bought a rebuild 2.3 engine that is for my 2008 ranger I am new to rangers it says to prime oil pump can some one tell how to do that thanks

 

Answered in your other post: https://www.ranger-forums.com/genera...il-pum-151426/

You can pour oil into outlet of pump just prior to assembly but priming the whole system is what you want to do before first startup in any case

 

A TSB From Alldata, I deleted non relevant information from this TSB for easier reading.

ISSUE
Reports of premature engine failure suggest some overhauled, new and/or remanufactured engine oil Systems are not correctly primed prior to initial engine start-up, after being installed in the vehicle.

This may cause oil starvation during initial engine start-up.

ACTION
Prior to starting a new, overhauled or remanufactured engine, the oil pump and oil system should be primed to eliminate the possibility of oil starvation at start-up.


Similar to what RonD suggested yet I suggest also disabling the fuel pump as outlined by Ford to eliminate the chance of fuel getting into the engine while priming the oil pump.

Overhead cam engines, whether overhauled or remanufactured, prior to starting the engine, ensure the engine crankcase is filled to specification with engine oil.

Disable the fuel supply to the fuel injectors (disable inertia fuel shut-off switch) and crank the engine in fifteen (15) second increments, until the oil pump is primed.

An oil pressure gauge can be used to assist in determining when oil pressure is obtained.

NOTE ENSURE THE INERTIA FUEL SHUT-OFF SWITCH IS RE-ENABLED PRIOR TO ATTEMPTING TO START ENGINE.