Remove some of the fluid from the reservoir otherwise pressing the
pistons back into the caliper will force extra fluid into the
reservoir resulting in overflow.
Remove the pads.
Take a 12 in Crescent wrench.
Open the jaws of the crescent wrench just a little.
Stick the HANDLE of the Crescent wrench between the disk and the
piston (in the caliper); contact should be at the center of the piston.
Put a screwdriver blade or the handle of another wrench into the jaws
of the 1st wrench.
Twist the screwdriver, causing the handle of the Crescent wrench to
rotate against both the disk and the piston. Slow and steady and the
piston will retreat.
When released the piston should move out of the caliper just a
"smidgen" but still leave enough room to put a pad in.
Under no circumstance should the brake pedal be depressed when the
pads are not in the caliper; that would cause at least one of the
pistons to be pushed out of the caliper.
Good luck,
Pat
On Aug 27, 2009, at 11:36 AM, Robert J. Guinness wrote:
> Does anyone have any practical tips on replacing the front disc
> brake pads on an MGA? I cannot get the new pads in because the
> space taken by the old pads is not wide enough for the new pads.
> The manual says to clamp the piston, but any clamps I have get in
> the way. Anyone have a web reference to a video or photo references
> that may help a first-timer through this process? Thanks.
> --
> Robert Guinness
> 1961 MGA
>
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