[Healeys] over heat + misfire

[Alan Seigrist]

Sam -

Your first thing is to make sure that your radiator has been rodded
recently.... BN1s should run cool... they have an adequate cooling
system.

If that doesn't fix it, you can place some insulation material around
the float bowls of the carbs which will prevent them from
overheating.... the heat barrier on the 100s is insufficient for hot
days and sitting at idle.  This causes boiling in the float bowls and
effectively a form of vapor lock.  To permanently solve this problem,
Jet Hot coat your exhaust headers and heat deflection plate, this
works VERY well to solve this problem.

Also wrap some exhaust header tape around the exhaust pipe under the
fuel pump in the back, this can help reduce vapor lock.

Alan

On Tue, Aug 21, 2012 at 1:44 AM, sdesalvo at frontiernet.net
<sdesalvo at frontiernet.net> wrote:
> My BN1 misfires, overheats, and is on the verge of stalling when sitting in
> traffic at idle. I have to continuously pump the accelerator to keep from
> stalling. Crossing into Canada takes an hour in traffic at idle. Not a pretty
> scene. Any ideas what to look for?
> Sam
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