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Blue
Melb,
Australia
Posts: 403
Speed Triple 955i (99-01)
11 May 2008 18:06 |
I took out the pads to clean the pistons and noticed that the right side caliper pads were not equally worn. There was a significant difference. One side was atleast 40% thicker.
So I cleaned and removed quite a bit of black grit from around the pistons and put everything back together.
Lever is now firm. Me thinks could be pistons on one side sticking and not moving out of their bores. What do you think? Is it safe to leave the pads as they are or should they be replaced?
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bradtx
Pearland, TX,
USA
Posts: 712
Premier Member
Daytona 955i (04->)
11 May 2008 18:17 |
Blue, We've included brake piston cleaning into the oil change interval. On the '02 D955i it was found that some pistons wouldn't extend at all, causing unequal pressure on the pads. Doesn't seem to be a pattern of troublesome pistons. Usually keeps the brake lever firm for quite some time.
Brad
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Suppards
Cheapside,
United Kingdom
Posts: 1,033
Premier Member
Bonneville T100 (01->)
11 May 2008 18:29 |
If in doubt change the pads.
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Ed Lewis
South Central PA,
USA
Posts: 39
Premier Member
Daytona 955i (02)
12 May 2008 18:50 |
[edited]:
I think you are going to get uneven wear to some degree from the caliper design.
I would certainly add proper piston cleaning every 5k or so, especially if you ride in the rain and dusty conditions.
You will find that if you hold the ones that are moving properly, you can get the other ones to eventually come out. Once you get them most of the way out, give them a gentle scrubbing and make sure there is no line of grit or rust to hang them up from moving smoothly.
I would then change the pads.
And do not forget to flush your brake fluid through. I bought a bike that was always serviced at the dealer and it had coca-cola as brake fluid. I flush the system yearly.
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