Vapour lock

Technical Area for all the problems you have in the garage
simonjrwinter
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Re: Vapour lock

Post by simonjrwinter » Fri Aug 23, 2019 1:21 pm

Up to 6 times now
TR6 (V8) Hawk 289 FIA (V8) Doing my bit for global warming.

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clive
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Re: Vapour lock

Post by clive » Fri Aug 23, 2019 5:17 pm

It doesn't sound like a vapour lock to me, it sounds more like fuel starvation. Is your tank vented? What is your float level like? What is your fuel pressure to the carb?
Cheers, Clive.

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simonjrwinter
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Re: Vapour lock

Post by simonjrwinter » Fri Aug 23, 2019 11:30 pm

Hi Clive,
Well, no fun at all today!
Nightmare journey to Carfest. Engine stopped 8 times in total. 10 mins with the bonnet up cooled things sufficiently to get it going again. Yes, tank is vented, fuel pressure and float level...don’t know. I have a filter king filter/ pressure regulator but don’t have the gauge to check.

Simon
TR6 (V8) Hawk 289 FIA (V8) Doing my bit for global warming.

simonjrwinter
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Re: Vapour lock

Post by simonjrwinter » Sat Aug 24, 2019 9:35 am

Have ordered a fuel gauge for the filter king. What pressure should I expect? It’s a 335 bhp motor.
Simon
TR6 (V8) Hawk 289 FIA (V8) Doing my bit for global warming.

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clive
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Re: Vapour lock

Post by clive » Sat Aug 24, 2019 10:29 am

For a Holley about 6psi.
Cheers, Clive.

(If I'm not here I'm in my workshop or on the golf course!)

simonjrwinter
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Re: Vapour lock

Post by simonjrwinter » Sat Aug 24, 2019 11:34 am

That’s interesting, found a pressure gauge and checked it...exactly 3psi!
Have adjusted it to 6psi now. Will see how that works.....
TR6 (V8) Hawk 289 FIA (V8) Doing my bit for global warming.

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clive
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Re: Vapour lock

Post by clive » Sat Aug 24, 2019 12:20 pm

There are plenty videos on You Tube showing how to set up Hollys.
Cheers, Clive.

(If I'm not here I'm in my workshop or on the golf course!)

simonjrwinter
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Re: Vapour lock

Post by simonjrwinter » Sat Aug 24, 2019 12:45 pm

Thanks Clive, I ran the car up to temp (in a hot garage, bonnet closed) and it ran superbly without even a stumble. Now it may be not quite a hot as a queue of cars on the M25, but it was pretty damn hot under there. Hopefully, that has helped with the problem. Thanks for the advice all. Will report back once I’ve driven/queued in the car.
Simon
TR6 (V8) Hawk 289 FIA (V8) Doing my bit for global warming.

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