Factory plastic fuel plumbng on DB's

ScottNC

Member
I cut the hard, plastic supply line from the fitting on the thermostart before realizing the fitting unscrews. Can it be re-attached to the barb or am I looking at sourcing a new line? What is a suitable replacement given its small diameter? If it's like the rest of the tractor it'll something weird the British came up with.

The fuel line from the tank to the lift pump, sediment bowl and filters may be introducing air at the tank. No fuel leaks from it, it's just not very tight. The fitting at the lift pump however, does leak. The fitting stays wet enough form a very, very slow, annoying drip. The fitting and ferrule on the plastic line appears pristine as does the threaded hole and seat it screws into. Tried to doctor it with a bit of thread tape to no avail. I'd like to replace the whole line with a rubber hose, clamp at the tank, barbed fitting and a clamp at the pump. What kind of male threaded end would be needed on the barb fitting? All I can offer is that it has parallel threads, no idea what the ferrule looking sealing design is called.
 

Had a thought on the thermostart line; lawnmower gas hose. I'll take the barb fitting to a small engine repair shop and check it out.
 

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