[Healeys] Squealy Brakes

[Alan Seigrist]

The anti squeal shims on my BJ8 have worked flawlessly for 20 years.  I
think the deal is there are a few different patterns of the shims and if
you get the wrong ones they don't work well.  I had another set of shims
and they squealed then I got ones with a different shape and they work
well.

On Tue, Apr 16, 2024 at 8:44 AM m.g.sharp--- via Healeys <
healeys at autox.team.net> wrote:

> Hi all,  I have had intermittent squealy brakes on my BT7 the last year or
> so.  I got it out of hibernation a week ago and the squealing is worse, it
> seems.  I don’t mind heads turning when I pull up at a light, but not
> because it sounds like I just ran over a cat.
>
>
>
> I put new pads in a few years back and installed the anti-squeal shims,
> but they did not work.   Today I pulled out the pads, tossed the shims and
> lightly rubbed the pads on a sheet of #120 emery on a plate of glass, just
> to take the sheen of the friction side and ensure the backs were flat.  I
> took a file and gently broke the leading and trailing edges of the friction
> material, as the edges were quite sharp and though one could be catching.
> I then cleaned the pads with brake part cleaner.   I also lightly used
> emery on the disks to remove any glaze.   I had gone to my local auto parts
> supplier to see if  they had any anti-squeal shims but they don’t sell them
> separately from the pads.  However, they highly recommended a Permatex
> product with the promising name “Disc Brake Quiet” [sic].   This I applied
> per the instructions, spraying it on the back of the pads.  I blew the dust
> out of the calipers and, as best I could, checked the pistons for
> irregularities where they bear on the pads.  The calipers were re-built
> about 5 years ago with stainless pistons and they looked as new.  Retaining
> pins were cleaned and very lightly greased.  I re-assembled everything and
> went  out for a test drive.
>
>
>
> The results were staggering in that there was no difference whatsoever.
>
>
>
> So folks – any good ideas out there?  I am wondering if should switch out
> the pads, but mine are barely worn and I am not sure I have record of what
> I put in, so may end up with the same make.  Other than that, I am
> flummoxed.
>
>
>
> All suggestions welcome.
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