1930 Fuel Bowl Leak

[Smitty]

Hi All,
For some reason lately I have been experiencing a leak at the fuel line fitting fitting coming off the glass type fuel filter on my 30. When tightening the fitting it just wants to push the ferrel into the bowl rather than compress around the steel fuel line. I changed out the unit with a new one and does exactly the same thing. Do I need to revert back to a cast iron type unit?


Thanks, Steve