|
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
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! |
#2
|
|||
|
|||
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. |
#3
|
|||
|
|||
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 |
#4
|
|||
|
|||
Ultegra shifter problem
Bentracer and Bentrider wrote:
gary wrote: 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". * Yeah, they do that. 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. That's "pawls". And STI shifters respond much better to a hotter solvent than WD40. At my shop, the thing we have around that works best is White Lightning Clean Streak dry degreaser. After freeing up the mechanism, I flood with Boeshield T-9 or some other light spray lube. It's funny what some folks will tolerate. Downtube, barend, thumb, and stem shifters cost less, weigh less, and don't fail this way. Chalo |
#5
|
|||
|
|||
Ultegra shifter problem
On Apr 17, 9:30*pm, Chalo wrote:
Bentracer and Bentrider wrote: gary wrote: 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". * Yeah, they do that. 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. That's "pawls". And STI shifters respond much better to a hotter solvent than WD40. At my shop, the thing we have around that works best is White Lightning Clean Streak dry degreaser. *After freeing up the mechanism, I flood with Boeshield T-9 or some other light spray lube. It's funny what some folks will tolerate. *Downtube, barend, thumb, and stem shifters cost less, weigh less, and don't fail this way. I liked stem shifters and safety brakes. I don't know why they got rid of those. My 1968 Schwinn Varsity was all I ever needed, and I liked that sparkly bar tape that matched the color of the bike.-- Jay Beattie. |
#6
|
|||
|
|||
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 |
#7
|
|||
|
|||
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. |
#8
|
|||
|
|||
Ultegra shifter problem
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 Bicycles www.ChainReactionBicycles.com Just bought some Powerlube from NAPA on your recommendation. I don't know if this is nationwide, but it was about 50% off so I bought two. |
#9
|
|||
|
|||
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. |
#10
|
|||
|
|||
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. |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Problem with Ultegra chain ring shifter | ed | Techniques | 0 | March 22nd 08 05:03 PM |
STI shifter problem | Doug B. | Techniques | 17 | December 5th 06 01:48 PM |
Bar end shifter problem | Ted Bennett | Techniques | 4 | September 6th 05 03:48 AM |
WTB: RH Ultegra Shifter | Andy Birko | Marketplace | 0 | March 29th 05 10:26 PM |
WTB: Ultegra STI Shifter | Mark Shefrin | Marketplace | 1 | September 30th 03 02:43 PM |