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Ultegra shifter problem
i have a problem with my shifter that started at the end of last fall
that i think i know what the problem is but am looking for confirmation. bike is about 7 years old with ultegra 6500 shifters. the issue is with my right shifter (i.e. back cassette) when i shift into a higher gear (i.e. smaller cog). the shift works ok but when i eventually want to shift back to a lower gear and swipe the large lever for the next lowest gear it does not "catch". i have to swipe the large levere all the way (to the left) before it will catch and i can feel resistance on the shifter. at that point i can hit the shifter to shift to the next lowest gear. i'm guessing (hoping) that it is just cable slack that i can adjust. does this sound just like the cable has to be tighten (?) by adjusting the knob near the rear derailleur? thanks! |
Ultegra shifter problem
On Apr 11, 4:10*pm, gary wrote:
i have a problem with my shifter that started at the end of last fall that i think i know what the problem is but am looking for confirmation. bike is about 7 years old with ultegra 6500 shifters. the issue is with my right shifter (i.e. back cassette) when i shift into a higher gear (i.e. smaller cog). *the shift works ok but when i eventually want to shift back to a lower gear and swipe the large lever for the next lowest gear it does not "catch". *i have to swipe the large levere all the way (to the left) before it will catch and i can feel resistance on the shifter. *at that point i can hit the shifter to shift to the next lowest gear. *i'm guessing (hoping) that it is just cable slack that i can adjust. does this sound just like the cable has to be tighten (?) by adjusting the knob near the rear derailleur? thanks! the problem you are having is gummed up paws, what you need to do is,get yourself some WD 40 and flush out the lever where the paws are and keep working the lever until it catches and lube it more with a slightly heavier lube. |
Ultegra shifter problem
On 4/11/2010 4:34 PM, Bentracer and Bentrider posted from Monkey Island:
[...] and lube it more with a slightly heavier lube. That's what she said. -- Tom Sherman - 42.435731,-83.985007 |
Ultegra shifter problem
"gary" wrote in message
... i have a problem with my shifter that started at the end of last fall that i think i know what the problem is but am looking for confirmation. bike is about 7 years old with ultegra 6500 shifters. the issue is with my right shifter (i.e. back cassette) when i shift into a higher gear (i.e. smaller cog). the shift works ok but when i eventually want to shift back to a lower gear and swipe the large lever for the next lowest gear it does not "catch". i have to swipe the large levere all the way (to the left) before it will catch and i can feel resistance on the shifter. at that point i can hit the shifter to shift to the next lowest gear. i'm guessing (hoping) that it is just cable slack that i can adjust. does this sound just like the cable has to be tighten (?) by adjusting the knob near the rear derailleur? thanks! Flush it with Powerlube, available at fine auto parts stores everywhere (well, NAPA anyway!). Amazing stuff; brings back to life far more levers than WD40 ever did. Sometimes you have to play with it for quite a while before it starts working again. And some levers just can't be brought back to life. In general, the problem seems to come up with bikes that haven't been used for a while. Very rare to see it on bikes in continuous use. But it's not a cable adjustment issue. One other thing to look at is the condition of the cable. If it's beginning to fray, you will sometimes be able to shift to a larger cog but not back down to a smaller one. But in that situation, the lever will still likely "click" when you try to shift to the smaller sprocket. --Mike-- Chain Reaction Bicycles www.ChainReactionBicycles.com |
Ultegra shifter problem
"gary" wrote in message ... i have a problem with my shifter that started at the end of last fall that i think i know what the problem is but am looking for confirmation. bike is about 7 years old with ultegra 6500 shifters. the issue is with my right shifter (i.e. back cassette) when i shift into a higher gear (i.e. smaller cog). the shift works ok but when i eventually want to shift back to a lower gear and swipe the large lever for the next lowest gear it does not "catch". i have to swipe the large levere all the way (to the left) before it will catch and i can feel resistance on the shifter. at that point i can hit the shifter to shift to the next lowest gear. i'm guessing (hoping) that it is just cable slack that i can adjust. does this sound just like the cable has to be tighten (?) by adjusting the knob near the rear derailleur? thanks! If the advice from others about cleaning and relubing or cable fray does not work check that the screw on the underside of the lever at the top where the lever leaves the housing is still there and tight. I had similar symptoms to yours when that screw on my STI came loose. Graham. |
Ultegra shifter problem
