The Ford Barn

billybronco1 · 09-18-2017, 06:07 AM

Lately I have an issue with my 31 coupe stalling out and hard starting after she is hot and sits for a while. She starts right up cold, we go for a ride on a hot day, I park the car and do not shut the fuel off, she might sit for 20-30 minutes. I go to start it and she starts but dies in a few seconds then I have to crank and crank and usually she will not start unless I leave it sitting for an hour our more. I noticed when I bought the car the previous owner did not lock down the fuel cap tight but I do. Also wonder if I should always shut the fuel off even if its only for a short time once hot.

Tom Wesenberg · 09-18-2017, 08:11 AM

Turn the gas off a couple hundred yards before you stop and turn the engine off.
The lower gas in the carb might help with the problem of today's gas boiling so easily.

Jacksonlll · 09-18-2017, 08:30 AM

Pour some water on the bowl of the carb. It will start right up. Common problem.

Big hammer · 09-18-2017, 11:57 AM

Try leaving the gas cap loose like the previous owner, its very common problem! If that then fixes your problem, we can then fix the gas cap :-)

JOHN CT · 09-18-2017, 01:01 PM

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Is the gas line pitching downward? I had the same problem when the weather was hot. I adjusted the gas line so it's pitched downward and amazing it worked. And it didn't cost me anything

09-18-2017, 06:07 AM	#1
billybronco1 Senior Member Join Date: Dec 2012 Location: MA Posts: 570	Possible Vapor Lock ??? Lately I have an issue with my 31 coupe stalling out and hard starting after she is hot and sits for a while. She starts right up cold, we go for a ride on a hot day, I park the car and do not shut the fuel off, she might sit for 20-30 minutes. I go to start it and she starts but dies in a few seconds then I have to crank and crank and usually she will not start unless I leave it sitting for an hour our more. I noticed when I bought the car the previous owner did not lock down the fuel cap tight but I do. Also wonder if I should always shut the fuel off even if its only for a short time once hot.

09-18-2017, 08:11 AM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Possible Vapor Lock ??? Turn the gas off a couple hundred yards before you stop and turn the engine off. The lower gas in the carb might help with the problem of today's gas boiling so easily.

09-18-2017, 08:30 AM	#3
Jacksonlll Senior Member Join Date: Jul 2012 Location: Michigan-- Member of Oakleaf of MARC Posts: 1,686	Re: Possible Vapor Lock ??? Pour some water on the bowl of the carb. It will start right up. Common problem.

09-18-2017, 11:57 AM	#4
Big hammer Senior Member Join Date: Jun 2014 Location: Land of Lincoln Posts: 3,127	Re: Possible Vapor Lock ??? Try leaving the gas cap loose like the previous owner, its very common problem! If that then fixes your problem, we can then fix the gas cap :-) __________________ Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done

09-18-2017, 01:01 PM	#5
JOHN CT Senior Member Join Date: May 2010 Location: In my garage Posts: 465	Re: Possible Vapor Lock ??? Sponsored Links (Register now to hide all advertisements) Is the gas line pitching downward? I had the same problem when the weather was hot. I adjusted the gas line so it's pitched downward and amazing it worked. And it didn't cost me anything __________________ 31 Tudor 66 Bonneville 57 Chevy pickup 27 T roadster pick up