[kwikt]

I have a problem with the left front caliper dragging or sticking. I already replaced the rubber hoses and replaced the pistons and seals within the last year. Everything looks fine. Also bled the system multiple times but it still drags. It appears that the ouside pad wears more than the inside one. What gives??? Btw it's a non M030.

Partial Post: Please Login or Register to read the full post.

[Oily]

Hi

It could be plate lift. The aluminium caliper corrodes against the steel pad plate. This causes the plates to lift. This causes a squeezing of the pads, preventing them to move freely. The inner side of the caliper seems more prone to pad lift. This results in the outer pad doing all the work and wearing at a much faster rate than the inner one.

This is what plate lift looks like.

The plate looks as if it has lifted in the corner away from the caliper.



This is what happens to the inside of the disc if you ignore it.



This is what flat plates look like.



If you can get the screws out that hold the plates in, then it is relatively easy to clean it all up and put back together. If you can't get them out cleanly, it can be painful.

Hope this helps. Good luck.

Regards

Oily

Partial Post: Please Login or Register to read the full post.

[rxter]

Oily

On behalf of myself (since I really have no standing here I just post too much) I hearby bestow upon you the honorary title of

"Caliper Man"

Great insights.

And good luck with the problem kwikt - you know who to buzz when you get those puppies off...

Partial Post: Please Login or Register to read the full post.

[kwikt]

No, I don't believe it is plate lift. Like I said I rebuilt the calipers last year and everything moves free. But I do have a new master cylinder on the work bench waiting to be installed. MMMMM probably next weekend.

Partial Post: Please Login or Register to read the full post.

[Ryan]

I don't think a new master is going to fix it. Maybe your screws that hold the plate came loose and the plate is rubbing the pads. I would check that caliper. It is not that time consuming to pull and check.

Partial Post: Please Login or Register to read the full post.

[kwikt]

Alright, I'll check it out one more time! Thanks.

Partial Post: Please Login or Register to read the full post.