Author Topic: Warm brake squeal  (Read 2244 times)

Offline slicksps

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Warm brake squeal
« on: 23 April 2009, 12:41 »
It's slowly coming back and I'm flummoxed.

One of my rear wheel bearings needed replacing for some time, towards the end, the brakes started a low pitched squeal when almost at a stop but only after lots of brake use. (Urban driving around London)

I finally replaced the bearings on both sides and gave the drums a good inspection and clean out. All noise problems went away completely. (there was a lot of grit in the bearing grease, someone must have done it carelessly by the roadside.

2 weeks later, that low pitch noise is starting again... it's very minor this time round. With careful clutch/brake control last time I could keep the note going on for as much road as I had. Now it's a brief whine when coming to stop. Again only when the brakes are warm.

Any ideas where I should look now?

From my biking days, I know that if the shoes hit the drums toe-first, they can make a nasty noise, but I'm sure that would happen when braking at high speed too, not just at around the 2mph mark. Correct me if I'm wrong, I'm still relatively new to cars.

jamie16v

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Re: Warm brake squeal
« Reply #1 on: 23 April 2009, 19:34 »
have the calipers been copper greased?.
sorry if im teaching your granny to suck eggs.. :tongue:

Offline slicksps

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Re: Warm brake squeal
« Reply #2 on: 23 April 2009, 19:46 »
Teach away, I know nothing.

It's coming from the rear and still have drums, should they be copper greased?

Offline Wayne

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Re: Warm brake squeal
« Reply #3 on: 23 April 2009, 20:13 »
Are you doing mostly short trips, if so then brake pads / shoes can glaze up and they then squeal, best bet is to take the car on a longer run and really warm the brakes up and see if it goes away.

Offline vdubnut

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Re: Warm brake squeal
« Reply #4 on: 10 March 2010, 15:05 »
wonder if this ever got solved...had rear bearings changed for mot but still squeeking and also sounds a bit like its kinda grinding? anything i can check or is it a give it a bit of a thrash to bed it in?