Bill,
The brake master cylinder shall have a larger internal bore than 0,625.
If I remember correctly 0,875. That cylinder is easy to distinguish
between
the 0,625 because it is longer.
The large bore was used in conjunction with the servo as it moves
more fluid,
aka gives more force on the calipers and brake cylinders, with the same
pedal movement. If used without a servo it would give you a very
stiff pedal.
If used on the clutch it would give you a little harder pedal but
would put a
lot of strain on the clutch slave and mechanism as it will give a
longer travel
exceeding that of the slave.
The small bore if used with the servo would give you a very soft pedal.
Magnus Karlsson
Sweden
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