Darrell :
I believe the connection is there to deliberately transfer heat, to ensure
that fuel cannot puddle in the intake manifold (and possibly to help prevent
carburetor icing). Later cars actually have a coolant pipe that runs
through the intake manifold for the same reason.
My TR3A is missing the studs, and one of the exhaust manifold brackets.
AFAIK I've never had any trouble with fuel puddling or carburetor icing, but
I live in a warm dry climate where they usually aren't problems anyway.
YMMV
Randall
>
> The intake and exhaust manifolds (I think on all 4 cylinder TRs, but
> certainly on the 4A) are attached to each other with two studs. I'm not
> sure what function that is supposed to provide, other than to
> possibly help
> support the intake manifold. But it also seems that it would
> provide quite
> a good heat transfer, something that seems less that ideal.
> Given that none
> of the headers offered appear to provide this support, and that I haven't
> heard of any rash of intake manifolds falling off, I'm
> considering removing
> the bracketry where these two attach. Any reason I shouldn't do that?
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