About to give up on my Ford 1900

[CJFord1900]

I got this 1900 as a project, was very excited to work on it as it is 4x4 and has a cab, and I recently got my hands on a 1700 with a loader (and a really nice hood etc) that
I was going to put on my 1900.

It all started with the previous owner thought one of the injectors was bad. He replaced one with a new one from NH, and it didnt run any better. Turns out the tractor had a blown head gasket. It ran great when I got it, other than the large amounts of white smoke it was pouring out! Everything was pumping fuel, I had full range RPMS, but with LOTs of smoke. I didn't want to make the situation any worse so I haven't ran the tractor much other than loading it and unloading it, and once or twice around the yard. We pulled the head, got it resurfaced, got new valves, reinstalled with new head gasket, started the tractor up and it still smoked! Only this time the smell was more like fuel rather than coolant. All three injectors have now been rebuilt, and I changed the oil in the injection pump. Put it all back together again and now it acts like its running on 2 cyls , no range of rpms, will hardly move.

What in the world is going on here! I'm not a tractor genius, but am fairly mechanically inclined. This thing has me stumped.

I have read like every forum I can find, sounds like there is a chance I have too much oil in the injection pump, but I also am reading that since I do not have the drain and fill screws in my pump that it could also be being lubricated from the engine?! I have read contradicting forums, so not sure here. The first time I added oil back to the pump, it acted the same way, so I pulled my cover and looked inside again wondering if I didnt land the spring where it belonged, put it all back together again and added oil again and still acted the same way. When I dumped the fresh oil from the first refill, it came out pretty black, this is what was making me wonder if it really did mix with engine oil or not.

One other thing to note is that I read in a few forums that the head bolt torque spec is inaccurate in the manual, and so I'm wondering if I under torqued these bolts, and blew a head gasket again already???? If I got my RPMs back, and it still smoked, at least I would feel a little bit better, but to have no RPM range, acting like it has a dead cylinder, and still smoking, Im loosing my patients hahah

please help!!

 

[JC-jetro]

Sorry for your headache, a few question and observation here.

1- Your injector pump is lubricated by the oil in the pump and it does not use crankcase oil.
2- Zoomed in your injector pump, like you said you do not have drain port. The back plate can be loosened a bit and that dumps the oil. 1700 will only takes 2 oz of the same engine oil. You do have a fill on top.
3-Can you tell which cylinder out of 3 not working?
4- Are you still getting white smoke? tell tale sign of antifreeze burning in the cylinder? and if so, do you get trace of oil in the radiator fluid?
5-did you loosen each retaining nut at the injector to see if you get diesel coming out without bubbling, basically have you bled air from the line and injector pump. The pump only pumps small amount of liq diesel. trapped air can pulsate back and forth all day without pumping. Liquid is not compressible but air is.
6- Have you messed with injection pump timing? have you loosened if from support bracket?
7- is you fuel filter clean? although dirty filter would equally mess up operation with the whole tractor and not just one cylinder. Cannot emphasize the importance of bleeding air all the way to the injector pup and then to each individual line up to the injector it self.

Let's just build it up from here.

JC,

 

[CJFord1900]

I need to continue diagnosis on this, ended yesterday frustrated.
I have not figured out which cylinder is not firing.
I am still getting white smoke.
I have not noticed any oil in the antifreeze.
I need to go over my injectors again and make sure there is all the air bled out of the system.
I have not touched the mounting on the injection pump. Im trying to avoid needing to play with timing lol
When i put the head back on the fuel filter and a bit of line was replaced.

 

[JC-jetro]

Yup, I know with the frustration but there is one thing to do and that's to move forward unless you chose to abandon it.
Only thing that could cause white smoke is burning the antifreeze in the cylinder. did you visually check old head gasket vs new? was the passage ways holes exactly the same? hopefully you will get better stability of running the machine and be able to change rpm at will once you checked and bled all the air. keep us posted, I hope we can help out.
JC,