Re: Fuel bowl draining …

Posted by kevinpackard On 2021/9/13 22:01:30

Don't know if this will help or not, but my glass bowl used to drain somewhat between runs. It would be at 2/3 full when shut off, then over the course of a day or two it would drop to 1/4 or so. In fact, the bowl would never fully fill when running.

A few weeks ago I finally got around to repairing two leaks in my fuel line....one at the back of the main line at the tank, where it connects to the tank, and the second at the front of the main line where it connects to the flex line at the pump. Turns out both of the original flares had gone bad (split) and were slightly leaking fuel when the pump was not running, as well as sucking air when the pump was running.

No leaks now, and interestingly enough the fuel bowl now is completely full when I run the car, and stays completely full for many days afterwards.

My guess is that the leaks caused air to either enter the lines and force fuel out of the bowl. Or the leaks caused the fuel system to lose pressure and the fuel would drain back somewhere.

-Kevin