Is the fuel filter housing bad?
When you remove the glass bowl to replace the fuel filter the fuel stops flowing.
After replacing the filter, when you screw the bowl back on, the fuel starts flowing.
So, could the housing be bad?
Or the filter bowl is not tight?
The fuel never enters the reservoir faster than a drip. Whether the bowl is screwed in or not. When installed Isn’t the filter supposed to open a valve to let the fuel flow?