Subject: Fw: valve springs
----- Original Message -----
From: Alan
Subject: valve springs
<The early tr6 engines did not have the inner valve springs and the
latter years do.
Does anyone know what the purpose of the inner spring is? And , is it ok
to run with out it. If so, i would imagine that one would have to use
the earlier outer spring?>
Alan---There's probably more than one reason for going to the second,
shorter and lighter valve spring found in the later engines.
The first one that comes to mind would be the backup it provides in case
an outer spring should break. I don't think only a single lighter spring
would let the engine rev much beyond 3,000 but it would get you home.
The broken spring would also rattle as engine speeds increase, just to
let you know.
There might also be a benefit of the extra tension such a spring would
provide on the valve train, as each cam lobe "turned the corner". I can
see where adding an inner spring could reduce the rate of the outer
spring, if desired.
Dick
<Cars going in for a face lift next week. It was originally java green,
before somebody dipped it in metalic blue. I still haven't decided but
it will probably come out metalic blue again since returning it to java
, would be to much of a project. Stripping parts off this weekend.>
Al Salvatore
76tr6
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