I've been spending vast amounts of time, off and on, trying to bleed an
all new clutch system on a '77 Spider - M/C, slave, hose; not to mention
disc and pressure plate - with no success until now (at least I think
it's bled). I just removed the exterior spring, and it was perfect. Not
leaving well enough alone I replaced the spring (note: no turning the
bleed screw off and on during any of this today) and the pedal went half
way down with little pressure. Removed spring, it did take a small extra
push, but is back as it should be.
My theory is that by holding pressure on the fork, either the M/C's or
the slave's fluid openings get 'covered' when there is a fair amount of
pressure on the slave. Comments?
Possibly this fork originally came with a light inner spring and this
'fix' was added later. The exterior spring is what I use on the '69
Spider's slave and I generally don't have all that much trouble bleeding
them.
The fork is pretty sloppy when it isn't under pressure so I'm thinking a
very light spring might be a good idea. I got out my Spring Collection
(coming to a Macy's near you), but all seemed a bit too 'strong'.
The fork without a spring 'almost' looks as if it might jump out if
going over a really bumpy road.
What's your thought on this? Let the fork just hang loose or use a light
spring? The car obviously hasn't been on the road yet to see if it
clanks around, or not.
I'll add that even with the most sophisticated bleed system, and with
the spring in place, I don't think it could have ever been bled.
Biba
Irwindale, CA USA
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