The Leyland Parts Catalogue only shows one part number for all 4-cylinder
clutch slaves, so no concept of early and late MGB types. Having said that,
whether the piston is alloy or steel I don't know. Was it cocked *inside*
the bore? I have seen them cocked at the end of the bore when the release
bearing or some other part of the mechanical linkage to the cover plate
broke and successive pumps of the pedal pushes the piston out. Does the
piston wear? I would have thought it would be the seal taking the wear,
largely holding the piston itself clear of the cylinder walls. Could the
cylinder have been opened out too much? Or a mismatch between piston and
cylinder?
PaulH.
----- Original Message -----
> Since I don't have a spare in hand, can somone tell me if the MGA (and
> early MGB) clutch slave cylinder is supposed to have a steel or aluminum
> piston?
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