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Old 10-08-2020, 12:30 PM
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Default Clearing oil from cylinders after injector R&R

Hey guys, been awhile since I posted here. Finally doing some work on the old 7.3 and new orings and gp's are on the menu. Was refreshing my knowledge and reading some articles, ran across a pdf from Swamps that said blowing the oil out of the gp holes was a no-no and could cause engine damage. I swear I learned that trick from Dave or Jonathon way back on TDS when i bought a set of Babies. I recall the first time I did it was replacing a bad injector from swamps and Tom S was standing there when the vc I didnt put any bolts in blew off and covered everything in oil. Lesson learned, two bolts in vc before cranking, its a lot of pressure. Anyway, Has something changed or is that a cya situation? i've already reinstalled the injectors, removed gp's and about to install vc's and turn it over. Thanks a bunch for any information.
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... I don't want to be left assuming you're a dipchit. I want you to prove it to me...
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Old 10-08-2020, 12:48 PM
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Spin it by hand. (Put a socket and big wrench on the crankshaft pulley bolt)

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Old 10-08-2020, 01:23 PM
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Thanks. Do you happen to know what the possible issues are turning it over with starter?
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... I don't want to be left assuming you're a dipchit. I want you to prove it to me...
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Old 10-08-2020, 02:15 PM
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You can, will generally make a bigger mess though. I prefer doing it by hand too.

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Old 10-08-2020, 03:17 PM
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Go by hand to get the bulk out then you can turn over by starter. If you try with the starter and thereís more in the cylinder than can come out at a given rate you could mess up the valve train.
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Old 10-08-2020, 03:51 PM
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I always go two full revolutions by hand. Then snug the valve covers and bumb the starter, don't go steady crank like you are trying to start it.
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Old 10-08-2020, 09:59 PM
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thanks guys for all the info.
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Quote:
Originally Posted by Powerstroked162 View Post
... I don't want to be left assuming you're a dipchit. I want you to prove it to me...
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Old 10-09-2020, 06:21 AM
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Are you guys really serious?!?!? Iíd have expected better knowledge out of you fellow ďexperiencedĒ 7.3 guys. By hand, then use the starter? Mess up the valve train? COME ON!! Work smarter not harder!

Big Bore (sorry man I canít remember your name as itís been YEARS! Frank is it?), do it how youíve always done it!! So long as thereís oil in the bottom of the engine to lube the rotating assembly, you wonít have an issue. There is NO compression in any cylinders, so even though Berman has apparently reverted back to his dipwad days, it wonít cause issues with the vavletrain at all!

Throw a few bolts into each VC, keep the 42 pin connector unplugged so the idm isnít commanding fuel injection, and bump the starter several times. Pull covers, clean up any messes as oil drips off them, reinstall whatís left, and change the oil for good measure since it now has raw fuel in it from the injector swap, then go drive the piss out of it to get the air out of the system!

If Iíve done one 7.3 injector swap this way, Iíve done 30 (maybe more) over the years. Never once have I (and likely hundreds of other people) EVER had a problem only bumping the starter to evacuate the cylinders.
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Old 10-10-2020, 01:06 PM
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Quote:
Originally Posted by Strokersace View Post
Are you guys really serious?!?!? Iíd have expected better knowledge out of you fellow ďexperiencedĒ 7.3 guys. By hand, then use the starter? Mess up the valve train? COME ON!! Work smarter not harder!

Big Bore (sorry man I canít remember your name as itís been YEARS! Frank is it?), do it how youíve always done it!! So long as thereís oil in the bottom of the engine to lube the rotating assembly, you wonít have an issue. There is NO compression in any cylinders, so even though Berman has apparently reverted back to his dipwad days, it wonít cause issues with the vavletrain at all!

Throw a few bolts into each VC, keep the 42 pin connector unplugged so the idm isnít commanding fuel injection, and bump the starter several times. Pull covers, clean up any messes as oil drips off them, reinstall whatís left, and change the oil for good measure since it now has raw fuel in it from the injector swap, then go drive the piss out of it to get the air out of the system!

If Iíve done one 7.3 injector swap this way, Iíve done 30 (maybe more) over the years. Never once have I (and likely hundreds of other people) EVER had a problem only bumping the starter to evacuate the cylinders.
Yea man, it's been a few years, you got it right.

I've done it that way several times with no issues but I'm also aware I might have been lucky lol, and I just can't afford to break things right now due to tight schedule and a long road trip ahead so I guess I'm more nervous about things like this than I used to be. I don't mind taking a little extra time to roll it by hand a few times, cheap insurance.
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E99 with some junk and tuned by C-Fro. Building some more junk to put in it.
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Quote:
Originally Posted by Powerstroked162 View Post
... I don't want to be left assuming you're a dipchit. I want you to prove it to me...
  #10  
Old 10-13-2020, 08:04 PM
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Quote:
Originally Posted by Big Bore View Post
Yea man, it's been a few years, you got it right.



I've done it that way several times with no issues but I'm also aware I might have been lucky lol, and I just can't afford to break things right now due to tight schedule and a long road trip ahead so I guess I'm more nervous about things like this than I used to be. I don't mind taking a little extra time to roll it by hand a few times, cheap insurance.
Better safe than sorry..

Ine of those brake bleeder canisters work great also. Just stick the tube down into it and shake it around a bit so it doesn't just seal to the top of the piston then put vc on and bump starter. Im to broken in my old age to do much Armstrong chit anymore so i find easier ways to do stuff. Might take longer but thats my life now.

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