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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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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span lang=3DEN-US>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.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>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.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>The results were staggering in that there was no difference =
whatsoever.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>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.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p> </o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>All suggestions =
welcome.<o:p></o:p></span></p></div></body></html>
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