How to take apart Shimano indexing bar end shifters?
02-16-08, 03:55 AM
#1
Senior Member
Thread Starter
Join Date: Jan 2004
Posts: 619
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
How to take apart Shimano indexing bar end shifters?
I have a pair of 8-speed indexed shifters, well-used. I moved the selector to friction mode, and it felt like something snapped inside, and now the selector moves freely with very little resistance, and it moves all the way around.
This means that the shifters are stuck in friction.
I took them off the mounts, and it looks like the parts are press-fit into the lever or something like that. I can't figure out how to get them apart.
Obviously the selector was moving something inside of the shifters, if I can find that thing and move it back into place, I should be able to get indexing back.
Does anyone know how to get at the mechanism inside?
This means that the shifters are stuck in friction.
I took them off the mounts, and it looks like the parts are press-fit into the lever or something like that. I can't figure out how to get them apart.
Obviously the selector was moving something inside of the shifters, if I can find that thing and move it back into place, I should be able to get indexing back.
Does anyone know how to get at the mechanism inside?
02-16-08, 04:30 AM
#2
Senior Member
Thread Starter
Join Date: Jan 2004
Posts: 619
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Actually, it seems that I figured it out.
In order to get the guts out of the shifter, I had to break off the black plastic cover. After that, everything is threaded on and it is pretty obvious what is going on. I now have indexing back.
It turned out that the little selector (the one you use to go from friction to indexing mode) had stripped and was no longer moving anything, which is why it was spinning freely. Once the unit was opened, I saw that it was moving a nut which tightened the indexing stops against the springs. I was able to turn it with needlenose pliers, and now it works just fine.
In order to get the guts out of the shifter, I had to break off the black plastic cover. After that, everything is threaded on and it is pretty obvious what is going on. I now have indexing back.
It turned out that the little selector (the one you use to go from friction to indexing mode) had stripped and was no longer moving anything, which is why it was spinning freely. Once the unit was opened, I saw that it was moving a nut which tightened the indexing stops against the springs. I was able to turn it with needlenose pliers, and now it works just fine.
02-16-08, 08:44 AM
#3
Perineal Pressurized
Join Date: Oct 2003
Location: In Ebritated
Posts: 6,555
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
You shouldn't have had to break off any cover. Shimano's web site has schematics which show how to assemble/disassemble the units.
__________________
This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.
This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.
