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I know about that. I'll have to check it again but I think it is clear. I ran the pump on the old engine with a clear line on it and it did flow fuel through it freely.

Well by the TM it is wired correctly. I highly doubt that the wiring harness was manufactured incorrectly. how ever you never know. but even if it were reversed it would have to be some other currently non-existent electrical problem that isn’t there. I trouble shot the advance and high idle...

That did occure to me and I verified that I dont have it reversed. In fact you cannot fit the green connectors on the fuel cut off solinoid contact since it is too large

I ended up getting the one from Boyce. It’s a CUCV pull out. It’s running great now. Turns out the high idle/ timing advance temp switch was working properly which for some reason is why my injection pump wouldn’t work when it got hot an cut voltage to the solenoids. I don’t understand it but...

Well here’s some new info. So I bypassed the sensor today and the truck ran great with no problems until I turned it off my self about 15 minutes later. In that time the thermostat even opened. So it seems like I have made progress. The truck started up with no problems on the first time, which...

except that the engine is still cold enough for the glow plugs to come on and there is still no voltage at the timing advance or fast idle connectors when the engine dies even though the fuel shut off solinoid is still engergized.

the lift pump is a good 18mo old one off my blown motor. Is the fuel check valve the one with the glass bead in it on the injection pump? If so its clear.

Sooo. I have the newer engine in my truck now. I have gotten it to fire up (after I had to swap the lift pump out) and it will run for 3-5 minutes and then die on me and I cannot get it restarted until I re purge the system. I'll re purge the fuel filter first even though when I open up the...