The Ford Barn - View Single Post - Tri-power issues

SoCalCoupe · 06-28-2025, 05:18 PM

Pulled the carbs today and am 75% certain I found a major source of the problem. Gas was leaking from somewhere into the main body of the middle carb even as I lifted if off the manifold. That's consistent with me seeing fuel vapor rising from the middle carb when hot.

Checked the metering block mating surface on the main body and found it to be about 0.017" out of square. According to my "3 Deuces, Version 2" booklet, that's a "VERY CRITICAL" flaw that has to be fixed by machining the surface.

Now to find someone who has the skills to correctly machine the main body of a carb. Any thoughts?

BTW the power valve was fine although a blown power valve would have caused nearly identical symptoms.

06-28-2025, 05:18 PM	#39
SoCalCoupe Senior Member Join Date: Sep 2021 Location: Point Loma, San Diego, CA Posts: 556	Re: Tri-power issues Pulled the carbs today and am 75% certain I found a major source of the problem. Gas was leaking from somewhere into the main body of the middle carb even as I lifted if off the manifold. That's consistent with me seeing fuel vapor rising from the middle carb when hot. Checked the metering block mating surface on the main body and found it to be about 0.017" out of square. According to my "3 Deuces, Version 2" booklet, that's a "VERY CRITICAL" flaw that has to be fixed by machining the surface. Now to find someone who has the skills to correctly machine the main body of a carb. Any thoughts? BTW the power valve was fine although a blown power valve would have caused nearly identical symptoms.