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deep scoring on brake pads

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Timmeh
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Joined: 01 Nov 2006
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PostPosted: 17:33 - 21 Aug 2013    Post subject: deep scoring on brake pads Reply with quote
'lo BCF

repo popo disclaimer; did search but not found anything current.

So I pulled out the pads on my project gixxer, they are totally ruined with the friction material contaminated. God knows when they were actually last used.

I was just wondering what the deep scoring marks in the pic might be? Have seen something similar before, but nothing that deep or symmetrical, so if anyone could offer an explanation that would be awesome.

ta Thumbs Up

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The Shaggy D.A.
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PostPosted: 17:37 - 21 Aug 2013    Post subject: Reply with quote
Almost looks like screwdriver/lever marks, trying to get the pistons pushed back in when the caliper is off.
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Fisty
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PostPosted: 17:42 - 21 Aug 2013    Post subject: Reply with quote
The Shaggy D.A. wrote:
Almost looks like screwdriver/lever marks, trying to get the pistons pushed back in when the caliper is off.


Yep thats it. No other rational explanation for it.
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Timmeh
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PostPosted: 18:01 - 21 Aug 2013    Post subject: Reply with quote
Fisty wrote:
The Shaggy D.A. wrote:
Almost looks like screwdriver/lever marks, trying to get the pistons pushed back in when the caliper is off.


Yep thats it. No other rational explanation for it.


Jeez, so I guess sliding the pads out and using a nice soft bit of wood was too much hard work eh?

Wouldn't surprise me, this poor thing has suffered quite a lot of bodgery. Both r-clips were missing from the pad pins on the front, and on the rear there is supposed to be two metal plates that go between pistons and pads to stop them twisting, they were missing too. Guess safety wasn't an issue for this dude.

Cheers dears Thumbs Up
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Irn-Bru
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Joined: 13 Aug 2009
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PostPosted: 18:16 - 21 Aug 2013    Post subject: Reply with quote
Reminds me of my last bike:

https://i.imgur.com/6W2SUnq.jpg

derp.
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stavros
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Joined: 20 Dec 2011
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PostPosted: 18:20 - 21 Aug 2013    Post subject: Reply with quote
Ditto for the screwdriver causing the marks.
Have a good look at the state of the pistons as well!
If the pads have been bodged that much to push the pistons
back..................and bits missing Rolling Eyes Rolling Eyes Rolling Eyes
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garth
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Joined: 15 Dec 2004
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PostPosted: 14:17 - 22 Aug 2013    Post subject: Reply with quote
Anyone ever had the friction material come clean away? My SBS pads lasted less than a thousand miles, and when I took them off (in a car park, in the middle of France, I didn't expect them to wear so fast) the friction material had just fallen off the backing plate.

I'll get pics, might complain.
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Howling TerrorOutOfOffice
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PostPosted: 15:41 - 22 Aug 2013    Post subject: Reply with quote
^^^ Surprised Damn right I'd complain.
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garth
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PostPosted: 15:56 - 22 Aug 2013    Post subject: Reply with quote
Only thing is they were trackday compound pads, but I'm not hard on the brakes on the road in the slightest.

I'll post a pic tomorrow.
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Walloper
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PostPosted: 17:18 - 22 Aug 2013    Post subject: Reply with quote
garth wrote:
Anyone ever had the friction material come clean away? My SBS pads lasted less than a thousand miles, and when I took them off (in a car park, in the middle of France, I didn't expect them to wear so fast) the friction material had just fallen off the backing plate.

I'll get pics, might complain.


It's a bugger when your break pads brake. Smile
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Old Thread Alert!

The last post was made 12 years, 133 days ago. Instead of replying here, would creating a new thread be more useful?
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