graham, can i see this screw normally or do i need to pull back the rubber shroud (not really sure what the real name is) in order to see it? hopefully i try to check it out this weekend. if that is not it i'll the flushing as was mentioned. if my initial swipe to get it into a lower gear does not "click" then by swiping the level as far as it goes and then returning and trying again usually allows the gear change. hopefully it is as simple as you mentioned. If the advice from others about cleaning and relubing or cable fray does not work check that the screw on the underside of the lever at the top where the lever leaves the housing is still there and tight. I had similar symptoms to yours when that screw on my STI came loose. Graham. |
Ultegra shifter problem
On Apr 12, 12:35*am, "Mike Jacoubowsky"
wrote: "gary" wrote in message ... i have a problem with my shifter that started at the end of last fall that i think i know what the problem is but am looking for confirmation. bike is about 7 years old with ultegra 6500 shifters. the issue is with my right shifter (i.e. back cassette) when i shift into a higher gear (i.e. smaller cog). *the shift works ok but when i eventually want to shift back to a lower gear and swipe the large lever for the next lowest gear it does not "catch". *i have to swipe the large levere all the way (to the left) before it will catch and i can feel resistance on the shifter. *at that point i can hit the shifter to shift to the next lowest gear. *i'm guessing (hoping) that it is just cable slack that i can adjust. does this sound just like the cable has to be tighten (?) by adjusting the knob near the rear derailleur? thanks! Flush it with Powerlube, available at fine auto parts stores everywhere (well, NAPA anyway!). Amazing stuff; brings back to life far more levers than WD40 ever did. Sometimes you have to play with it for quite a while before it starts working again. And some levers just can't be brought back to life. In general, the problem seems to come up with bikes that haven't been used for a while. Very rare to see it on bikes in continuous use. But it's not a cable adjustment issue. One other thing to look at is the condition of the cable. If it's beginning to fray, you will sometimes be able to shift to a larger cog but not back down to a smaller one. But in that situation, the lever will still likely "click" when you try to shift to the smaller sprocket. --Mike-- * * Chain Reaction Bicycleswww.ChainReactionBicycles.com mike, thanks for the reply. the bike is in continuous use at least from late april to early october. i'm hoping that it is a "screw issue" that graham mentioned. if not i'll try your Powerlube suggestion. i'm hoping the the lever can "be brought back to life". shifters aren't exactly cheap!! :) :) as far the cable condition it only happens shifting using the big lever (going into a lower gear, bigger cog). i have no problem shifting to a higher gear via the smaller lever. |
Ultegra shifter problem
"gary" wrote in message ... graham, can i see this screw normally or do i need to pull back the rubber shroud (not really sure what the real name is) in order to see it? hopefully i try to check it out this weekend. if that is not it i'll the flushing as was mentioned. if my initial swipe to get it into a lower gear does not "click" then by swiping the level as far as it goes and then returning and trying again usually allows the gear change. hopefully it is as simple as you mentioned. If the advice from others about cleaning and relubing or cable fray does not work check that the screw on the underside of the lever at the top where the lever leaves the housing is still there and tight. I had similar symptoms to yours when that screw on my STI came loose. Graham. Graham, Thank you very much for the advice! My early Ultegra STI right shifter behaves similarly to what gary described. I've sprayed it heavily with Power Lube, replaced the cable, and replaced housing, none of which fixed it. Looking at my lever shows that screw to be _gone_. Off to find a replacement screw, with high hopes. gary, Will try to describe where the screw is that Graham spoke about. You can see the screw (or where it should be) without pulling back the rubber hood. With the bike resting on it's tires, look up under the lever from the rear, in the area where the small lever pivots. The order of pieces, from the front of the bike, is: large lever, small lever, small plate (kind of "P" shaped). There should be a screw that goes through a hole in the small plate into a threaded hole in the large lever. My early Ultegra lever (the left side one, that still has a screw) has what looks like an ordinary round-headed screw. Also have a much later set of Ultegra levers, they have screws with hexagonal outlines, and there's a thin metal locking device with tabs bent inward against the sides of the hexagon, looking to prevent the screws from loosening. Good luck, Kerry |
Ultegra shifter problem
On Apr 15, 9:59*pm, "Kerry Montgomery" wrote:
