- Tue Jun 27, 2017 2:24 am
#68596
Hi MickB. Glad to hear that you've decided to give Mr H's longer brake arm a go. Nobody should expect disc brake performance out of what is a 70 or 80 year old rear drum brake design but correctly set up and with the longer arm fitted it's hugely improved! As far as fitting the new arm goes, I fitted mine first before doing anything else and on the splines at an approx seven o'clock position. Anyway back to the three nuts: 1/ Remove spit pin and slacken the spindle castle nut, then the large sprocket assmbly nut behind it and finally the cover plate anchor nut. 2/ If snail cam adjusters fitted, ensure that they have not moved from their correct stops. 3/ Now lock the rear brake/wheel hard on, either by tightening the brake rod nut up hard - or by getting somebody to hold the brake lever hard down for you - and tighten up the three in reverse order, i.e cover plate nut first. Then finally release the brake.
Having reset everything the brake shoes will be rubbing and making the wheel tight to turn. Tighten the adjuster nut until you still feel just a touch of drag, then all it should need is no more than a couple more flats tighter for it to turn freely. The arm on mine ended up at approx mid between 6 & 7 o'clock. Correctly set up I was quite surprised just how little arm movement there was between brake normally off and hard on. Finally, do double check that everything is done up tight, including split pin replacement! Let me know how you get on, what year/model is yours?....................R