[Fot] Spitfire Slave Cylinder Vexing Me

[Mike Jankowski]

Hi Everyone,
I've hit the end of my rope on a problem with a Spitfire slave cylinder.
Here's the facts:

Car shifted perfectly until I swapped engines.
Replaced 78 engine with a 76.
Left trans in car, never touched it.
Test drive after swap was good except shifting was notchy and reverse
ground some.
Opened clutch master, reservoir almost empty.
Topped off with fluid, shifting still bad.
Bled clutch, no real improvement.
Double checked slave cylinder to make sure it didn't get loose, made sure
it was all the way forward.
Shifting was better but progressively worsened as driven.
On the move shifting was ok, but hard to get into 1st, ore reverse, and at
stoplight car would creep forward with clutch pedal to floor.
Bled 2 more times, no real change. Had to doubleclutch up and downshifting.
Pulled slave cylinder, put 1964 penny as spacer.
Car shifted like new on test drive, and subsequent drive to grocery store.
On return from store, as soon as started car could tell again not fully
releasing.
Notchiness, though not as bad, is there again.
Slave cylinder is 4 years and 47,000 miles old. (I drive my Spit quite a
bit as well as autocross it.)
Also, at grocery store looked at clutch master and fluid had gone past the
lid, but I suspect it was slightly overfull when we left home.

Do I just replace all the slave cylinder bits? Not really sure what to do
here.
Thanks,
Mike