Priming isn't really the right word here, at least not in the traditional sense. A gear pump that is pumping oil doesn't need priming to get it to start working; though it does need priming to get it start working quickly. The idea on a new rebuild is to get oil into all the galleys, passages, pump, cooler, etc without actually spinning the engine and creating wear. At the very least, pressurize the system in as few revolutions as possible. This means priming as much of the engine as possible. Even though assembly lubricant is used during the rebuild, there is no substitute for getting oil as quickly as possible to everything.

Jerry Lemond told me about, and said he favors, the "paint tank" type of pressurization(can of oil inside a pressurized container, or pressurize a container of oil) that forces oil into the engine like forced medication through an IV tube. This seems like a great idea though I have the engine together and in the truck a good feed point is not easy to get to.

Just thought maybe some folks on the forum have a nice trick for "priming" the engine I haven't heard of that they could share.