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Old 05-22-2018, 04:39 PM   #17
steve s
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Join Date: May 2010
Location: Kalamazoo
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Default Re: warm model A motor begins to stutter

Quote:
Originally Posted by sojoanfr View Post
Thanks for all informations

fuel flow was good, shut off open there was a good flow out of the plastics filter
....
Remove that filter! They work fine for some people but not for others. Flow tests in driveway are not reliable indicator of what happens going down the road. I suspect multiple problems are in play, and especially agree with all who accuse timing. Even if it's set right, you still need to advance the spark after starting--do you?? (someone else asked this first)

Another straw to grasp at, make sure you don't have a Model B timing gear cover.

Too rich fuel mixture will not cause overheating; just the opposite. Opening the GAV is a quicky way to cool combustion a bit, as the extra heat of vaporization required helps a bit.
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