Starting rebuilt engine for the 1st time

[tim]

Originally Posted by 1ViciousGSX

You can prime the engine by spinning it over with the sparkplugs removed and fuel pump fuse pulled until you see oil pressure. Do it in 10-20 second intervals so you don't overheat your starter. Put the plugs and fuse back in and fire it up.

Then drive it like you stole it.

I have heard to do this also but I am curious why you would? How is it any different than just starting it? I realize you wont be firing this way but just idling after the first fire up shouldnt be much load on the bearings.

Not trying to disagree just trying to understand why.