I know the fuel tank vent line design in the -4 makes it exceedingly difficult for any fuel to exit through the vent. What I’m seeing is my tanks are venting fuel through the center of my caps after a fill up. I have the old black o-ring caps, for reference.
Is this a common problem? Should I look at rebuilding my caps or is this something I’ll just have to live with due to the vent line design?
Is this a common problem? Should I look at rebuilding my caps or is this something I’ll just have to live with due to the vent line design?