Booster and MC
Joe Elliott wrote:
> > No shims, pedal sinks to the floor. Two shims, pedal is
>> high but dragging. One shim, everything seems fine.
>
>WHAAAA??? Okay, now that's just freakin' weird. And it doesn't make
sense.
My sentiments exactly. One of my non-Alfas requires some shims,
without which the brakes will seize up after a few minutes of
driving. Brian's Milano's behavior seems backwards, and I always
thought the Alfa master cylinders were entirely conventional in
design.
Actually, the behavior we're experiencing seems normal, yours seems
backwards!
Adding shims essentially lengthens the rod between the brake pedal
and the
MC, which reduces free play. If you have no free play, it's as if
you never
fully release the pedal, and you'll experience drag. Too much free
play and
you will need to pump the brakes to get pressure. That's pretty much
what
we're experiencing.
As an aside, I happened to take a look at a Spider booster
yesterday. The
rod coming out of the booster was threaded, with a round headed nut
on the
end. That's how you adjust the free play on a Spider. Looks like the
Milano/GTV6 was cost reduced, I'm sure they saved a penny or two by
dropping
the nut and not threading the rod..
Are you placing shims between the booster and the MC or the chassis
and the booster?
-Joe
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