Brake backing plates

[h_____]

More questions I'm afraid.

Does everyone fit the ali brake backing plates behind the pads but between the spring clips? Reason for asking is that although I had stuck the spring clips to the plate, on the rear it slipped down and fouled the hub of the disk. Whislt this didnt cause too much issue, its annoying. Also my brakes are very noisy, does everyone always replace the spring clip things everytime you replace the pads?

 

[RSR]

Hugh. Noticed you hadn't had a response on this one. I'm assuming you mean the round pad backing plates that stick to the new pad back and pushes into the hollow in the caliper pistons. If so yes. They're megga cheap and help stop any squeel. I can't guarantee no squeel as it depends what pad material you use. Standard pads with these plates should give no squeel. Don't mean to tell you how to best fit them, but just insert all the round backing plates into the piston hollow first, then remove the paper part to expose the sticky surface, insert the pads and then apply the brake pedal. This then sticks the pads firmly to the round backing plates.

Incidentally the pads shouldn't fall in towards the hub /disk without these sticky back plates. The steel plates that are bolted to the caliper should have a lip on the inside of them to stop the pads going in to the caliper too far. I'm not sure how you have experienced the problem described.

 

[Damen]

aka anti-squeal pads.

Not sure how they slipped down between the hub and disc. As Paul suggests, they are easy to fit.

Also, as for noisy brakes, do you mean they squeal or make a droning noise?

Damen

 

[h_____]

Paul, Damen,

Thanks for the responses I think I've not been very clear, but you've answered the question. My car has a small ali plate fitted between the anti squeal round pads and the pad itself. As seen on the pic below. It is this plate that has come loose and slipped down on the rear hub. From Paul's description above they are not required as the pad will go directly against the round anti squeal pads. So I'll go around and remove them. Equally, whilst at it, I'l replace all the anti squeal pads, as they arent all new.

Damen the brakes make a squealing sound esp off the back, but it is a bit intermittent, as though there is a bit of run out on the disk, or as though the pad isnt seated properly. However, let me take these plates out, replace the round antisqueal shims and then see.

 

[Steve Brookes]

Hugh, in case it's also relevant to RS brake pads, my standard pads have those thin plates attached directly to the back of the pads (they're glued on at the factory). Under track temperatures they also came off. My Pagid greys don't have any such plates fitted i.e. the plates are part of some pads and not an extra shim to be used with all pads. HTH.

 

[RSR]

Hi Hugh, the pic clears it all up. As Steve suggests that thin plate is supposed to be a permanent fitting to the standard pads and can come lose after time. When this happens it renders the anti squeel shims totally useless as the pad is effectively now free to vibrate. The only thing in there should be the anti squeel shims and a set of pads and the anti squeel shims should be stuck directly to the back of the pad. This stops squeel.