So i have about 75 hours on 2AP since the rebuild. During the rebuild i plumbed the main tank and the inverted sump but left the top tank capped off. My thought was less maintenance and i would ever be going that far anyways. Now i am wishing for the extra fuel during cross countries. During the conditional inspection this winter i plan on plumbing the top tank in per the plans (attached). One idea i am kicking around is replacing the 104-HD Valve with an electric solenoid. This is appealing due to the ease of install and i have an available switch on the panel prewired and ready to go. I went ahead and purchased an automotive 1/4" NPT 1/4" Orifice solenoid but after receiving it I realize how heavy it is and I can't stand to install that in an airplane. Aircraft spruce does sell a 1/8" orifice Parker unit designed for a primer application. I am wondering if this size orifice would allow adequate flow into the main tank.
www.aircraftspruce.com
I am also replacing the spiral action gauge with a MGL Capacitive sender wired to the EMS. Here's the adaptor i will be using if anyone is interested.
fueltankparts.com
Electric Solenoid Engine Primer Valve | Aircraft Spruce
Electric Solenoid Engine Primer Valve These new electric solenoids are recommended by Co-Z Development Corp. as ideal electric engine primers for homebuilt aircraft. These normally closed 2-way valves are direct acting and have only two mov
I am also replacing the spiral action gauge with a MGL Capacitive sender wired to the EMS. Here's the adaptor i will be using if anyone is interested.
5 Bolt Sending Unit to 1.50" NPT Adapter
Material = CNC Machined 6061 T6 Flange OD = 2.975" ID = 1.500" Tapped holes = x5 10-32 .430 Deep on a 2.120" BCL Male thread = 1.50" NPT This Adapter allows you to adapt certain 5 bolt sending units to a 1.50" NPT fitting. This is Especially useful when it is not possible to add another port...
fueltankparts.com
