Riley Collins wrote: > I am planning on a similar primer arrangement for my Lycoming, and have > procured a 12v n.c. solenoid. I was planning to take pressurized fuel from the > aux. pump (facet) but am concerned that it will not supply enough pressure (rated > 3-5 psi) to atomize the fuel and feed equal volumes of fuel to all 4 intake > ports. Should I add a 2nd (higher pressure) pump wired to run when the > solenoid is energized, just for the primer. Guess I worry too much about fuel in the > cockpit area. Any ideas or suggestions would be appreciated.
I haven't done a test, but that orifice is so small I'll bet that stream will go a long way before it breaks up, and when it hits something solid, it's going to spray all over the place. I'd think that 3-5 psi would be plenty. For starting purposes, you could probably pour raw fuel in the intake and it'd still start, but that's not optimal. Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford
