The Ford Barn - View Single Post - Needle & Seat

29 Tudor · 06-29-2011, 06:24 AM

Jim/TX:
I have tried retarding the spark a bit but it seems to make little if any difference. Of course, if I go too far, the power falls way off. At cruise, she seems to be happiest with the spark most of the way advanced. I have also tried opening the GAV a bit but, as might be expected, it seems to make the symptoms a bit worse and somewhat slower to recover. That might just be perception though as once it happens, its recovery is very predictable.

I'm going to pull the needle/seat completely out today and do the flow test again, just to be satisfied that nothing else is contributing to the problem.

quickchange:
Great thought on the fuel cap... that was one of my first thoughts as well. My cap LOOKS good but to be sure, I reached under the windshield and removed the cap when it started and it made NO difference in the symptoms at all. Then I drove with it off and (other than the gas smell) the problem occurred in exactly the same manner.

Thanks to both of you for the thoughts.

06-29-2011, 06:24 AM	#22
29 Tudor Senior Member Join Date: Apr 2011 Location: Magnolia, TX Posts: 161	Re: Needle & Seat - Now with some real data!! Jim/TX: I have tried retarding the spark a bit but it seems to make little if any difference. Of course, if I go too far, the power falls way off. At cruise, she seems to be happiest with the spark most of the way advanced. I have also tried opening the GAV a bit but, as might be expected, it seems to make the symptoms a bit worse and somewhat slower to recover. That might just be perception though as once it happens, its recovery is very predictable. I'm going to pull the needle/seat completely out today and do the flow test again, just to be satisfied that nothing else is contributing to the problem. quickchange: Great thought on the fuel cap... that was one of my first thoughts as well. My cap LOOKS good but to be sure, I reached under the windshield and removed the cap when it started and it made NO difference in the symptoms at all. Then I drove with it off and (other than the gas smell) the problem occurred in exactly the same manner. Thanks to both of you for the thoughts.