When you can get your hands to it, first thing I would do is pull the dipstick and make sure oil is in it. Might offend someone, but start with the basics.

Next I would look into how they are driving it with the drill. It is not a Ford, so a hex drive does not work. Chevy uses a slot in the pump shaft, then a flat in the distributor to drive it. I use an old distributor with the drive gear removed for priming.

If that checks out- if oil is being drawn in to the pump, there will be some load on the drill. If there is no noticable load, then the problem is probably at the pump or south of it with aomething incorrect with the pickup.

If the drill is loading down, I would pull a valve cover and see if any oil is making it up into the head.

If oil seems to be making it up to the head, I would turn my attention to the oil pressure guage. Make sure it is hooked up, and in the correct spot. If unsure of the guage, go to an auto parts store and buy a cheapy. I keep an extra one in my tool box.

Should be a good start to diagnosis

[This message has been edited by LitebulbwithaFiero (edited 07-22-2017).]