Can I preassurize the oil sytem.

Years ago when I worked in the shop at a local auto parts store, we would pressure lube all engines that we rebuilt before sending them out.

We did this with a (then) commercially available tool made just for this purpose. It had a small tank, about one gallon that was about half full of 30W non detergent oil. The tank had a small hose connected to the bottom for connecting to the oil galley on the engine and a pressure regulator on top for connecting to shop air. after hooking it up we would adjust the regulator to about 20-30 psi and pump oil in until it began to come out of the rocker arms on OHV engines. We would manually turn the engine over about 3 or 4 turns while doing this.

I haven't seen one of those tools for years.

Dean

Put some engine oil in the sprayer, and pump 'er up.

I have posted this here before. It does work well, and it's CHEAP!

Years ago somebody made an oil accumulator device that attached to the oil pressure guage port on a V8 with a solenoid valve. When you turned the key to the acc position it released the solenoid valve and pre-oiled the engine. The system would recharge gradually while the engine was running. They claimed to eliminate all the wear and tear that occurs at start-up, but the system was always too expensive and complicated for me to get a warm fuzzy about.

Easiest thing to do would be to just pull the plugs and spin the engine over without any compression load. That way the only thing you have to wprry about is how long you spin the starter without a cool-down.

"N" Fords have a bypass filtration system. There will be no "rotten junk " from the filter backflowing into the oiling system if pressurized by an external source.