I'm working on the brakes of a recently purchased 1978 Mercury
I've never worked on floating caliper disk brakes of this vintage.
My experience has been on more recent cars or on the old 2 piston
fixed calipers like those used by 1960's/70's Mercedes, Avantis and
On my Monarch the brakes were badly neglected putting 1/4" scores into
the left front rotor. It should be replaced.
It looks like the rotor and hub are all one casting with the lug bolts
pressed in. Are replacements available as an assembly with lug bolts
fitted or will some machine shop work with a press be required?
None of my local parts houses have the rotor in stock - it has to be
special ordered and I'd like to know what to expect.
Also, I'm not sure if the sliding surfaces of the floating caliper
should be lubricated. The two sections seem to just grind across each
other versus the modern floating calipers that glide on lubricated
pins. Is some lubrication used with this old style?
There also seems to be a flat wear bushing set into place on the side
of the caliper with a hex head screw. The plate can be slid back and
forth, then it's locked into place with the hex head screw. What's