Isx 15 will not start

[imalumberjack]

one of the plungers was stuck? ......wonder why? did you do the fuel pump head test? I think you apply low air pressure to inlet side of fuel pump head (off pump) and plungers should extend, then with springs off of barrels you flick the plunger down quickly with finger and it should return ....(this is all on cummins quick serve). On mine the book says the engine needs to turn over at a minimum of 150 rpm's ...I don't know if it wont start if slower tho. Sounds like to unrelated problems to me.