"Andrew C. Green" writes:
[...] talk about the "coolant" line on the intake manifold on the TR6
> This is getting into a side issue, but does it really heat the fuel/air, or
> is it intended to heat the carburetor... as a heat source to cut the choke
> or whatever is necessary to reduce the fuel/air mixture as the engine warms
> up? Just a thought. I've seen the latter, although the plumbing usually goes
> right to the side of the carb, not via the manifold...
IMO, I think that the coolant line cools the manifold in the case of
the TR6. Since the exhaust manifold is so very close to the intake, I
*think* that this setup is too hot to handle, and the engine just
wouldn't run as efficient with such hot air going into the cylinders.
I've always heard that cool air is a good thing in a fast engine, as
it is denser and therefore is able to carry more fuel into the
cylinder. This all makes sense to me, especially in the case of the
TR6 since the exhaust manifold is so close to the intake, and the
carbs are mounted against rubber insulators on the manifold. I think
those rubber buffers are there to insulate the carbs from the extra
heat. For those of you who have bypassed this hose, you probably are
correct in that your car runs fine... but what about those hot days...
Is it ok then too? I really am just speculating on all this and would
like to know what the engineers at Triumph were drinking, uh I mean
thinking, when they designed this setup. :-) Any comments or
corrections to what I think are welcome -- I think...
---
"All the parts falling off this car are of the very finest British
manufacture"
-Scotty
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