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Is my front brake lever shifter broken?

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Is my front brake lever shifter broken?

Old 01-09-21, 02:44 PM
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geepondy
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Is my front brake lever shifter broken?

I have a 25 year old Univega road bike with 105 componentry. Bike hasn't been ridden in 10 plus years but was working fine last time it was. I am now investigating using it on a trainer but when I checked it out, the front brake lever shifting apparatus is not working correctly. When I engage either the brake lever or the inner downshift lever, there is no resistance or derailleur movement. The cable is taunt however so I don't think it's become unattached. Does this sound like a common easily repairable failure? I didn't accidently put it some shift lockout mode, did I?
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Old 01-09-21, 03:24 PM
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The most common reason for this is that the tiny ratchet pawls are no longer freely pivoting on their little shafts. The grease that was used to lube during the factory assembly has finally become gummy. The usual fix is to soak/flush out the old sticky lube and refresh with new and slippery lube. There are dozens of on line vids as well as threads here on BF that show this process. Andy
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Old 01-09-21, 03:44 PM
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Please excuse my ignorance as I am not bike mechanic savvy but are these pawls located on the derailleur itself or part of the brake lever shifting system? I would be most appreciative if somebody could link me to an article or youtube video that explains this in more detail.
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Old 01-09-21, 04:12 PM
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Bill Kapaun
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Blast the shifter innards with a solvent. One of my few uses for WD-40.
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Old 01-09-21, 04:13 PM
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Just search youtube for flushing brake/shifters levers. Same for google
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Old 01-09-21, 04:13 PM
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Originally Posted by geepondy View Post
Please excuse my ignorance as I am not bike mechanic savvy but are these pawls located on the derailleur itself or part of the brake lever shifting system?
The pawls are in the Shifter/brake lever housing.
A derailer, with very few exceptions, can be moved smoothly through its range of motion once unhooked from the cable. No controls there.
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Old 01-09-21, 06:40 PM
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geepondy
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I think I'm in trouble now. I removed the cap of the hood near where the cable exits the assembly, which was held on by a Hex screw. The cap came off along with a spring and I can't put it back together!
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