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Help needed: Chain doubles up on itself when riding without pedalling
Hi everyone,
I can't sem to find the answer to a peculiar problem, that my local bicycle repairman has been unable to fix. Case in question is a MTB with ca. 2000 Deore XT. I had it in storage for approximately three years while abroad (where my more recent bike was stolen). Now when I ride it with my feet on the pedals, but without actually pedalling, the rear wheel will rotate the chain forward which doubles up on itself. This is very annoying, also because when I start pedalling again, there is no immediate response, because the slack chain has got to be reeled in first. If I roll forward and raise my feet off the pedals, they will spin too (which they aren't supposed to do). Oddly enough they don't spin if I just push the bike (no weight on it). The bike repairshop man says that due to the long storage duration, the lubricant in the rear wheel bearings has become "resin-like" and sticky, and he cannot fix it. Do I need a whole new wheel? Suggestions please. Daniel |
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Help needed: Chain doubles up on itself when riding without pedalling
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#4
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Help needed: Chain doubles up on itself when riding without pedalling
It's generally a bad idea to put grease in a freehub. The grease can
thicken by itself with age, or can trap dirt which has the same effect, and prevent the pawls from engaging. THAT can be a dangerous situation, especially if you're putting a lot of pressure on the pedals and they suddenly slip forward- what will become of your wee- wee? The freehub should only be lubed with oil. |
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Help needed: Chain doubles up on itself when riding without pedalling
On Mon, 29 Aug 2005 19:17:36 -0500, fd fdd wrote:
It's generally a bad idea to put grease in a freehub. The grease can thicken by itself with age, or can trap dirt which has the same effect, and prevent the pawls from engaging. THAT can be a dangerous situation, especially if you're putting a lot of pressure on the pedals and they suddenly slip forward- what will become of your wee- wee? The freehub should only be lubed with oil. The person you're replying to did not suggest otherwise. Jasper |
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Help needed: Chain doubles up on itself when riding without pedalling
On Tue, 30 Aug 2005 01:18:12 GMT, Jasper Janssen
wrote: The freehub should only be lubed with oil. The person you're replying to did not suggest otherwise. Au contraire, mon ami! I quote thusly: "I recently had to do this- I rebuilt a wheel that had hung in my garage for a couple years. Apparently the inside of the cassette body had gotten a bit rusty, and the pawls weren't engaging properly. I removed the cassette body, cleaned it, spun it while pouring oil into it (the oil came out the other side brown as the rust was broken up), and packed it with light grease. It works great, and makes very little noise." Packing a freehub with light grease is the bad idea to which I referred. |
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Help needed: Chain doubles up on itself when riding without pedalling
On Mon, 29 Aug 2005 22:06:19 -0500, fd fdd wrote:
On Tue, 30 Aug 2005 01:18:12 GMT, Jasper Janssen wrote: The person you're replying to did not suggest otherwise. Au contraire, mon ami! [...] Packing a freehub with light grease is the bad idea to which I referred. You're right. My apologies, I somehow missed that in several careful rereadings. Jasper |
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Help needed: Chain doubles up on itself when riding without pedalling
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Help needed: Chain doubles up on itself when riding without pedalling
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Help needed: Chain doubles up on itself when riding without pedalling
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