"gary" wrote in message ... graham, can i see this screw normally or do i need to pull back the rubber shroud (not really sure what the real name is) in order to see it? hopefully i try to check it out this weekend. *if that is not it i'll the flushing as was mentioned. if my initial swipe to get it into a lower gear does not "click" then by swiping the level as far as it goes and then returning and trying again usually allows the gear change. *hopefully it is as simple as you mentioned. If the advice from others about cleaning and relubing or cable fray does not work check that the screw on the underside of the lever at the top where the lever leaves the housing is still there and tight. I had similar symptoms to yours when that screw on my STI came loose. Graham. Graham, Thank you very much for the advice! My early Ultegra STI right shifter behaves similarly to what gary described. I've sprayed it heavily with Power Lube, replaced the cable, and replaced housing, none of which fixed it. Looking at my lever shows that screw to be _gone_. Off to find a replacement screw, with high hopes. gary, Will try to describe where the screw is that Graham spoke about. You can see the screw (or where it should be) without pulling back the rubber hood. With the bike resting on it's tires, look up under the lever from the rear, in the area where the small lever pivots. The order of pieces, from the front of the bike, is: large lever, small lever, small plate (kind of "P" shaped). There should be a screw that goes through a hole in the small plate into a threaded hole in the large lever. My early Ultegra lever (the left side one, that still has a screw) has what looks like an ordinary round-headed screw. Also have a much later set of Ultegra levers, they have screws with hexagonal outlines, and there's a thin metal locking device with tabs bent inward against the sides of the hexagon, looking to prevent the screws from loosening. Good luck, Kerry All, If you need to disassemble your STI lever, there is a website where a guy disassembled and reassembled both a DA AND Ultegra STI lever. Looks alot more complex than Campy, but do-able. Probably the hardest part is finding small parts as Shimano doesn't sell them. Good Luck link: http://www.norvil.net/pedal/service/...ti/removal.php DA link: http://www.norvil.net/pedal/service/...9sti/strip.php Ultegra link: http://www.norvil.net/pedal/service/...9sti/strip.php |
Ultegra shifter problem
bfd wrote:
On Apr 15, 9:59 pm, "Kerry Montgomery" wrote: "gary" wrote in message ... graham, can i see this screw normally or do i need to pull back the rubber shroud (not really sure what the real name is) in order to see it? hopefully i try to check it out this weekend. if that is not it i'll the flushing as was mentioned. if my initial swipe to get it into a lower gear does not "click" then by swiping the level as far as it goes and then returning and trying again usually allows the gear change. hopefully it is as simple as you mentioned. If the advice from others about cleaning and relubing or cable fray does not work check that the screw on the underside of the lever at the top where the lever leaves the housing is still there and tight. I had similar symptoms to yours when that screw on my STI came loose. Graham. Graham, Thank you very much for the advice! My early Ultegra STI right shifter behaves similarly to what gary described. I've sprayed it heavily with Power Lube, replaced the cable, and replaced housing, none of which fixed it. Looking at my lever shows that screw to be _gone_. Off to find a replacement screw, with high hopes. gary, Will try to describe where the screw is that Graham spoke about. You can see the screw (or where it should be) without pulling back the rubber hood. With the bike resting on it's tires, look up under the lever from the rear, in the area where the small lever pivots. The order of pieces, from the front of the bike, is: large lever, small lever, small plate (kind of "P" shaped). There should be a screw that goes through a hole in the small plate into a threaded hole in the large lever. My early Ultegra lever (the left side one, that still has a screw) has what looks like an ordinary round-headed screw. Also have a much later set of Ultegra levers, they have screws with hexagonal outlines, and there's a thin metal locking device with tabs bent inward against the sides of the hexagon, looking to prevent the screws from loosening. Good luck, Kerry All, If you need to disassemble your STI lever, there is a website where a guy disassembled and reassembled both a DA AND Ultegra STI lever. Looks alot more complex than Campy, but do-able. Probably the hardest part is finding small parts as Shimano doesn't sell them. Good Luck link: http://www.norvil.net/pedal/service/...ti/removal.php DA link: http://www.norvil.net/pedal/service/...9sti/strip.php Ultegra link: http://www.norvil.net/pedal/service/...9sti/strip.php bfd, Thanks for the links. This particular repair doesn't require any disassembly, thankfully. Did get a replacement screw, but it didn't come from Shimano. Took the matching one to River City Bicycles here in Portland - after several minutes of not finding the correct part, the mechanic found a correct thread, correct head, incorrect length screw, ground it to the right length, gave it to me, and wouldn't take any money for his trouble! Continuing to be a fan of LBSs, Kerry |
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