Go Back   PowerStrokeArmy > Power Strokes > 7.3 Tech

Reply
 
Thread Tools Display Modes
  #1  
Old 10-08-2020, 11:30 AM
Big Bore's Avatar
Big Bore Big Bore is offline
Major
Member's Gallery
 
Join Date: May 2011
Location: 9000ft in the CO Rockies
Posts: 2,350
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.
__________________
E99 with some junk and tuned by C-Fro. Building some more junk to put in it.
11B

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...
  #2  
Old 10-08-2020, 11:48 AM
79jasper's Avatar
79jasper 79jasper is offline
Colonel
Member's Gallery
 
Join Date: Feb 2012
Location: skiatook, Oklahoma
Posts: 2,588
Default

Spin it by hand. (Put a socket and big wrench on the crankshaft pulley bolt)

Sent from my SM-N960U using Tapatalk
__________________
2003 F250 KR SCSB FX4
Depleted, studded, airdog (which isn't currently hooked up), fass regulated return, airaide, 4 inch straight pipe with mbrp muffler(so on to go), glowchit pyro, fuel, boost, and trans temp. (Of course don't work lol) Hercules terra track A/T2 315/70/17.
2013 Honda pilot Touring
http://badges.fuelly.com/images/sig-us/778639.png
http://badges.fuelly.com/images/sig-us/776628.png
  #3  
Old 10-08-2020, 12:23 PM
Big Bore's Avatar
Big Bore Big Bore is offline
Major
Member's Gallery
 
Join Date: May 2011
Location: 9000ft in the CO Rockies
Posts: 2,350
Default

Thanks. Do you happen to know what the possible issues are turning it over with starter?
__________________
E99 with some junk and tuned by C-Fro. Building some more junk to put in it.
11B

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...
  #4  
Old 10-08-2020, 01:15 PM
CJunkie's Avatar
CJunkie CJunkie is offline
Corporal
Member's Gallery
 
Join Date: Dec 2016
Location: 'Murica
Posts: 60
Default

You can, will generally make a bigger mess though. I prefer doing it by hand too.

Sent from my LM-V350 using Tapatalk
__________________
97 F250 SCLB 7.3 4x4, 303k and counting
zf5, 6637, TS chip, dual 4" straight pipes
Currently looking for axles for an 05+ swap.
  #5  
Old 10-08-2020, 02:17 PM
dsberman94's Avatar
dsberman94 dsberman94 is offline
General
Member's Gallery
 
Join Date: Oct 2013
Location: Pennsylvania
Posts: 11,037
Default

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.
__________________
02 F250 7.3 Crew Cab Short Bed Lariat
PHP Hydra, Ge4rhead tunes, Edge insight CTS monitor
Mild Trans Build, Dual disc TC
GTP38R, T500, PIS 175/80s in the engine. waiting to see rods one day

Turned 200k miles 1/18/2015
  #6  
Old 10-08-2020, 02:51 PM
Arisley's Avatar
Arisley Arisley is offline
Mod Squad
Member's Gallery
 
Join Date: May 2011
Location: Arlington, Texas
Posts: 9,281
Default

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.
__________________
E99 ECLB Dually, 2010 bed, 2005 headlights, smoked clearance lights, 2001 cup holder.
365,XXX miles. Pure stock, sorta.
SDRCM #478
PSA Conspirator # 22
  #7  
Old 10-08-2020, 08:59 PM
Big Bore's Avatar
Big Bore Big Bore is offline
Major
Member's Gallery
 
Join Date: May 2011
Location: 9000ft in the CO Rockies
Posts: 2,350
Default

thanks guys for all the info.
__________________
E99 with some junk and tuned by C-Fro. Building some more junk to put in it.
11B

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...
  #8  
Old 10-09-2020, 05:21 AM
Strokersace's Avatar
Strokersace Strokersace is offline
Colonel
Member's Gallery
 
Join Date: May 2011
Location: Towanda, KS
Posts: 4,627
Default

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.
__________________
I'm sweatin' like a wh*re in church here!
  #9  
Old 10-09-2020, 05:45 AM
79jasper's Avatar
79jasper 79jasper is offline
Colonel
Member's Gallery
 
Join Date: Feb 2012
Location: skiatook, Oklahoma
Posts: 2,588
Default

I've done it from the starter on the few I've done. Kept being told "it was wrong."

Sent from my SM-N960U using Tapatalk
__________________
2003 F250 KR SCSB FX4
Depleted, studded, airdog (which isn't currently hooked up), fass regulated return, airaide, 4 inch straight pipe with mbrp muffler(so on to go), glowchit pyro, fuel, boost, and trans temp. (Of course don't work lol) Hercules terra track A/T2 315/70/17.
2013 Honda pilot Touring
http://badges.fuelly.com/images/sig-us/778639.png
http://badges.fuelly.com/images/sig-us/776628.png
  #10  
Old 10-09-2020, 01:50 PM
Lt.Dan's Avatar
Lt.Dan Lt.Dan is offline
Sergeant
Member's Gallery
 
Join Date: Dec 2015
Location: Visalia, CA
Posts: 381
Default

I too have done it with the starter, tiny bumps, nothing big. I did remove a couple bent pushrods a couple days after... i wonder if that was why.
__________________
1996 Cali F350 SRW CCFB, 7.3/E4OD, 2wd SAS w/ 392,000 miles, rebuilt at 352,250.
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 10:09 AM.

 

Powered by vBulletin®
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

Designed by Military Ltd