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

kenparker · 07-27-2020, 07:08 AM

Check the soot level - color of your spark plugs. Smell the exhaust. It should NOT smell like a diesel. Check color of exhaust. again, it should NOT be black. Both of these are symptons of running rich, which would account for the 11 mpg.

07-27-2020, 07:08 AM	#8
kenparker Senior Member Join Date: May 2010 Location: Van, Texas Posts: 1,122	Re: 1930 Sport Coupe 11 MPG, backfire when turned off Check the soot level - color of your spark plugs. Smell the exhaust. It should NOT smell like a diesel. Check color of exhaust. again, it should NOT be black. Both of these are symptons of running rich, which would account for the 11 mpg.