Ingah Posted May 19, 2009 Posted May 19, 2009 Took the rear wheel off the CG - removed rear drum brake and handed to a mechanic (drum was binding on use). Mechanic freed it up for me and put some copper slip in too. Put bike back together and have found the rear brake doesn't actually work now! (brake arm is moving as expected but the wheel is still turning so no braking force is being applied) have tried to adjust so its not that. Am going to take the wheel off again and have a look, I assume i'll see what i've done wrong when I have it off but what do you guys think? Quote
zzr lon Posted May 19, 2009 Posted May 19, 2009 Took the rear wheel off the CG - removed rear drum brake and handed to a mechanic (drum was binding on use). Mechanic freed it up for me and put some copper slip in too. Put bike back together and have found the rear brake doesn't actually work now! (brake arm is moving as expected but the wheel is still turning so no braking force is being applied) have tried to adjust so its not that. Am going to take the wheel off again and have a look, I assume i'll see what i've done wrong when I have it off but what do you guys think? shagging dont usually mess up drum brakes think you have fitted the brake arm wrong.when the arm is applying the brake it should be at 90deg in relation to the adjuster so get that right and then adjust the adjuster till you get some freeplay at the peddle say 15-20mm and see how you get on Quote
Ingah Posted May 19, 2009 Author Posted May 19, 2009 Well took the wheel off (again) and had a look:With ref to Picture1: Found that i hadn't put the torque arm (i think that's what it's called anyway) back on properly, it was loose and able to move which could have affected the brake, but not sure. In picture, A) Was the bolt around which things weren't tight enough, resulting in B) being able to move about.Picture2: Re-assessed my earlier decision that the shoes were fine and decided they weren't - 4.1mm when new, 2mm being the wear limit. Guesstimated (no ruler!) that one of the shoes at least was in the region of 1.0-1.5mm (kicked self again for deciding shoes were fine earlier). So have taken the shoes out and am going to get them replaced (any ideas for somewhere cheap guys?)Picture3: Wheel hub, do these ever need replacing as it appears that the brake lining in it will wear down over time due to contact with the brake shoes. Also, is it safe to clear the crap off this brake lining with a wire brush?Wasn't able to work out any other possible way in which the brake could not work - so am hoping that a correctly tightened torque arm and new shoes will solve my issue. Fingers crossed, eh? Picture 1Picture 2Picture 3 Quote
zzr lon Posted May 20, 2009 Posted May 20, 2009 dont worry to much about a bit of rust as it will come straight back until you get the shoes in.just give em a wipe out with a clean cloth.the drum will wear eventually but i think you will be really old by then try david silver spares for brakes but they will be cheap anyway. Quote
Guest Posted May 20, 2009 Posted May 20, 2009 the torque arm is designed to hold your brake in position when force is applied, so you were adding force and the wheel was pulling and levering on the torque arm, so you have found your problem.try wemoto for your shoes..http://shop.wemoto.com/index.dyn Quote
Ingah Posted May 20, 2009 Author Posted May 20, 2009 Thanks for the replies guys.Ordered the new shoes earlier today from David Silver (someone recommended him to me a couple of weeks back), £6+VAT+delivery.Thing is, i couldn't help but pick up a few bargain priced spares whilst i was there, and so the total price has come in at £60 Thanks for that Frankie, i was just going to put it back together with my fingers crossed and my lucky socks on. At least i now know it'll be fine and have heard of wemoto before, i'll bear them in mind next time. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.