| Author | Message | ||
     Oldog |
On the way in this am I had a recurrance of an event I thought was just random first 2 times, the motor is running fine, holding a steady 60 mph, then the engine seems to start labouring, oil press and temp is good, pull in the clutch and it slows right down, Pull over and "stand on" rear brake, "clamp down" on front brake rock bike back & forth shift to neutral and sit for just a minute, what ever is in the bind seems to loosen up and problem goes away. This seems to happen at long intervals, other data. Last winter about 8 months ago I re did the front caliper, cleaned MC, replaced fluid, Rear fluid changed and binding problem corrected Crank vents are aft over caliper some oil film is present in the area, evidence of some droplets yesterday thoughts any one | ||
| Whodom |
Oldog, I had similar occurrence on my S3 about a month ago. In my case, it seemed to be a random binding of the front caliper. Last summer, shortly after I replaced the front brake shoes, I had a problem with the front caliper sticking on my bike. I searched BadWeb and read about the importance of cleaning the pistons when installing new shoes, took the caliper off and thoroughly cleaned the pistons. It worked fine for ~9 months and then out of the blue seemed to bind one morning while I running ~60 MPH on a backroad riding to work. I had to slow for a turn ~1 minute after I first felt the binding, and I pumped the front brake lever a few times as I was slowing for the turn. As I accelerated from the turn, the caliper seemed to have fully released and I haven't had a problem since. Easiest way to identify the problem if it is a sticking caliper is to (carefully) feel the rotor after you stop. I can't quite fathom what could cause a random brake problem like this though. Trash blocking the relief port in the M/C temporarily perhaps? (Message edited by whodom on May 18, 2006) | ||
| Chasespeed |
Brake fluid is hydroscopic(i think that is the right word), in other words, it absorbs moisture like a sponge.... it is recommended flush yoru brake system at least once a year., though it is a pain.. Anyway, as it absorbs moisture, and get hot...the moisture it self expands, thus puting a little drag on the rotor... if lt gets bad, it *COULD* lock the brakes up.... Next tiem you tear into the caliper, CLEAN those pistons...use brake cleaner, and a lint free rag, NOTHING ABRASIVE, as it can score the pistons... use new o-rings... Hope that helps a little ... chase | ||
| Djkaplan |
Same thing happened to me, once. After cleaning the caliper pistons very carefully, the problem never came back. | ||
| Oldog |
Who: Tried touching the rotor after a suspected dragging incedent, OH YEAH BABY THAT THING IS ALL KINDS A HOT! the operative word is Carefuly? I was not where I could feel the front rotor, back was "shiny" this am Chase: I over hauled the caliper, new pistons rubber, new fluid from a sealed can, disassembled and cleaned the MC re assm and bled the thing 3 times the rear I just flushed the old fluid out and replaced it with new, and fixed a binding problem. |
