>Does anybody know what the purpose of the spirals are for in the master
>cylinder-to-slave cylinder pipe? And, are they important? My '67 had
>three spirals in it, while I looked in my friend's '70, which only has one.
> I replaced that original pipe this weekend with one that I formed, but it
>was too short to put any spirals in and I'm wondering if that's something I
>need to worry about. Thanks in advance!
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Yep they are in there for a very good reason. These coils (about 1-1/2 or
2 inches in dia) are there for stress relief. Since there is no flexible
hose, and the engine/tranny move with vibration, engine torque, loading,
and you have only a rigid line connecting the slave cylinder to the master
cylinder, you need a way to allow this movement without stressing the
connections or the hose itself. It's achieved in this application
(Spitfire/GT6) by inserting a couple of coils to act like a spring of sorts
to absorb the slight movement between the engine vibrating/torque movement
and stationary body. In most other applications a flexible (read
eventually wears or rots out) hose is used. That's one advantage of using
a solid connection, nothing to wear out or burst when you least expect it.
I would redo the pipe and put the coils back in. If you don't the added
stress will eventually crack the pipe somewhere-
Barry Schwartz (San Diego) bschwart@pacbell.net
72 V6 Spitfire (daily driver)
70 GT6+ (when I don't drive the Spit)
70 Spitfire
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