JD 1010 crawler loader with no oil pressure

[HighlanderFarm]

Just traded with a buddy and acquired a 1964 JD 1010 crawler loader. It's been sitting for almost ten years. I managed to get her started, but it has no oil pressure. Idiot light comes on, and the gauge reads zero. I took the gauge line off of the block, and tried it again, nothing squirted out (not running it for more than a few seconds). Shut ti down immediately. Dipstick shows lots of oil, looks healthy. Filter looked okay, not gunked up. I am guessing the oil pump took a dump.
Any suggestions of maybe something I overlooked, or is the pump?

[DukeofDeere]

Time to drop the pan and see what is going on.

Duke

[gus]

[ (not running it for more than a few seconds). Shut ti down immediately. Dipstick shows lots of oil, looks healthy.[/quote]

Sitting that long it might be full of water also. You can't tell by how it looks. Drop the drain plug and see what comes out. If it's water...

I had this on a D-4 once. Running it at all fries the bearings.