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cranks ok , and fast?
after checking all fuses. (the FSM shows correct fuse)
International Harvester IDI (from Indirect Injection) engine is a 4-stroke 8-cylinder Diesel engine used in International Harvester trucks,
like all diesels check fuel filters first. (service)
then make sure glow plugs work. (fsm covers this)
then scan it EFI for DTC errors. got errors?
direct injection uses EFI.
IF DIY, you need the book, I promise.....
its not simple like old diesels were.
It's that huge canister underneath the engine slightly offset to the driver's side. It holds about 1 qt of oil. Pre-fill the new filter before putting it on.
check if the power to the fuel pump gets constant power when switched on it may have a electrical problem you may need to get a auto elect tech to help you
simple : obtain replacement pump from parts provider (no used stuff)
Now help me out here: thats the year they were bolted to the pass side front of engine
and not inside the tank right? (better go look to see for sure)
using a tube wrench unscrew the fuel lines (i use large wire nuts to temp block off fuel leakage)
with a 12 mm wrench undo the two side bolts holding the pump to block
wiggle pump it should come straight off
clean mounting place on block with solvent let dry
silicone back (or use gasket that comes with pump ) of pump
apply pump to block (depending on where crank stopped you may have some tension on arm you will have to overcome to get flange to meet block )
use locktite (blue)or simmiliar thread lock on bolts retighten firmly but not hang up the dog tight
use light grease or vasolene on tube connections don't try to tighten dry
Now the fun part your diesel now has air in the fuel system
there are two ways to remove this ( hard and harder)
your choice here are both methods
loosten the fuel supply line for #8 injector ( I did not say remove) 1 full turn ought to be enough
crank engine 30 seconds only
wait 5 minutes for starter to cool down
crank engine 30 sec again
did it start but runs rough while it's still running tighten #8 injector (caution fuel under high pressure)
engine smooth out good your lucky
engine did not start yet
wait 5 minutes
crank engine 30 sec again
start yet
if so tighten #8 injector up
Now here's something I've done to my diesel to make this much less a hasstle
trace fuel line as it comes up from pump
obtain a small low pressure electric fuel pump and a two short pieces of fuel line
and a few clamps
use tube cutter and cut fuel line just before it bends to go in filter
deburr edges
slide tube and clamps over pipe (both sides)
insert pump observe flow arrrow towards filter
the wires of pump can be stretched over to #1 battery terminals
now any time you change a filter or open your fuel system for any reason
all you need do is connect pump to battery
open sharader valve on top of filter for a few min
and start truck as normal
then disconnect wires and stow away for another day
Check to see if you are sucking air on the inlet side of charge pump, Disconect feed side of charge pump, fabricate a hose to place in a clear container to check for good clear flow.Hope this helps.
If the truck has good batteries and cranks well.--- There is a schrader valve on top of the fuel filter housing, (it looks like a tire stem valve) depress this valve while someone cranks the engine until you have fuel flowing out of this air bleeder valve. From that point, crank until it starts. Do not crank more than 30 Seconds, then let the starter motor rest. After you have this air out it usually startes in one or two tries.
When was the fuel filter last replaced? What precedded this no start condition? Was it running fine?
Agin, this truck must crank quickly in order to start
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