Please help me with the left Shimano 9000 shifter. It has a clicking sound earlier and failure to shift, now it doesn't work at all.
What can I do with that without money? Is it real to fix or find some cheap spare parts? And if not, could use the NW chainring and convert it to one-by with the Dura Ace 9000 rear derailleur?
Shimano Duea Ace 9000 (2×11 speed) left shifter doesn't shift
byu/Stepaskin inbikewrench
by Stepaskin
7 Comments
You don’t have your cable head seated. Pull the cable tight and make sure the head sits squarely in the recess. Then try shifting under tension from the derailleur.
The Dourace 9000 is not serviceable. First he super sure to cheque there is not cable remnant in the head. Often they break and are sometimes near impossibly to remove. Maybe you can get crafty like a watch repairman and disassemble it further, by filing and punching out pins and recreating the mechanism. That’s your only chance. You will have to be a precision hand-cradt mechanisce for to do that. Other is to replace by ebay. Lo siento.
Could just be gummed up. One option is to put it into an ultrasonic cleaner and relube it. Another option is to take it fully apart, manually clean each part and reassemble, which may be possible but I don’t really recommend because it’s complicated as fuck in there and there’s a good chance you can ruin the whole thing, but it *is* possible if you are really smart about mechanical things
You should be able to fix this. Shimano uses a grease that gets hard over time, kinda like honey crystalizing. So, grab a heat gun, or hair dryer. Keep the bike in the position it is in, and you can see the pawl that is not working. It is right in the middle. Below the pawl, you can see the notches that the pawl is supposed to connect with, and you can see that it is not rotating into those little notches. So, hit it with a heat gun, that will loosen up the thick lube, then lube with tri-flow or any chain lube, and work the shifter paddles back and fourth to work the lube into the pawls.
I’m assuming it started this after you disconnected the cable.
if it was in the big ring position when you disconnected the cable than it won’t downshift without tension from the cable.
Pull the cable tight by hand and shift to the small ring.
You were able to remove those plastic covers and expose the ratchet mechanism because this shifter was designed to be easily cleaned and lubricated. You need to degrease it and lubricate it.
Say hello to microNew shifters 🤣