What is the best method of pre-lubing the 4.6 on new rebuild or after it's been down for awhile?

 

Here's how I do it:

Go to Wallmart and get a hand pump type garden pesticide sprayer. Fill the sprayer gug with oil, about four quarts, don't pour oil in the motor, remove the tip on the sprayer hose and adapt it with pipe fittings to screw into the hole just above the oil filter where the oil pressure sending unit for the oil pressure gauge goes, now pump the oil into the engine with the hand pump, by the time you pump all 4 quarts in you will have primed the whole system and can pour quart 5 in the valve cover.

 

on a rebuild i always use assembly lube, and then when the engine is installed i disable the fuel injectors by unpluging them, and prime the engine by cranking 15 sec at a time 4 times pausing in between to let the starter cool. never had any problems.

 

pre-lube on rebuild, then pull the fuse for the ignition system, pull all the wires on the injectors, and crank it. it will flush oil throughout the engine and lube everything up before it actually starts. never had a problem ddoing it that way either.