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.
https://www.aircraftspruce.com/catalog/appages/elsolprimer.php?clickkey=5006
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.
https://fueltankparts.com/collectio.../copy-of-5-bolt-sending-unit-to-2-npt-adapter
https://www.aircraftspruce.com/catalog/appages/elsolprimer.php?clickkey=5006
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.
https://fueltankparts.com/collectio.../copy-of-5-bolt-sending-unit-to-2-npt-adapter
