[Healeys] Hot idle issue

i erbs eyera3000 at gmail.com
Fri Jun 22 18:44:07 MDT 2018

I am thinking vapour lock

Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

On Fri, Jun 22, 2018, 4:59 PM Roger Grace <roggrace at telus.net> wrote:

> My BJ8 does the same.
> I may be wrong, but think it may have something to do with engine
> compartment temp at the carb intake area; air becomes less dense and hence
> less O2 for combustion and mixture is now too rich at the idle setting and
> starts to splutter.
> I have put in one of those cheepo home wireless temp monitors (Wallmart)
> in that area; in cabin able to monitor the engine compartment temp as well
> as the air temp.
> Seems to start when compartment goes approaches 150F plus when idling on a
> hot day – particularly when the oil is hot after a run. Temp rises quite
> quickly when you stop. Also oil temp.
> One of the AH problems is that there does not seem to have a decent exit
> path for the air entering. You can blow all you want through the rad but
> you have to get the air out efficiently to keep engine compartment cooler.
> Don't have a solution but maybe a pair of boat bilge fans ? or redirect the
> cold air intake to carb area ?
> BTW have recently installed an electric water pump to improve cooling
> capability at idle – separate topic.
> rg
> *From:* i erbs
> *Sent:* Friday, June 22, 2018 11:51 AM
> *To:* Ahealey help
> *Subject:* [Healeys] Hot idle issue
> Had an idle issue when car got up to normal temp about 175 or so. Had the
> carbs looked at. Found low float level. Fixing that fixed idle issue,  but
> not it's back when car runs above 195 in hot day stop and go traffic.  New
> flex fan. Rotted out extra core radiator. New su fuel pump. Car idles, then
> rpms fall and car stalls unless I pull out choke or rev engine.  Vapor
> lock??
> Any ideas?
> Ira Erbs
> Portland, OR
> typos and artifacts are the fault of my phone
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