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Anyone use crank to prime prior to starting engine after changing the oil?

RonM_TX

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I guess I'm missing something here. What is the point of doing this? It's not like everything in the engine goes dry instantly when you shut it off and turning the engine over with the starter for however long you're doing it is adding wear to the starter and circulating oil in the same fashion that starting the engine does.

If there is any benefit, I'm guessing its so minimal over the life of an engine that its barely worth discussing.

I can see doing this on a new engine, but one that's just been run and had the oil changed would still have residual lubricant in the top end.
Cranking without start pressurizes the oiling system. This forces oil into the cam phasers so they don't rattle on start up. Not sure if this extends the life of the phasers or not. My Escape rattles on start up and has for the last 200,000 miles. I rarely do a long crack start, only when I'm annoyed by the clatter.
No cam phasers issues since new other than the sound. Guess it is personal preference.
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Stumpm2

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That was an attempt to mask an issue, not to fix it.
Agreed, but is also cannot hurt and was probably an attempt to get most vehicles past warranty coverage without issues. If I could find the delay ignition in Forscan I change it on my Raptor.
 

jeffers

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I guess I'm missing something here. What is the point of doing this? It's not like everything in the engine goes dry instantly when you shut it off and turning the engine over with the starter for however long you're doing it is adding wear to the starter and circulating oil in the same fashion that starting the engine does.

If there is any benefit, I'm guessing its so minimal over the life of an engine that its barely worth discussing.

I can see doing this on a new engine, but one that's just been run and had the oil changed would still have residual lubricant in the top end.
I've heard of some people installing an electric oil pump to start pumping oil before the starter even engages. Thats pretty crazy.
 

RonM_TX

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I've heard of some people installing an electric oil pump to start pumping oil before the starter even engages. Thats pretty crazy.
There is a system that uses engine vacuum to pressurize a canister full engine oil which releases the oil through out the engine on start up. Simple system
 

ShadeTree

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The feature is not Crank to Prime, it is Flood mode. It was designed to clear fuel from a flooded engine, much like is done on a carbureted engine. I don't see how it could be a benefit to oiled parts, since those parts are all turning, whether it starts or not, and it takes just as much turning to get oil pressure as it does when actually started.
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