Re: 1974 CB 750 front brake sticking.

Posted by rm56 on May 25, 2010; 3:09pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1974-CB-750-front-brake-sticking-tp840085p842326.html

Yesterday I removed the pivot, cleaned it, lubed it, and put new o-rings on the shaft. I reassembled the brake but it still sticks. I even checked for .008 clearence which I don't have. When I back out the adjusting screw it backs out but the brake ancor arm does not move towards the wheel. I noticed in the MC fluid cup that the hole closest to the cylinder explelled bubbles when I worked the brake lever. That tells me there seems to be a small amount of air in the system at the MC. With air in there the cylinder would have trouble returning an drawing the caliper piston back away from the disc. I also plan to remove the caliper and check the condition of the piston and seal as well as the caliper bore for corrosion. I will pick up a small brass dremel brush to clean it. Very frustrating since this is all that is keeping me from gettng back on the road. Again thanks for the help.

Rick