Dec 25, 2002 9:30 AM
|I just bought a used bike with DuraAce. I have a few what may be problems-I am not sure-Ive been using Campy for then past 5 years so this is a bit different.
Cranks-to pull them off I simply turn the allen screw to the left?
Shifters-my left shifter seems to be messed up. It shifts fine from little to big, but if I were to press it over again it will rachet over(makes a clicking noise) but there will not be any more cable movement. Is this normal?
If not how easy is it to rebuild DuraAce levers.
|re: DuraAce questions||Rusty Coggs|
Dec 25, 2002 11:06 AM
|If the cranks are self extracting, then they remove by turning the hex bolt counter colckwise. There can be no more cable movement once the derailer hits the ligh limit screw setting if that is what you mean.Shimano shifters are generally not considered rebuildable in the sens that campys are.|
|re: DuraAce questions||fredthebiker|
Dec 25, 2002 4:19 PM
|The way to remove the cranks are to turn the bolt COUNTER CLOCKWISE. Not clockwise. REmember, righty tighty, lefty loosey.
The bolt should be self extracting if it is a 9spd group. If it is a 8 spd group, unless it is modified with a self extracting crank bolt kit,you need a crank extractor tool.
The bolt size for both of these is an 8mm allen key.
As for the shifter, yes, it is rebuildable. Now, what i mean by that is you can buy the "blade". What the blade is is all of the working internals and you replace that and the shifter is brand new.
Your problem may be as simple as a cable that is too tight. At times, if the cable is too tight, it will cause the shifter to lock up. If you loosen up the cable tension just a bit, it should would better.
|re: DuraAce questions||pmf1|
Dec 26, 2002 5:50 AM
|1. As others have said, the cranks come off with a hex wrench. There is something that looks like a lock ring, but it is purely aesthetic and serves no purpose (except to look like a lock ring).
2. The shifters are not considered rebuildable. I would not attempt doing it. Your left shifter sounds like is needs a cable adjustment. When correctly adjusted, the shifter is capable of two positions when in the big ring (for trimming). The initial shift should put it in its outermost (away from the frame) position. Best for being in the lower number cassette cogs. A slight tap on the inside lever should make it move slightly inward for use when you are in the big ring and the higher number cassette cogs.