brakes seizing up on older motorhome.
We have replaced all calipers, flexible hoses, master cylinder, and power assist booster on our 1985 Class A P30 Chevy chassis motorhome. After traveling 2 to 3 miles, the travel on the brake pedal b...
Forum Discussion
jplante4 wrote:donfrump wrote:
there are no "cylinders" to hone out on disc brakes
Ok. I'm willing to bet that I was working on brakes before you were born...
Have rebuilt tons of calipers and have cleaned/scotch brighted/glass beaded them but never honed as the piston is not a tight fit. Have replaced lots of pistons with new ones etc.I have never honed like a wheel cylinder however? I guess u could hone them? just never did it that way.MY point was a wheel cylinder has to be honed so the rubber cups have a clean non porous finish to seal against.Calipers don't work that way as the piston simply seals against the thin rubber sealing ring.But then I will assume you know that already.
So I concede you could hone them ? but why? there is no precision fit of rubber to surface as a wheel cylinder requires.
back in the old days we used to have oversize cups in stock in case we had to hone too much for a clean seal surface.Calpers don't require that
