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Posted for "Wendell & Jean Durr" <legacy147@cableone.net>:
There is a small diameter hole from the rear of my IO550, draining through a 1/4 inch tube through the nose gear door rail. A light oil mist is exhausted and gums up the belly (the plane's, not mine). My A&P says the tube vents fuel injection system overload, during priming, and washes some oil off the engine innards. I suggested routing the hose into the crankcase vent hose, thence through the oil/air separator. My A&P voiced disapproval of introducing the fuel (vapors only, I suspect) into the oil by return to the engine.
I'd appreciate the group's guidance. Wendell Durr
[ you want a snuffle valve... its a small reservoir with a ball barring
that will flow when inflight but will hold some priming gas on the
ground... photo attached. -Rob ]
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