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Darryl Watson
Experienced User
Username: inox

Post Number: 176
Registered: 04-2015
Posted on Tuesday, 02 August, 2022 - 21:23:   Edit PostDelete PostView Post/Check IP

Hi,
The right-hand front brake on our 1991 Mulsanne S squeals when the brakes are applied at low speed. The squeal is LOUD! The L/H is OK.
It is Ok for one to two miles then it starts squealing.
The disc (rotor) was replaced in 2018 since when less than 5000 miles have been covered. I have rubbed the disc with medium wet and dry paper.
I tried chamfering the edges of the (Ferodo) brake pads, (replaced 2017 less than 6000 miles of use), to no avail.
I have now fitted new Ferodo pads (again). Still squealing.
Copper grease has been applied to the back and sides of the pad. The pads are free to move when the pistons have been pushed in a little.
I can sense that one of the front brakes is a little slow to release. Less than a second.
I have a couple spare leading & trailing used callipers. Before I swap them over does anyone have any ideas please?
Many thanks,
Darryl
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michael vass
Frequent User
Username: mikebentleyturbo2

Post Number: 753
Registered: 07-2015
Posted on Wednesday, 03 August, 2022 - 05:59:   Edit PostDelete PostView Post/Check IP

Just curious , I wonder what would happen if you swapped them left to right?
They would then be working in the opposite direction.
Mike
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David Gore
Moderator
Username: david_gore

Post Number: 4109
Registered: 04-2003
Posted on Wednesday, 03 August, 2022 - 09:30:   Edit PostDelete PostView Post/Check IP

Is there any possibility there is a mix of "hard" and "soft" pads installed on the RH front calliper?

There could have been an accidental mixing of pad types before you purchased them - unlikely but should not be ignored.

.
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Mark Aldridge
Frequent User
Username: mark_aldridge

Post Number: 806
Registered: 10-2008
Posted on Wednesday, 03 August, 2022 - 19:02:   Edit PostDelete PostView Post/Check IP

If you can beg the use of an MOT brake tester, do the brakes pull up and release evenly ?
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DougMartindale
Unregistered guest
Posted on Wednesday, 03 August, 2022 - 03:24:   Edit PostDelete PostView Post/Check IP

I had noisy pads even after replacing as well.

I was pointed to a factory shim, used on the Shadow, but still fitted to my 96 conti. Brake Pad Shim (UG12435).

Ordered from Introcar. Zero issues since and inexpensive.

(Message approved by david_gore)
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Darryl Watson
Experienced User
Username: inox

Post Number: 177
Registered: 04-2015
Posted on Monday, 08 August, 2022 - 17:57:   Edit PostDelete PostView Post/Check IP

Thanks for everyone's input.
The brakes squealed after a period time with the previous pads. The new pads were sealed so hopefully were all the same.
Car had MOT in July no advisories.
I have ordered a set of shims from Heaven's Gate in Germany. Introcar were out of stock and FS listed as no longer available.

Fingers crossed

Regards,

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