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Shifting Problem

Old 08-27-05, 09:05 AM
  #1  
scottdp17
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Shifting Problem

Hello all, this is my first post here but I've been lurking for a while and have really enjoyed reading these boards while getting back into biking.

My question is that a friend gave me his older (and rather dirty) Diamondback Sorrento SE with Shimano trigger shifters to play around with and when I got it (and I know I'm going to use all the wrong terminology but I'm learning using the Bicycle Maintenance & Repair guid by Downs) the shifter that controls the front derailleur would not work. It was in the second gear and when you went down to 1 the dial would move and try to push the derailleur but the gear wouldn't change. When you went up to 3 it would try to push the derailleur but not move it and this time the dial wouldn't even move. I got number 1 working by changing the adjusting screws on the front derailleur which made it work, but sluggishly and then I kept unscrewing the adjusting barrel until it works well (but now I have it unscrewed a half an inch, how much will it go?). I just can't get the number 3 to work though, and I think maybe the problem is with the shifter since with 1 it would actually move the dial but with 3 it does not move. Do any of you know how to fix the problem or do I need to get a new shifter? Or is it not the shifter and the front derailleur that is the problem? Thanks for your help, Scott
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Old 08-27-05, 09:28 AM
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sydney
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Assuming nothing is broken, ginked or otherwise buggered or wore out, and you don't have cable/casing issues, www.parktool.com repair section has the drill on deralir adjustment Start at the beginning!
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Old 08-27-05, 09:52 AM
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Originally Posted by scottdp17
My question is that a friend gave me his older (and rather dirty) ...
Start by replacing your cables and housings, then do what sydney said.
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Old 08-27-05, 08:16 PM
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Also try cleaning dirt out from the inside of the shifter with WD40. When you install the new cable in the shifter, before you attach the other end to the derailler, try working the shifter up and down with one hand, while pulling on the cable with the other hand. There should be a small movement of the cable for each shift. If there is no movement for some shifts you will need a new shifter.
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