squealing brakes

6Bcygnet

6Bcygnet

Member
1971 P6B I've just replaced the front pads and found that someone in the past had lost the damping shims and replaced them with thin sheets of brass.
I can't find any replacement shims and have put the brass shims back in.
They do not work and the brakes squeal horribly at low speeds.
Does any one know where I can find damping shims?
I've tried Rimmers, Scotts and one or two less likely places.
Any other solutions?
 
A business that wrecks Rovers, Land Rovers etc would / should have the parts, second hand of course, but nothing wrong with that in this case.

On the subject of squealing pads,..I assume that the brass shims were in with the last set of pads, and now back in with the new set, but in this instance they squeal?

I have used pads in the past that were dreadful, squealing all the time, while a different brand were as quiet as a lamb. What brand of pads are they?

Ron.
 
Thanks. I've used Bendix DB 554 AD and yes I'll try a breakers yard.
Whilst we are on the topic I've read many conflicting view on the use of copper grease and rubber grease on the back of pads to inhibit squealing.
Some very pro and some violently oppose to their use. I have not used any lubricants being a bit cautious about grease near brakes anyway.
What do you think?
 
Hello 6Bcygnet,

I have used Bendix pads previously, DB 554 BS. I cannot recall if they squealed as it was over 20 years ago when I used them, but they lasted only 6600 Miles (10600km). Ever since barring one occasion, (that time I used Lockheed pads, and they squealed dreadfully..lucky they only lasted 7000 Miles..11,000km) I have used pads made by the Australian Brake Lining Company. DB 554, DB 555 and DB 559 can all be used, they never squeal and they last typically 5 times as long. In terms of stopping they are excellent. I buy them direct from the factory, as you need to give them your old backing plates as they reuse them. On the rare occasion that they don't have any in stock, they make them while I wait, doesn't take long.

When I was in my steep Rover learning curve 25 years ago, I did experiment with using rubber grease on the rear of the backing plates. Didn't do anything that I could see, apart from going black and burning off. So I never bothered again, and as I say squealing seems to be in the domain of the pad material.

My rear pads at present were packaged as Unipart, and they squeal. I had them so I decided to use them, but when I next replace them I'll use the ABL pads again,..DB 539, and these have never squealed.

Ron.
 
Classeparts stock shims for the P4 and P5B. May be worth contacting them to see if they are looking to supply shims for the P6.
 
Back in my yoof, I were a 'prentice lad with a Mercedes Benz dealer and we used to rub a thin layer of Copperslip on the back of the pad and down the edges of the metal part where it runs in the caliper.

It was explained that the brake squeal was due to the engaging and disengaging of the pad many times a second and with the miniscule amount of play between the caliper and pad it gets to move, very little, but enough to cause the squeal. The Copperslip greases the pad to caliper interface.
 
Copperslip still works for me on modern cars .Never heard of using rubber grease (is that the red stuff used on rubber hydraulic seals ?)
 
Here are the shims you need:

http://cgi.ebay.co.uk/ASTON-BRISTOL-JEN ... 1c1aa849d9

Did you have any anti rattle springs, if you do not, or they have lost the temper a bit, and are not so springy, then you can order from Rockauto. Look under Jaguar XJ12, and you can pick up the anti rattle springs, for about $2.80. Here is a link:

http://www.rockauto.com/catalog/x,carco ... ttype,1736

I have seen brake pads for Jag XJ12 and Rover 3500 advertised on ebay, as being the same pad, so these should work as brake hardware.

They also list a shim, which might work, but is different from the Rover shim.

http://www.rockauto.com/catalog/x,carco ... ttype,1740

You may want to consider ceramic brake pads. The work better they reportedly work better than original brake pad material, and are not like metallic pads, which wear out the rotors. I am going to try ceramic pads at my next brake job.

James.
 
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