Dave, sounds to me like perhaps you have some hard rotors, combine those
with soft lining materials, and you can very quickly form a polished glassy
surface on the linings. My advice? Inspect the linings. If they are glazed,
two solutions. Replacement with semi-metallic pads (best) or deglazing the
pads with 60 grit open coat abrasive on a pad, not your hand and fingers.
(second best) If your disc brake conversion involved a P-30 master
cylinder, consider returning to an OEM master cylinder. You need all the
hydraulic pressure that you can get with all disc systems. Another option
might be a hydro-boost hydraulic master cylinder.
Jim Hupy
Salem, Oregon
On Thu, Sep 10, 2020, 9:50 AM 6cuda6--- via Gmclist
wrote:
> If you decide to sand the pads do not sand them length wise...sand them
> across the width or you rotors will look like a record because the pads will
> work make grooves in them....some 40, 80 grit or what ever you have on
> hand placed, on a board etc [something flat], pads in hand not paper in hand
> and just simply clean off the pads surface....if they are grooved dont
> worry about sanding to remove the grooves.
>
> > First try some hard stopping to get the brake pads broken in to the
> rotors. If that doesn’t work take out the pads and sand the surfaces a
> > little bit or replace them. I would suggest Performance Friction pads.
> >
> > Emery Stora
> > 77 Kingsley
> > Frederick CO
> >
> > >
> > > The coach has a disk brakes all around with very few miles on them.
> It sat for a while and there is rust on the rotors.
> > >
> > > The pedal feels consistent, it does not stiffen with pumping so i
> don't think there is a leak or a need to bleed.
> > >
> > > On a low speed stop they feel like they grab pretty well.
> > >
> > > At higher speed it feels like when you tow something way over your
> limit without trailer brakes (don't say you never did that)
> > >
> > >
> > > It just ignores your foot and slows down in its own time.
> > >
> > > Where do i start ?
> > >
> > >
> > >
> > >
> > > --
> > > Dave & Ellen Silva
> > >
> > > 1972 Revcon Olds 455, toro drive train. All Stock
> > >
> > >
> > >
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>
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
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