shimano v-brake problem
Please forgive this maintenance-newbies' ignorance, but I've got a problem w/my front shimano parallel-push v-brake: the brake arm doesn't seem to pivot right. When I adjust the arm tight, when I pull the brake lever, it pulls correctly, but doesn't "spring back". (only one side is doing this, the other side seems to be working fine). When I loosen it, it doesn't spring back either when the brake is released. Can anyone figure out what's going on with this? I have Zinn's manual, but I can't figure out what could be wrong....any ideas? Thanks,