The Ford Barn - View Single Post - 1930 Sport Coupe 11 MPG, backfire when turned off

rotorwrench · 07-27-2020, 09:02 AM

I adjust the GAV for best running at speed while under load myself. I don't mess with it after that. I turn the fuel off with the fuel valve.

If you close the GAV off, it shouldn't pull a load well at all. If it doesn't change the way it runs then its either stopped up with crud or there is and internal leak running raw fuel into the throat, or both.

07-27-2020, 09:02 AM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,426	Re: 1930 Sport Coupe 11 MPG, backfire when turned off I adjust the GAV for best running at speed while under load myself. I don't mess with it after that. I turn the fuel off with the fuel valve. If you close the GAV off, it shouldn't pull a load well at all. If it doesn't change the way it runs then its either stopped up with crud or there is and internal leak running raw fuel into the throat, or both.