Juicy troubleshooting
06-30-06, 08:18 AM
#1
one less horse
Thread Starter
Juicy troubleshooting
I'm trying to do a remote (600 miles away) diagnosis for a non-intarweb compatriot of mine. Brakes are 2004 Juicy 7's and the symptoms relayed to me are as follows:
1) Bike has not been ridden for some time (months, probably)
2) Homie went for a ride, brakes worked fine.
3) Bike sat overnight
4) Next day, front brake still works fine, but rear feels "pumped up" - pads are squeezing rotor firmly, but not totally locked. Neither caliper realignment nor lever adjustment appears to have any effect on lever feel. I get the feeling that the pads/pistons just won't retract for some reason.
Any insight, especially from those of you with first hand experience with these brakes, is greatly appreciated.
1) Bike has not been ridden for some time (months, probably)
2) Homie went for a ride, brakes worked fine.
3) Bike sat overnight
4) Next day, front brake still works fine, but rear feels "pumped up" - pads are squeezing rotor firmly, but not totally locked. Neither caliper realignment nor lever adjustment appears to have any effect on lever feel. I get the feeling that the pads/pistons just won't retract for some reason.
Any insight, especially from those of you with first hand experience with these brakes, is greatly appreciated.
Last edited by cryptid01; 06-30-06 at 08:33 AM.
06-30-06, 08:40 AM
#3
Lost in the Black Hills
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if he already repositioned the caliper, have him take it off all the way and make sure things aren't binding and the pistons can be pushed in with fingers.
check to make sure there is no binding:
1) return springs
2) pad retaining pins
3) pads
4) did piston pop out of bore??
but you know all this already. are you testing the forum's knowledge?
anyway, have him take caliper off and take pads out and inspect it
check to make sure there is no binding:
1) return springs
2) pad retaining pins
3) pads
4) did piston pop out of bore??
but you know all this already. are you testing the forum's knowledge?
anyway, have him take caliper off and take pads out and inspect it
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Last edited by mx_599; 06-30-06 at 09:02 AM.
06-30-06, 08:54 AM
#4
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you said he messed with the lever, but have him check to make sure the "plunger/ MC piston" is moving freely and not bound.
tell him to get a bleed kit, do two bleeds, and call you in the morning
tell him to get a bleed kit, do two bleeds, and call you in the morning
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Tomac Mountain Bikes | Light-Bikes l Magura USA | Industry Nine | Schwalbe Tires | Caffélatex
06-30-06, 09:28 AM
#5
one less horse
Thread Starter
Originally Posted by mx_599
are you testing the forum's knowledge?
06-30-06, 05:17 PM
#6
Old School Rad
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Can you not fix your brakes? Good story.
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Like a circus monkey on a stolen Harley......
Like a circus monkey on a stolen Harley......
06-30-06, 05:40 PM
#7
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07-02-06, 05:29 PM
#9
mmm... chicken!
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friend of mine had a similar problem with 05 juicys - rear brake just kept rubbing, couldn't freewheel properly and dragged him on the climbs. turns out the brake fluid just expanded (dont ask me how, and dont throw phsics at me), simple solution the lbs did was to bleed out some of the fluid.
07-02-06, 06:28 PM
#10
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Yeah brake fluids just expand with heat... some more than others (mineral oil moreso than DOT) that is why brakes have overflow reservoirs (oversized like Shimano's in some cases).
Try a simple bleed and work from there... most likely the bleed will fix your problems, if not well, thats something less to worry about and start isolating the problem.
Try a simple bleed and work from there... most likely the bleed will fix your problems, if not well, thats something less to worry about and start isolating the problem.
07-03-06, 04:05 AM
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I don't mean to jack the thread but I'd like to ask a quick question about my '05 Juicy 5s: I've ridden them a good 2-3 hours on flat bike lanes in the city, stopping at red lights, etc and although they've got some decent power in them they still don't bite, I can hardly endo with 2 fingers. Is this normal? Do they still need more wearing in?
Thanks
Thanks
