The cutout is designed to alleviate pad squeal. Its efficacy is
questionable, but if you have the cutout, it should be facing into
the rotor rotation, so downward and toward the hub for a rear mounted caliper.
Peter C
===
At 01:39 PM 3/15/2011, Mark LaPierre wrote:
>Don't think this really pertains to Healeys but the MGA and MGBs have brake
>caliper pistons
>with a cut out on the open lip of the pistons. I am changing over my MGA
>pistons to
>MGB pistons (much cheaper) and need to know which direction the piston cut
>out
>should go. Here is the rub. The B manual says "cutout towards the hub" and
>the A manual
>says "facing downward". Since I am mixing parts here I am all
>discombobulated.
>
>Which way should the cut out go and what frigin difference does it make,
>there's nothing
>inside the piston thats going to leak out? )
>
>Anyone? Mark
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