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Old 04-14-2019, 05:59 PM   #1
Skoolie
 
Join Date: May 2018
Location: the Missouri Ozarks
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Year: 1997
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Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Help starting dt466e

Started and ran a little bit two weeks ago but doesnt want to start today. Have tried several times. A couple it seems to be almost running like 6 or 8 revs then dies. Thoughts?
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Old 04-14-2019, 06:49 PM   #2
Skoolie
 
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Year: 2005
Chassis: School bus
Engine: Cummins
Do you have the ability to read the icp pressure?
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Old 04-14-2019, 06:57 PM   #3
Skoolie
 
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Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Maybe. What is that? How do I do it?
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Old 04-14-2019, 06:58 PM   #4
Skoolie
 
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Year: 1997
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Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Link to video

https://youtu.be/wkhGWePlIzw
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Old 04-14-2019, 07:09 PM   #5
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The cheapest way I know of is with a scam gauge d it's the ignition control pressure if it's not getting at least 500 psi at cranking speed it won't start
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Old 04-15-2019, 09:25 AM   #6
Skoolie
 
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Location: the Missouri Ozarks
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Year: 1997
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Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Is this lack of pressure something that would be common even though it started a couple of weeks earlier?
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Old 04-15-2019, 09:53 AM   #7
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It's the most common with power stroke and until you can rule it out you probably won't be able to diagnose it any further
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Old 04-15-2019, 10:14 AM   #8
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Here read this
Attached Files
File Type: pdf Ford 7.3L IDM Box Insert.pdf (678.1 KB, 23 views)
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Old 04-15-2019, 10:22 AM   #9
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Read this it should get you startedford-7.3-94-03-diagnostic.pdf
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Old 04-15-2019, 01:37 PM   #10
Skoolie
 
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Year: 1999
Chassis: Amtran / International
Engine: DT466E-Md3060
Quote:
Originally Posted by Doe69936 View Post
Read this it should get you startedAttachment 31898
I have started a "diagnostic" folder for which I plan to keep in my bus for times when I have engine problems and need immediate help.

So if I break down on the road, I get to go to my "Diagnostic" library !!!


TO Doe69936,
Thanks so much for that PDF , lots of great info in it!
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Old 04-15-2019, 01:43 PM   #11
Skoolie
 
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Year: 1999
Chassis: Amtran / International
Engine: DT466E-Md3060
Quote:
Originally Posted by MambaJack View Post
Started and ran a little bit two weeks ago but doesnt want to start today. Have tried several times. A couple it seems to be almost running like 6 or 8 revs then dies. Thoughts?
Here a really good video that shows how to perform a simple check to see if your injector O-rings are leaking by injecting low air pressure into the rail.

https://youtu.be/wkhGWePlIzw
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Old 04-15-2019, 02:22 PM   #12
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You will want to charge your batteries. I noticed that the volt meter showed less than 12 volts the whole time.
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Old 04-15-2019, 02:31 PM   #13
Skoolie
 
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Location: the Missouri Ozarks
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Year: 1997
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Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Are there a lot of similarities between this engine and the dt466e i guwaa?
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Old 04-15-2019, 02:42 PM   #14
Skoolie
 
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Chassis: Amtran / International
Engine: DT466E-Md3060
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Originally Posted by MambaJack View Post
Are there a lot of similarities between this engine and the dt466e i guwaa?
I am not a mechanic, professional one that is, but from my understanding the HEUI system which was developed by cat and licensed to International...the theory of operation is the same.

You need high pressure oil to fire the injectors.
So if you have thinned out oil, an internal oil leak (bad O-rings), these conditions would create a scenario that while you are cranking you just can't build up enough oil pressure to fire the injectors.

I was watching some you tube videos on this and saw one engine that would fire up when cold, run all day just fine, but when you shut it off and went for a restart, it would not start.

In that video you could clearly see that the "COLD" start the engine cranked a long time before it started.
On this particular video it was two things causing the no start.

One was a blown o-ring on the injector and the other was the turbo vgt was stuck, would not cycle thus complicating the no start scenario.

Hope this was helpful...
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Old 04-15-2019, 05:54 PM   #15
Skoolie
 
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I've got more files if you need some I've done the same thing collecting information also I've worked on quite a few 7.3 motors and had probably most of the oil pressure related problems there is to have and I assure you without some form of scan gauge that can read icp pressure your in deep doodoo on no start scenarios but with that bit of information I could probably walk you through figuring it out
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Old 04-15-2019, 06:07 PM   #16
Skoolie
 
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Originally Posted by MambaJack View Post
Are there a lot of similarities between this engine and the dt466e i guwaa?
Same ignition system as in all power stroke 7.3 or 6.0 motors in buses or trucks
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Old 04-16-2019, 09:19 AM   #17
Skoolie
 
Join Date: May 2018
Location: the Missouri Ozarks
Posts: 238
Year: 1997
Coachwork: BlueBird
Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
I saw that figured maybe it was just wrong, I wonder if that is what is causing the actual issue
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Old 04-16-2019, 09:20 AM   #18
Skoolie
 
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Location: the Missouri Ozarks
Posts: 238
Year: 1997
Coachwork: BlueBird
Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
In the scope of the cost building my skoolie, this isn't tall that expensive. Is the Scan Gauge D the best option, or are there others out there that are money better spent?
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Old 04-16-2019, 12:53 PM   #19
Skoolie
 
Join Date: May 2018
Location: the Missouri Ozarks
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Year: 1997
Coachwork: BlueBird
Chassis: International 3800
Engine: 466e
Rated Cap: its Yuge
Went ahead and ordered one of these, thanks
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Old 04-16-2019, 01:43 PM   #20
Skoolie
 
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Engine: Cummins
Its the cheapest that gets the job done as for the voltage you need to be getting a minimum of I believe it's 100 rpms at starting off the top of my head
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