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I'm about ready to drop the engine back in my truck. My plan for priming is to pull the plug off the crank trigger so it doesn't fire and spin it for a while. My question is there a good way to verify pressure or flow?
Ford's procedure involves cranking the enigne in 10 second intervals with the CKP disconnected. With the CKP disconnected, the PCM will not provide fuel injection or spark. Crank until measurable oil pressure is present at the oil pressure switch fitting (this is where you put your gauge). Once you got it, plug it in and let it buck.
The V10 cranks too slow to build pressure like this so we just tell them to crank it for 10 seconds and then let it fire. If you don't want to mess with it I'm sure you will be fine by just cranking it a while.
Your plan = right on
p.s. Your oil switch is a 7-10psi N/O switch. If the oil light goes out while cranking you should have good pressure. Nothing beats a gauge but do what ya gotta do.
Last edited by iamtheshaner; 09-10-2010, 02:55 PM.
put gas pedal to floor (disables injectors) crank over till oil pressure comes up on guage in instrument cluster, stop cranking remove foot from gas pedal and then start engine normally.
Good luck Dan, my suspicion is you'll run through a battery trying to get oil pressure this way. Not that I can offer a better option unless you have a remote oil filter.
I don't suppose you put some oil in the pick up tube while the shortblock was upside down? A wet pick-up tube helps tremendously. That's been the only way I've been able to see oil pressure on a new modular shortblock by cranking, and it took a LONG time! The last motor I just filled the fucker with oil (did the upside down oil fill trick) and let her rip, had oil pressure on a REAL gauge almost instantly.
"I'm getting really tired of the turbo whistle"
-No one ever
I usually pack the oil pump with petroleum jelly that way it is able to pull the oil up the pickup tube quickly when doing the cranking method. Not that it really helps you now though :-\
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