I pulled the plane outside, tied it to a pole & cranked it over. No oil pressure. Pulled the gauge line and filled it. Nothing. Filled the line to the filter & the relief valve on the engine. According to Franklin owners online, that line goes to the pump & the pick up floats on the oil. Doesn’t make sense to me but ok. Still no oil pumping. I did read to prop it backwards while you have a oiler line hooked to the relief. I didn’t do that. Maybe it will work turning the oil pump backwards to get oil down the pick up tube. Frustrating.