LS 180 won't crank

[Lr1997]

Hi all, a buddy of mine is having troubles with his LS180. So long story made shorterish, he bought the machine a year or so ago. It had just had the injection pump rebuilt. He had it for maybe a week or so and it would just and random times start blowing white smoke and skipping on a cylinder(s). He took it to the injection pump shop and they tried it and said it just had air in the lines and nothing wrong. So fast forward to now, it has set about a month and won't crank. The electric pump which is mounted on the field filter housing is coming on and pumping fuel to the inlet on the injection pump, though the electric pump sounds funny st times. I've messed and bled the fuel and for the longest time could get just a little fuel from the injection pump but not much, then one time I got a decent amount, and bled the lines and it would try to hit everyonce in a while and smoking so it was getting a little fuel. Just shortly after that it basically quit smoking and won't hit, little to no fuel out of the injection pump lines at the pump. Good flow of Fuel is getting to the Inlet of the pump. The solenoid on top of the pump beside the inlet is clicking and working. The solenoid type thing on the bottom of the pump isn't however, I'm not sure what it is. No power going to it but have tried applying power to it and doesn't change anything. I am really confused as to what could be wrong. Any help would be greatly appreciated! Thanks, Luke

 

[Tazza]

It sounds like the fuel cut solenoid is either stuck or not working. As you mention fuel is getting in, but not out. Hopefully Mike10 will pop his nose in on this one, he is the resident NH expert.
The white smoke at times alsmot sounds like a bad injector, if it's not spraying right, it will dump fuel in, not spray as it should. This could give white smoke?
Still, it should start with one bad injector, or at least smoke.