530d help on not starting

I have a 530 that I cannot get to start . I have fuel(good amount) to the injector pump. A super small amount out of the return. I am diesel savvy so this has me stumped. The tractor was bought as not running. The PO left diesel 911 and diesel additive all over the cab area. Pump is turning over thru window and according to the dirt the pump hasn't been fooled with as best I can tell. I put FI cleaner in the top of and into the fuel intake but still nothing. I've had the top off the I J pump and all seems to be loose and working. I've got the injector lines loose . No fuel up there either. It will run on either. I can't find the pipe plug that is supposed to be used for the timing of the engine near the starter. Thank you in advance
Boog out

First thing is to bleed injector lines at top of cylinders.

How LONG since engine last ran? If it's been awhile injection pump might have both rotor plungers stuck from setting. ANY water in fuel, or Bio diesel is your worst enemy
causing the close fitting parts to stick when setting awhile. I see this happen on 4-5 pumps a month that I tear down for repair.

Several years before we got it'

All are loose and 1 is off . I loosened them .

Will the injector cleaner help? I know that it didn't happen overnight and that it won't un-happen overnight

HIGHLY unlikely. A COMPLETE tear down/cleaning is needed for any hope of injection pump working again. Just what I've seen in over forty-five years and counting of pump
and injector repair.

I was afraid of that. Thanks

Not sure if you are coming back here to check replies I
meant to add this reply earlier so I hope you have this
set to alert you of replies by email. You call yourself
..diesel savvy.. curious what that means. I will attach a
manufacturers ..Operation and Instruction manual.. for
an injection pump similar to yours but for a 6 cylinder. I
am going to show you what Dieseltech is talking about
when he says the ..plungers.. may be stuck. The
plungers are what pump the fuel to the high pressure
that it is delivered to the injection nozzle under. The
plungers are mechanically forced together to pump
and pressurize the fuel. But the only force acting on
them to move them back to stroke again is the fuel
pressure supplied by the vane style transfer pump. So
this is why they can very easily stick. In the manual 3
diagrams will fairly well explain how they function, they
are fig. 1.1 on page 1.3, fig. 1.5 on page 1.5 and fig. B
on page 1.9. Reading and studying the entire Section 1
will explain the entire ..Construction and Operation of
this style of pump. This is a fairly comprehensive
manual and I hope this does not encourage you in
anyway to attempt to tear the pump apart yourself. I
would highly advise you not to attempt this. Self repair
of these units has a very low percentage of positive
outcomes. In other words in the end you will have a
bigger piece of junk than what you have now. You are
new here so I want to inform you that Dieseltech is a
pump rebuilder who lives in Indiana. Many on here ship
their pumps to him for repairs. All I have ever heard is
post responses of good quality work and economical
prices. If you want to pursue this contact him through
the site email.
IJ Pump info