In regards to running a fuel line- personally, I would never use a compression fitting with stainless steel - flare only. In fact, I wouldn't use a compression fitting anywhere in a fuel line setup.... compression fittings aren't rated for fuel. Fuel leaks create fires.
You will see every kind of setup imaginable, including installing those really cool clear glass fuel bowl filters right above the exhaust manifold. Those always make me cringe.
Maybe I'm paranoid, but you'd never, ever see those things in a modern aircraft engine compartment (and for good reason).
I would use compression fittings for oil & vacuum, however.
Last edited by Norcal Dave; 02/02/2017 4:50 PM.
