Brake dragging?

[james accordino]

--- Scott Dudevoir <greatway at gateway.net> wrote:
> About every couple of years my '85 5000S develops

> My assessment is the front disc brakes are getting
> hung up and dragging
>  on the rotors.
> 
> I have tried a number of repairs to eliminate:
> system bleed, caliper
> rebuild, master cylinder replacement.
> Thoroughly cleaning all the contact surfaces has
> seemed to help the most
> in the past, BUT NOT ALWAYS.

The time interval seems to indicate either mucked up
caliper piston or slide pins.  If either of these
doesn't move freely, it causes what you describe.  You
said you got the calipers, but did you check the slide
pins in the carrier for proper/clean grease and or
excessive wear?  A long shot would be the swelling
brake hoses I've heard tell of.  Apparently they swell
internally, and don't let the brake fluid return.  I'd
check the pins first.  A kit with the proper
amount/type of grease and new boots to do both sides
cost me about $6.

Jim Accordino