Mike,
Look for holes in the firewall. There may be several that are not used
for anything, so those can be plugged again or taped over. Those that
have cables passing through may need their plugs replaced. Check also for
screw holes that may have appeared over the years. Those plug well with
blue-goo. A method I have used for finding these holes is to raise the
hood, let the sun pour into the engine space, then slither under the dash
and look for light. I have been surprised how many holes there are in my
GT. Plugging these has made a great difference in cold draughts during
winter, heat soaking during summer, and the reduction of noise.
Installing the under-dash panels can help too.
A considerable amount of heat radiates from the muffler. That
dissipates in the open cars but raises cabin temp in the GTs noticeably.
Rigging a heat shield over the muffler can help, as can installing
another layer of carpet padding under the seats.
Three-litre Austin-Healeys are often fitted with heat shields on the
firewall.
Bob
On Fri, 17 May 2002 23:15:01 EDT Mromgbtkd@aol.com writes:
> My MGBGT gets warm no matter what I do to cool it off. The engine is
> modified so it produces more heat than stock. The heat seems to come
from the
> vent and the foot area. I have disconnected the heater hose and this
was of
> little help. When I installed the carpet I wrapped the tunnel with
> insulation hoping that would do the trick. It helped a little but, not
enough. Any
> suggestions are welcomed.
>
> Mike Olsen
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