A question for the group -
I'm making measurements for a firewall-forward fuel line order from TS Flightlines, for an IO-360-M1B on my RV-7. The most practical way to run the firewall-to-fuel pump line is to have it go down slightly to clear one of the engine mount cross-braces. Here's a pic of a test fit with a spare piece of 3/8" line from the engine kit..
I plan to have a 45 degree fitting on the firewall end, and a 90 degree fitting on the fuel pump end.
So my question is whether it's bad form to have a low point in a firewall-forward fuel line. I've heard and read advice that says there should always be drains at low points in the fuel system, but there are a lot of places in the RV-7/9 (like the hard lines between the tanks and fuel selectors) where there are low points with no drain.
Any thoughts from the experts?
Dave
I'm making measurements for a firewall-forward fuel line order from TS Flightlines, for an IO-360-M1B on my RV-7. The most practical way to run the firewall-to-fuel pump line is to have it go down slightly to clear one of the engine mount cross-braces. Here's a pic of a test fit with a spare piece of 3/8" line from the engine kit..
I plan to have a 45 degree fitting on the firewall end, and a 90 degree fitting on the fuel pump end.
So my question is whether it's bad form to have a low point in a firewall-forward fuel line. I've heard and read advice that says there should always be drains at low points in the fuel system, but there are a lot of places in the RV-7/9 (like the hard lines between the tanks and fuel selectors) where there are low points with no drain.
Any thoughts from the experts?
Dave