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Old 04-26-2014, 01:41 PM   #121
Old Henry
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Default Re: Vapor lock 1 and 2

When I first started my long road trips I was curious so kept track of mpg just to see. It seemed low at 11+ not quite 12 mpg. Posted on the barn and got responses that was way low as others were getting 15-17. I had, a few years previous, put in larger carb jets to reduce my engine temperature and ping which worked but I had the thought that it also reduced my mpg. So, I put the smaller ones back in and mpg jumped to almost 15 mpg.

I don't keep track any more but it does make some difference when I'm driving well over 1,000 miles per month.

More on gas mileage here; https://www.fordbarn.com/forum/showthread.php?t=99762
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Last edited by Old Henry; 04-26-2014 at 02:26 PM.
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Old 04-27-2014, 09:20 AM   #122
gary635g
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Default Re: Vapor lock 1 and 2

Test gage only connected to line into carb. during test.
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Old 04-27-2014, 01:28 PM   #123
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Default Re: Vapor lock 1 and 2

Quote:
Originally Posted by gary635g View Post
Test gage only connected to line into carb. during test.
That's where you need the gauge in the fuel line, T ed into the pump to carb fuel line.
Read it cold when the engine is started and it gets lower as the fuel pump get hotter. !25 degrees on the top of the pump and below 1.5 lbs fuel pressure and the trouble starts. G.M.
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Old 05-03-2014, 08:16 AM   #124
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Default Re: Vapor lock 1 and 2

Thanks for good info,work on hold until I return to land of the winter sun in October. Gary
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