Bicycle Mechanics - Freehub sticking?

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seely
05-25-04, 10:08 PM
After a nearly complete teardown/cleaning/rebuild of my '04 Stumpjumper HT...

Anyways, upon reinstalling the freshly lubed cassette, and the de-gunked wheel, putting my clean PC99 back onto my clean XT chainrings, now when you crank and then coast, the cranks keep spinning with the rear wheel. I can hold them in place and get it to freewheel fine, with some slight pressure against my arm as I am holding the cranks. If I let go, it slowly resumes its fixed gear behaivor. I check the hub, its fine, checked the chain, very clean and free movement, derailleur seems to be perfect... everything should be 100% perfect and it was not doing this before the rebuild... nothing has changed since except everything is cleaner and I swapped newer derailleur pullies from my broken XTR derailleur onto the XTR thats on it now (same model, non RR).... any ideas?

Hunter
05-25-04, 11:58 PM
http://www.parktool.com/repair_help/howfix_freehub.shtml
seely
05-26-04, 12:11 AM
Yeah I pulled it off and noticed nothing unusual... I didn't grease it upon reinstall but it seemed clean and still pretty well greased.

Hunter
05-26-04, 12:49 AM
If those rubber dust seals are cracked they can cause it to stick. However if you are confident everything looks good and is well cleaned etc then replace the freehub body.
seely
05-26-04, 03:07 PM
Yeah the dust seals are flawless... I was thinking of replacing it, but what baffles me is its about 3mo old, and worked flaweless right up until I put it back on the bike last night. I spun it once before I put the cassette on and after I put the cassette on it seemed fine. Put the wheel in the dropouts reinstalled the chain and gave it a spin, and now its tight. Go figure.
Rev.Chuck
05-26-04, 09:30 PM
It may well be the metal seal in the freehub. If you removed it and bent it even a tiny amount, when you reinstalled the cassette it might have pushed it in far enough to touch the center of the hub causing it to bind. If it is not installed far enough or the axle is installed backwards ther rubber seals can cause some binding. Also if the cones are on the tight side there can be some binding when the Q/R is tightened up(This id usually on older bikes)