My 91 isuzu pickup had some sort of egr/crankcase pump on it. I'd think most cars from that time frame have something similar. Get one of those, make a bracket, then connect your 20volt milwaukee drill to it and there you have it. You just gotta figure out how to mount the drill and secure the battery. Should be really cheap and efficient use of an old egr pump from whatever old car you can find and some left over parts from your cordless drill.

Keep us posted on the results.

Actually not that far off one diea. Question is switching it? Reach around engine to set trigger kind of out of question. Sure with siome digging can take wires oiff trigger and run to a switch.

Actually looking at proably need some kind of gear drive which have built before and damn lot of work there. Od electric motor and belt Kinf od like shat have seen udea to drive oem style water pump.

Have set of Harley cam gears that are 2:1 so a 2000 rpm drive spinning pump at 4000 same as engine at 8000. Still looking at 12v motors.