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I have had a long running problem with the front brake caliper not retracting after application. This has always been remedied by removing the caliper piston and cleaning everything. This will last for about a year when it needs to be done agin. I have a 1976 CB550F bought new.I have asked the dealer mechanics and bike mechanics about this chronic problem and all I ever got was that blank stare like deer in the headlights. The Honda repair manual talks about greasing the back of the pads and the caliper housing but they don't tell you with what and their parts department has never heard of such a grease! I finally got tired of this constant problem and performed a Google search which led me here.In the brake FAQ section it is said to use Dow Corning High Vacume Silicone Grease ($16.34).I found also that Permatex has recently offered their Ceramic Extreme Brake Lube (part #24125).They state that it has a melting point of around 2800 degrees F which exceeds the Dow Corning grease. That should certainly halt migration of the grease. It is available in a blister pack for small quantities or an 8 ounce bottle ($16.94).
These little return holes get plugged with debris from the ages. They can often be cleared with a fine wire like from an electric cord.
Thanks for the replies! As I said this has been a chronic problem that I want to leave on the trail behind me!I will try your suggestions. Thanks again.I was just impressed with the melting temperature of the Permatex at 2800 F!
If she still wants to ride she might like a little CB350four. they're light, small, and tons of fun!
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