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1994.5 - 1997 7.3L Power Stroke Diesel  

Injector 0 ring replacement process

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Old Mar 21, 2022 | 09:50 PM
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Injector 0 ring replacement process

Is there a bolt or two I need to loose to allow air in to prevent oil gathering in the cylinder before I pull the injector? I saw one YouTube where the guy was giving the warning, but his truck looks newer and mine doesn't have the mentioned bolts in his.
 
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Old Mar 22, 2022 | 09:07 AM
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There is no way that I know of to avoid getting oil in the cylinders. You'll have to vac them out and/or turn the motor over by hand to get most of it out then spin the motor with the starter.
 
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Old Mar 22, 2022 | 11:02 AM
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No 7 and 8 have small plugs that drain the HPOP rails. Start there.

As noted by Glenn, you will still have oil down into cylinders. Pull the glow plugs on all holes to zip back up via the starter and to reprime the system for a far quicker restart as there is no fighting compression.
 
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Old Mar 22, 2022 | 11:47 AM
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rear plugs on heads are a pain to get off and you need a new orings or upgrade to new style plug

remove VCH
remove glow plugs
remove injector sheilds, remove injectors with pry bar and re ring
insert injectors and tourque
turn over by hand 4 revolutions with wrench on crank
crank over with key for 30 sec with VC in place with one bolt (splash sheild)
wait 5 min and crank again for 30 sec and repeat 6 times to prime the injectors (engine spins much faster to prime them with GPs out)
install GPs, VCH and fire it up and look for spurts under injectors, dont rev it or it makes a mess
 
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Old Mar 22, 2022 | 01:38 PM
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Originally Posted by knottyrope
rear plugs on heads are a pain to get off and you need a new orings or upgrade to new style plug

remove VCH
remove glow plugs
remove injector sheilds, remove injectors with pry bar and re ring
insert injectors and tourque
turn over by hand 4 revolutions with wrench on crank
crank over with key for 30 sec with VC in place with one bolt (splash sheild)
wait 5 min and crank again for 30 sec and repeat 6 times to prime the injectors (engine spins much faster to prime them with GPs out)
install GPs, VCH and fire it up and look for spurts under injectors, dont rev it or it makes a mess

Where are the 7&8 bolts for the HPOP? What's a vch and where do I put the wrench on the crank please email me Ammontheplaneman@gmail.com or text I'll be happy to compensate!
 

Last edited by Hammr412; Mar 22, 2022 at 01:44 PM.
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Old Mar 22, 2022 | 01:40 PM
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Originally Posted by knottyrope
rear plugs on heads are a pain to get off and you need a new orings or upgrade to new style plug

remove VCH
remove glow plugs
remove injector sheilds, remove injectors with pry bar and re ring
insert injectors and tourque
turn over by hand 4 revolutions with wrench on crank
crank over with key for 30 sec with VC in place with one bolt (splash sheild)
wait 5 min and crank again for 30 sec and repeat 6 times to prime the injectors (engine spins much faster to prime them with GPs out)
install GPs, VCH and fire it up and look for spurts under injectors, dont rev it or it makes a mess
Can you text or email me 4359944302 or Ammontheplaneman@gmail.com I'm not worthy here to direct message
 
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Old Mar 23, 2022 | 12:10 PM
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Two small allen head fasteners on the heads under the valve covers.
 
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