LRA Controller sorcery. (14 Viewers)

[grinchy]

Wait wait wait. What does the LRA do when the main is ‘overfilled’? Where does the fuel go or where is it supposed to go?

 

[Artie]

it’s interesting that some folks report they either can’t fill their LRA to capacity or can’t get all of the gas out of it and others don’t have issues. I have a 24 gal LRA and can get all but the last 1/2 gal out. I usually hit the transfer button once after it auto shuts off. I think it runs one minute and shuts off again.

I’ve measured the flow rate and mine (upgraded pump) flows at 1 gpm. On road trips I let the main tank run down to 1/4 and then start the transfer and a timer set for 12 minutes. I shut the pump off when they timer beeps. There is lag in the fuel gauge but after a few minutes more, my gauge will read 3/4 and I know I have 12 gal in the LRA.

Autofill sounds cool but one of my fears is inadvertently overfilling the main tank and I’d be worried about a controller failure or the lag in the gauge reading affecting the reliability. I like my watch telling me to shut the pump off and knowing I have 1/4 tank head room for any error.

This is pretty much my procedure, 15 min and shut it off. I should set a timer because I have forgotten a couple times but nothing has ever come of it, I’ve maybe gone 20 minutes.