Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the August Giveaway to Win the SAVA Aurora V3.0 Carbon Road Bike


Shifting and barrel adjustment.
#1
For quite sometime I had gear shifting problem, few days ago I tried to fix the problem on my own. I tried to fix problem by adjusting limit screws and barrel adjuster. While adjusting the barrel adjuster I rotated it all the way, now it is not going back in (may be I tried too much). I even loosen up the gear wire but result was the same. (After 1-3 clockwise rotation it is stuck). While the cable end was out, I notice tiny metal pieces, kind of stuff that develops after rubbing two metals.

• Will changing cable end (not sure what it is called) help? Or, its gear part that is damaged?
• If I tighten up the gear wire using the nut (on the derailleur), will I still be able to fix the shifting problem?

I have a Trek 3700 with Shimano Acera rear derailleur.
  Reply
#2
Hey hey a buddy with the same bike as me! I've long since replaced my derailleur to a SRAM since I bought it but I still remember that old one. I always found it easiest to thread the barrel adjuster in when the cable was out of it, then you just pull the cover back and screw it on. Always worked for me. I never was able to get the derailleur to do exactly what I wanted it to do, but it might be possible. Good luck!
  Reply
#3
pictures ?
Nigel
  Reply
#4
[attachment=2583]
That's what the derailleur is. The adjuster is right where the housing enters into the derailleur. Its an annoying little thing if I remember right.
  Reply
#5
(06-22-2011, 09:03 PM)nfmisso Wrote:  pictures ?

First of all, sorry for bad pic quality. The barrel adjuster is stuck, I cant at all rotate it clock wise any further then that. Only way for me to tighten up the gear wire is tiny nut on the gear.

Is it still possible to fix the gear shifting problem without depending upon the barrel adjuster?


@nameused. Good old trek Smile. In my case the barrel adjuster is stuck, I cant rotate or screw it back in. After only few rotations, it gets stuck Sad. I doubt that I can use barrel adjuster to tighten or loosen up the wire. Sad
  Reply
#6
first off your limit screw is not set. it looks like it is past first gear. cable is cut to short leave about 2 in. then cap it. replace it with as new one set your limit screws correctly.idler pulley when looking from the rear should be directly below low gear (the big cog) next set the high gear (small cog) set the idler pulley off center towards the outside of the small cog. figure out what is wrong with barrel adjuster and screw it in, then string new cable.put shifter in high gear and be careful not to push derailleur when clamping cable.

now make your first shift it may not move to next cog. turn barrel adjuster one notch at a time til it shifts then turn barrel adjuster til it makes noise trying to shift again then back it off 1 notch til sound stops. now run up and down through the gears back and forth see how that works. the key is the high limit screw setting, find the sweet spot.

I would also note by the pic make sure your derailleur has not been knocked out of alignment.
you really do need to get the barrel adjuster to work
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
1,114
05-14-2020, 08:14 AM
Last Post: Dany6
 
12,211
07-22-2015, 06:43 PM
Last Post: knl
 
7,137
09-15-2013, 03:34 PM
Last Post: Joe_W
 
11,010
09-05-2012, 11:13 PM
Last Post: Bill
 
17,064
05-16-2011, 12:07 PM
Last Post: Bill

Forum Jump:

[-]
10 Latest Posts
The LAST High-End Rim Brake Bike?
Yesterday 06:14 PM
(So California) PV Dr to be closed to bi...
Yesterday 04:19 PM
Failure to stop at stop sign means $500 ...
Yesterday 09:08 AM
Anybody watch on YouTube Global Mountain...
Yesterday 07:37 AM
MTB Night Lighting - What are recommenda...
09-04-2024 04:16 PM
What are your best tips for long rides?
09-04-2024 10:35 AM
Would you use WD-40 for cleaning and/or ...
09-04-2024 10:33 AM
Training in the wind
09-03-2024 02:44 AM
New Bike Day (Come One, Come All!)
09-03-2024 02:42 AM
Shimano TZ replacement/adapter
09-03-2024 01:53 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
17 posts
no avatar 2. enkei
14 posts
no avatar 3. ReapThaWhirlwind
12 posts
no avatar 4. meamoantonio
12 posts
no avatar 5. Talha
11 posts