do i drain the oil? - Ford Powerstroke Diesel Forum
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Old 07-24-2012, 12:58 PM

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do i drain the oil?

I am replacing the number 8 injector in my 97 psd. I am only replacing this one. Do i need to drain the oil in the oil galley from hpop or can i just pop it out and reinstall with no problems. Thanks

Last edited by atstew42; 07-24-2012 at 12:59 PM. Reason: extra word removed
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Old 07-24-2012, 04:49 PM Fanatic

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There are 2 screws in the head ( hex head screws ), you have to remove them... If not the cylinder will completely fill with oil and then you will hydrolock the engine..

Word of advise remove those screws as soon as the valve cover is off and wait a/b 15 minutes or so before remove injector.. There will still be some oil in the oil galley but normally very minimal will get into cylinder. If some does just turn truck over ( make sure all to pull injector fuse ) to "blow" out the oil in cylinder.
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Old 07-24-2012, 07:54 PM
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If you remove the injector (especially #7 and #8), the fuel and oil in the rails will drain into that cylinder. Suck out what you can (I use a MightyVac) and install the injector. With the glowplug removed, rotate the engine by hand (wrench on crank bolt) a few revolutions. Put the valvecover in place and (with fuse removed) use the starter to spin it over. Should be good after that. Cheers!
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