the front wheels and they both spin
freely enough so I'm not sure if the caliper is sticking or not. I really dont know what it is, perhaps I should just take it to a garage to
see what they think. Just been for another drive and it only seems to do it after a bit when everythings warmed up, so I dont know what that can
point to.
I'll try pulling at the wheel with the brakes on to see if that does anything.
Cheers for the suggestions 
[Edited on 19/6/06 by Paul G]
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nitram38
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| posted on 19/6/06 at 02:51 PM |
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Single piston calipers have small sliders inside small bellows type rubbers. This allows the caliper to 'float' side to side and makes
sure that both pads recieve equal pressure.
Common cause of sticking is gummed up or rusty sliders.
Just undo the nuts on these and check to see if they are free. If not take them apart and give them a good clean. Rebuild but put some copper grease
inside. If the rubbers have holes in, replace them.
Common case of failure is water or brake dust getting inside to foul them up.
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Syd Bridge
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| posted on 19/6/06 at 03:52 PM |
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Glazed pads and discs will do exactly as you describe. Take the pads out and rough them with emery, if it still happens, then go looking for something
more sinister.
Cheers,
Syd.
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Lawnmower
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| posted on 19/6/06 at 04:15 PM |
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quote:
Originally posted by nitram38
Single piston calipers have small sliders inside small bellows type rubbers. This allows the caliper to 'float' side to side and makes
sure that both pads recieve equal pressure.
Common cause of sticking is gummed up or rusty sliders.
Just undo the nuts on these and check to see if they are free. If not take them apart and give them a good clean. Rebuild but put some copper grease
inside. If the rubbers have holes in, replace them.
Common case of failure is water or brake dust getting inside to foul them up.
Was going to suggest this too, Common on MX5's
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Paul G
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| posted on 19/6/06 at 04:46 PM |
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Cheers fellas I'll give the pads a good scrub and check out the sliders - thinking back now when I reconditioned them I seem to remember one of
the sliders was slightly bent, but just whacked it with a hammer to sort it.... maybe thats the problem!!
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Paul G
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| posted on 20/6/06 at 07:21 AM |
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- It was a problem with the sliders on the caliper, they just weren't sliding! I'd packed them ful of grease when I rebuilt them but must
have used the wrong stuff it had all but gone and the slider had siezed in the rubber. I used copperslip instead and it now moves freely and the
noise has gone
Cheers for all the suggestions and help
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zxrlocost
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| posted on 20/6/06 at 08:47 AM |
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now fugging whale it down the road
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Paul G
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| posted on 20/6/06 at 08:53 AM |
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Off out to do just that in a min!
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