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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.
Doug
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!!!
Bob