I was misbeguiled by Van's. Before I started my -4 fuel tank I questioned a discrepency in the drawings. The wing layout showed the inboard interior tank rib as a flange-in, T-404R while the tank drawing showed it a flange-out, T-404L. Van's said to go by the tank drawing. No big deal, just swap ribs. After drilling, I grew worried when I dry-fit the capacitance plates before sealing the tank (pro-seal virgin and all) because it's "inside" the flanges and rivet shop heads, but I still had the requisite clearance.
Post sealing, I go to install the capacitance plates and the inboard plate interferes on the shop head sealant dollups. I see now that it would have given better clearance to the plate had I installed the rib flange-in .
So questions: can I trim the plate without adversley affecting fuel sensing? Do the plates require equal or identical surface area? (You're supposed to trim the bottom corners for stiffener clearance on the outboard plate so it was going to be different from the inboard, anyway)
Can the plate be mounted on the other side of the rib, in the first fuel bay?
Post sealing, I go to install the capacitance plates and the inboard plate interferes on the shop head sealant dollups. I see now that it would have given better clearance to the plate had I installed the rib flange-in .
So questions: can I trim the plate without adversley affecting fuel sensing? Do the plates require equal or identical surface area? (You're supposed to trim the bottom corners for stiffener clearance on the outboard plate so it was going to be different from the inboard, anyway)
Can the plate be mounted on the other side of the rib, in the first fuel bay?