Oil Priming on a 340

Like Moper said, take a big flat blade screwdriver and put it into the slot of the drive gear and turn it. It will rotate up and out of the cam gear. Just let it set there and this is where I use my telescoping round magnet (Harbor Freight) and just drop it down onto the gear and pull it up and out. Simple pimple! lol! Then I just use a 5/16 piece of hex shaft stock I got at Lowes, put it on the end of a drill and run it down into the oil pump until it meshes with the hex in the pump. Then you're ready to prime with the drill. I made sure my hex shaft was long enough to come up out of the block far enough to get the drill on it and not hit anything.