Carrier Ultima 53 Engine Help

Need help with my Carrier Ultima 53 unit. I recently had a friend of mine rebuild the Kubota 2203 motor which blew last summer. When it was disassembled, it was discovered that cylinder 3 ran lean and bent the rod and blew the piston ring. Long story short, i put the motor in a few months ago; however, am having problems getting it running properly. By no means am I a diesel mechanic, so I am having problems troubleshooting the unit.

>When i turn on the unit for the motor to start, it goes through starup diagnostics and attempts to turn over, however, it just cranks. If I push on the throttle slightly, it will eventually start up but this is when all hell breaks loose. The motor immediately goes into a very rough idle, AT FULL THROTTLE with plenty of white smoke coming out the exhaust. If I power down the unit, the motor will not shut off and keeps running AT FULL THROTTLE. Only way I can shut the motor off is if I cover the intake feed tube. My suspicion is it is not running on fuel and strictly buring oil which is why it is not responding to the shut off, but I honestly do not know. Please, anyone familiar with diesels, I can use your help.

I have already replaced the the fuel pump puller/primer assembly and have also tested the engine stop solenoid and both the holder and the pull function are working correctly. Am I not priming the motor properly, is there something I am over looking.

PLEASE HELP..