rickmellor
Well Known Member
I'm planning to install a fuel injected Lycoming in my 7 and am beginning to think about the fuel system. I haven't closed the QB fuel tanks yet but that time is fast approaching.
I've seen some discussion around fuel /vapor return lines to the tanks. It looks like there are two options: 1) dump this stuff overboard (not really appealing at all) or 2) return it to the tanks.
I know that the Egg Subie guys use a 6 port Andair selector to ensure that the fuel return goes to the tank that the fuel is coming out of to prevent over-filling the tanks. Their needs are slightly different than ours because of the fuel rails, etc., but it still seems like a good practice in any event. Is this something that folks have done for the FI Lycomings as well? The Egg installation is pretty well documented ... is it reasonable to adapt this installation to the Lycoming?
If anyone has links to information on this I'd appreciate it. I need to read up on the high pressure pumps, return lines, etc. I'd also appreciate some insight from those of you who have already braved these waters. I've seen some of the previous discussion on this topic, but I'm getting stuck on the "how do I know that I even need to do this?" question.
Thanks.
-Rick
I've seen some discussion around fuel /vapor return lines to the tanks. It looks like there are two options: 1) dump this stuff overboard (not really appealing at all) or 2) return it to the tanks.
I know that the Egg Subie guys use a 6 port Andair selector to ensure that the fuel return goes to the tank that the fuel is coming out of to prevent over-filling the tanks. Their needs are slightly different than ours because of the fuel rails, etc., but it still seems like a good practice in any event. Is this something that folks have done for the FI Lycomings as well? The Egg installation is pretty well documented ... is it reasonable to adapt this installation to the Lycoming?
If anyone has links to information on this I'd appreciate it. I need to read up on the high pressure pumps, return lines, etc. I'd also appreciate some insight from those of you who have already braved these waters. I've seen some of the previous discussion on this topic, but I'm getting stuck on the "how do I know that I even need to do this?" question.
Thanks.
-Rick