brake squeal

[skiri251]

'82 GL1100A

Mine developed annoying brake squeal. Right before stopping. After I bought the bike, I rebuilt the calipers with new o-rings. The pads are old but still a lot of material left. I would say it didn't squeal for the first thousand miles. PO put squeal stop paste thing (pink one) between the back of the pads and pistons. I re-did it but after a few weeks it's back.

I understand this is a relatively common problem. I wonder there are GL specific remedy. FYI, this is a dual piston caliper + ventilated rotor brake.

 

[dan filipi]

The pads will probably glaze themselves again with 1k miles even after scuffing them.
As soon as those pads get hot they'll glaze, hard to prevent with a heavy bike.
About the only way to prevent I know of is use the brakes as little as possible.

 

[skiri251]

Thanks.
I will try scuffing. With the sidecar, I am afraid I need to use the brake a lot. So either put up with the squeal or periodic scuffing, I guess.

 

[cmonSTART]

I've had luck with organic pads such as EBC makes. I run them on the rears of both bikes and am now squeal free. Also, make sure the shims are still in place and in good shape.

 

[skiri251]

Thanks.
Heard of EBC but never tried.

 

[skiri251]

BTW, which one is the shim?

 

[skiri251]

I am not sure I understand your explanation.

I now realize that the pads have diffrent numbers (6 and 8). I (actually the PO) might have installed them in a wrong way..
Hmmmmmm...
How do I know which is #8 and which is #6?
The back should say something?
PO (followed by me) put that "brake quiet" pink paste all over so it's kind of difficult see.

EDIT:

Oh actually pads are both #6. #8 is a "spring". I am getting old...
I think I installed it properly but will double check. Thanks.