I do not believe the odor of mogas that has always been presenct in my Europa
emanates
---From any of the connections of the hose to connector hardware. Rather
some volatile components of the fuel seem to permeate through the hose itself.
When I replaced the factory supplied Gates R7 spec hoses this year with Gates
R9 hose, the smell of fuel was quite a bit reduced. R9 hose is fuel injection
rated hose with a specified lower permeance to fuel (also, longer working life).
I used bare hose aft of the tank selector switch, and stainless braided forward
of the switch and throughout the engine compartment.
Ira
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Ira N224XS
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