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I'm thinking it would go a little more like this: https://m.youtube.com/watch?v=zrH5Ohm8e-M

Next step is to rip this Allison off and connect the Road Ranger to it with the new clutch, may harvest the flywheel housing from my mil engine, TBD yet, based on motor mount comparison. This one has driver side starter, which may be OK, need to check clearance. Oil pan will need to flip...

I build them from various parts of new ones to fit and work correctly on older applications. PM me for price, they are reasonable.

IT RUNS !!!!! PERFECTLY! Zero leaks, zero smoke, 400hp, ready for its next assignment. Run for your life Simp! Cats are out of the bag. Thanks to all for the help and encouragement.

Get rid of it completely. Go with a modern starter, they crank just as fast hot as cold, and have the relay built right onto it. They also weigh only 29lbs, and are 1/3 smaller.

It was a mis-plumb issue in this case since everything was cut out vs disco'd. Confirmation later this evening, I need a small high pressure banjo ended hose made before she will fire, but the parts guy at the hydraulic hose store is in standby with my order, waiting to deliver it.

That small relay on the modern starter posted by lindsey97 can take a signal direct from the dash start switch. The eliminates the need for any external relays or solenoids (1/2 the PCB box). It can also be simply not used or removed if you want to leave your system as is, or you can even wire...

Got it! Will's the man. He taught me that there should be two filters on the RV, and there was, and that fuel feed to the high pressure pump should be double filtered, and at about 70psi. This was not making sense to me, because I know the lift pump does not generate that kind of pressure...

Just tried again, cracked the line from the common rail pump which feeds the common rail, and no fuel coming out. Hopefully this is just an air bound issue. I will disco the line after the boost pump and see if it will flow when the pump is on. The ECM is mounted to a plate which the diesel...

Well, the engine cranks well and ECM seems to actuate, but so far no fire. It will light off on starting fluid, but not self sustain. The engine has an electric boost pump on it, but it is inline style, and those are never lift capable, just pressure boosters once flooded with liquid. Trucks...

All hooked up, fuel in jug, checked oil level, disconnected drive belt, blocked trans output yolk, connected ignition wire, electric fuel pump ran, hit starter, and a 9v battery had more energy in it than this one did I brought home from work. Hold tight, we'll try again tomorrow. UPDATE>...

Thanks Will. Hold for now, I'm going the other way with it, C housing on L engine. Block p/n change can be anything, I'm hoping bolt pattern is same. I heard dimensionally the block is the same, but stiffeners added for the higher hp. Not sure, we'll see. Trans cooler jump hose done. 3...

....and a kick a$$ 100 amp modern brushless alternator making it all work, provided by yours truly. Kudos to finding a bad battery in your bank vs blaming the alternator for low output. Proper troubleshooting fixes issues quickly and correctly first shot. Nice job on your window tracks, tint...

GR, when it runs, come drive it, or I'll bring it down to you or a rally. Will, thanks for the point on the ring gear possibly being on the torque converter. I never considered that, even though having seen it before. A few eBay Allison 3000 MH transmissions seem to have this exact...

Got the engine undressed today while my oldest daughter was at karate for 45 minutes. All excess unneeded external wires and hoses removed and discarded. That cleaned it up in preparation for a test run. Then removed vehicle side ECM harness and pinned it out according to the diagram above...

I've never seen this. Each wire is marked as to its circuit identification.

Here, it has an electric fan clutch. Chew on that for a bit while I am decoding this harness against the diagram. I only need power and ground, but the other connectivity will tell me what is enabled in the ECM as far as options without having to program it.

Relax Chester. I'm at the kitchen table right now pinning out the harness against the Cummins Quickserve online manual.

That is just for build variance discrepancies, ease of mounting. All 6 injector lines would need to be bent, and there may be a hidden pump support bracket that would not line up anymore. Yanking the gear from the front is super easy and you only need to remove the plastic cover with the tach...

$1700? Tell them to FO. I paid $550 at a local place that custom makes a high volume of them for global replacement applications. The entire thing is copper and brand new, they only reused the end tanks. It was an amazing process to see it all happen. They will likely not show a listing for...