1994 International with Detroit DT466 Engine Stopped - TheDieselGarage.com
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Old 09-21-2011, 05:56 AM   #1
rrb6699
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1994 International with Detroit DT466 Engine Stopped

I'm looking for 1993,1994 dt466 engine diagram. i have one somewhere, but, lost it. i will post if i find it before someone else does. my injector pump (i believe) went out while the engine was running. when the truck sits, i start it at least once a week to keep battery charged, etc.. anyway, while it was running it slowly stalled out. i tried to hand prime it and it started again, but only ran for about 10 seconds then shut down again. the hand primer does not pressure up now and it may be bad too. I'm hoping that the hand primer pump will also cause the engine to seemingly starve for fuel, otherwise, i'll have to try to rebuild the injector pump (or whatever is broken) myself due to lack of funds. If anyone can at least provide a diagram of locations of fuel system components that would be all i need right now. I'm not sure what the injector pump looks like, but, i can remove it once i know where it is and then check it out. my email is rrb6699@gmail.com. thanks.

Last edited by rrb6699; 09-21-2011 at 05:59 AM. Reason: Add info.
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Old 09-21-2011, 01:02 PM   #2
nevrenufhp
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Welcome.
It's an International, not a Detroit. The pump is on the driver side of the engine, up at the top. What it sounds like, is air getting sucked in. I highly suggest replacing the rubber hoses around the pump & fuel filters, especially the ones between the injector pump & the block. They are prone to leaks and seepage.
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my daily driver:67 F100, 300 4V, cammed, 4 spd.
or, 98 Jetta VR6.
work rigs: 94 IH 4900, DT466(originally 230hp), #0 fuel plate, tighter gov springs, 22* timing
or, 06 IH 7400, DT466E, 300hp


My Low Buck fuel rate site:
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Old 09-21-2011, 08:47 PM   #3
rrb6699
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1994 dt466

well i'm not sure if it is a detroit diesel or a Navistar motor or International but it is a DT466 is all i know. when i was sitting in the cab when the engine stalled out, i coulnt hear what noises it made. just from the cab the engine started losing power and then stopped gradually. I hit the primer pump and was able to start it for about 10 seconds (just enough to move it where i needed it) then it stopped again. i'm workin on this by myself so i will try the hose replacements and "cheap" things to fix first that could have worn out perhaps. i'm still lookin for my diagrams of the vehicle and could use one if i can get one through contacts on the web somehow first.
what else can i try to do on my own to diagnose this?

thanks

Ray
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Old 09-22-2011, 03:01 AM   #4
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Neverenuffhp's word is pretty much gospel. International & not getting fuel. DT-466 I beleive means Diesel Turbo-466, nothing Detroit. To limp by for a while you might check for Diesel in the tank first. Even if he gauge says half a tank, don't trust it. Check with a clean stick or such. Next, work that primer bulb for awhile & its a long while if you accidentally ran it dry, or if it there is a cracked hose letting air in. You'll know when you're done at the bulb, it will be solid to push. Next crank it over and it will start up.

The primer will seem like its broken, doing nothing until what seems like 10 minutes, but probably just a couple, then you'll get a big smile & know its time to fire it up.

Good luck -Scott
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Old 09-22-2011, 05:28 PM   #5
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Hey thanks

i did thank him for the reply. I put 15 gallons of fresh fuel in the tanks and i'm sure last time when i ran it dry it took only 5gallons to start it again. I did push the primer bulb for 10 minutes after it happened and no luck. there is an air leak but with no diagram it is going to be hard to track it down. i dont see anywhere any documentation that actually points to the engine and says each component of the system. it may be in the manual i have misplaced, but, i cannot find it yet (still lookin for it). perhaps i can put an air compressor to the place where i take the primer bulb out and see if i can spot an air leak that way and shorten my time to riding again.
thanks and any ideas of course are appreciated as always.
I attached two pictures of the engine for reference. feel free to look at them and comment.

Ray
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Old 09-23-2011, 12:44 AM   #6
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In pic #1, the red writing, that hiss is the air governor. Nothing wrong with the hiss after shutting down, as long as the air stops leaking out after a second or 2.
Yes, that is the injector pump you're pointing at.

There's a few lines between the block and the injector pump, and the rest is around the fuel filter. Bolted to the injector pump is the lift pump(fuel transfer pump) which is under your arrow and has a banjo bolt at either end. At the top of the fuel filter housing is the air bleeder, make sure it's not loose unless you're pumping the hand primer. Just a hunch, start at the filter, and work your way back to the tank, or from the tank forward. Another thought was the pickup tube in the tank. Those can get rusty and/or break off.
You could also apply 3-5psi to the tank at the filler to speed up the whole process. Fuel will usually seep out of where the air usually leaks in. It wont gush out, so you'll have to hold the air on it for a couple min.

FYI:
It does mean Diesel Turbo and 466 cubic inches, not Dee Troit.
Not to add confusion, but Detroit Diesel did actually buy this series of engines from IH, and called them a Series 40, later a 40E. The Series 40 and 40E usually had the good hp ratings too.
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my daily driver:67 F100, 300 4V, cammed, 4 spd.
or, 98 Jetta VR6.
work rigs: 94 IH 4900, DT466(originally 230hp), #0 fuel plate, tighter gov springs, 22* timing
or, 06 IH 7400, DT466E, 300hp


My Low Buck fuel rate site:
www.freewebs.com/nevrenufhp

Last edited by nevrenufhp; 09-23-2011 at 01:07 AM.
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Old 09-26-2011, 03:06 AM   #7
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Short of a parts book, I think it might be kind of difficult to find a diagram that shows all the fuel system components. Like stated, I think your best bet would be to find the fuel line coming out of the tank and inspect it as best you can toward the engine. You're bound to find something not right.
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