The Ford Barn

Hutch07 · 05-18-2013, 07:09 PM

https://www.youtube.com/watch?v=ELXqNWEpAR4

My 1950 8BA flathead is chugging after it warms up. I have the original 8BA labeled carburetor and glass fuel bowl. After I sit on the side of the road for about 5 min and let it just idle it will let me get enough RPM and feather the clutch to "GET HOME" about 1 mile at a time. It seems like there is a sweetspot in the throttle that I can feather the pedal to get down the road and it will happen again. Once it cools down it starts like a dream and will idle all week.

My first thought is the fuel pump.

This is my first flat head and would appreciate a lesson or two.

The stumble is there when I first start but not as bad. It will idle all day but when it warms up it really chugs and becomes impossible to drive.

I Have tried disconnecting the vacuum advance and driving but there was no change.

Maybe fuel pump??

05-18-2013, 07:09 PM	#1
Hutch07 Junior Member Join Date: May 2013 Posts: 22	Stumbling 8BA went drivable to bad https://www.youtube.com/watch?v=ELXqNWEpAR4 My 1950 8BA flathead is chugging after it warms up. I have the original 8BA labeled carburetor and glass fuel bowl. After I sit on the side of the road for about 5 min and let it just idle it will let me get enough RPM and feather the clutch to "GET HOME" about 1 mile at a time. It seems like there is a sweetspot in the throttle that I can feather the pedal to get down the road and it will happen again. Once it cools down it starts like a dream and will idle all week. My first thought is the fuel pump. This is my first flat head and would appreciate a lesson or two. The stumble is there when I first start but not as bad. It will idle all day but when it warms up it really chugs and becomes impossible to drive. I Have tried disconnecting the vacuum advance and driving but there was no change. Maybe fuel pump??