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Purging vapour from fuel lines in FI engines
Doug
Topic Author
Doug created the topic: Purging vapour from fuel lines in FI engines
I noticed the sample test question (in the book) regarding purging the fuel vapour from FI engine fuel lines.
I understand now after some googling that in some engines or perhaps I should say aircraft, that when the mixture is set for idle cutoff this opens a valve in the mixture spider and fuel is returned to the tank via a return valve.
Is this generally true of all engine installations or is it typical of continental engines only?
From what I have seen, mostly Lycoming powered aircraft none have had this purge feature.
Perhaps a few words in the text about this would be useful, if not for exam prep just for general information.
bobtait replied the topic: Purging vapour from fuel lines in FI engines
Doug
Sorry about the long delay in replying to your post, but I wanted to check with an engineer mate because I wasn't sure of the answer myself. I still haven't heard back from him, but as soon as I do, I'll post a reply for the benefit of other students. Congratulations on your pass!!!
