Originally Posted by speed47
The rear v brake on my bike does not release properly. The side where the cable housing sits does not retract from the rim. The side where the inner cable attaches works properly. If I remove the cable housing from the arm there is plenty of spring tension there and it fully retracts. I have greased the mounting point on the braze on. I have tried adjusting the tension with the adjustment screw but it does not solve the problem. I am thinking that I can probably change the position of the spring on the braze on to a hole that will provide more tension on the not working side and to a hole that will provide less tension on the working side. Is this ok? Can anyone offer another suggestion as to what to try?
A few options:
1. Does the brake retract all the way to the other side ?
I.E. One arm opens more than usual.
If so, I think you need to adjust both adjustment screws. There is one on each arm and both need to have approximately the same tension. If the tension is too weak on both sides, you'll get unpredictable results.
Greasing the pivots is something I need to do once a year, but it seems you have already done that. But have you inserted both springs in the centre hole? If not, that's a sure way to get uneven tension.
Cable or noodle hits somewhere. Especially if you changed something in the cable run, make sure that your cable housing or noodle doesn't hit one of the stays holding your rear rack (been there, done that), a taillight, your leg... Occasionaly, a too tight cable run might interfere with brake activation.
2. Does the brake hit in one point only?
Check that the wheel is true.
3. Does the brake take a very long time to open by itself, yet the exposed cable seems tight all the time?
Check for kinked cable or housing near the noodle.
4. Does the brake take a very long time to open by itself, and is the exposed cable on the top tube very slack at that time?
Unless you sit on the cable, that usually happens because of a kinked cable or housing along the handlebar.