Problem with Ford 1500 injector pump

[PCausey]

Hello and thanks for reading. I am reading through the forums now but if anyone can direct me to past posts that are relevant or provide new info that would be great.

I have a Ford 1500 tractor with the two cylinder diesel and the Kiki injector pump. While I was out of town for several weeks someone put bad fuel in it and it died, I came back to find it full of water that had been in the bottom of the fuel barrel. I drained and cleaned out the tank, drained everything possible and got clean fuel back to the pump but couldn't get anything fuel to the injectors so I pulled the lines and pulled the spring loaded lift covers off to clean them out and I soaked everything in penetrating oil over night. Today I was able to lift the plungers out and with the valve open to the fuel tank I have clean diesel running though very slowly so I'm pretty sure all the water is out of the system now. I put my fingers on top of the plungers and with the engine spinning I can feel them go up and down a very small amount, probably 1/16" at best. Next with the lines still off but the plunger caps and springs back in place and clean diesel filled to the top where everything should be fully primed I ran the engine a few seconds on ether to see if any fuel was actually pumping. It is not, in fact if anything the fuel leaked back down in the holes further when I tried that.

My thoughts are that perhaps theres a pressure portion of this pump that feeds the fuel lifter valves with a check valve or something and that portion of the pump is somehow stuck and not making pressure anymore. I'm an experienced mechanic and not scared to tear into it but I would like to know more about it first, maybe there's an easy fix and I'm not seeing it yet.

Thanks for the help

 

[cjfling]

All I can say is wow and good luck. I'd contact JC-Jetro if he doesn't post something soon. He's real knowledgeable on these small Fords. The phrase "get a rope" comes to mind for whoever fiddle with it.

 

[scthkr]

Did you ever resolve this issue?
I have a nearly identical problem, and your post is the best description of my issue. Thanks!

 

[thepumpguysc]

I don’t recommend anyone fooling around with/in any injection pump.!!
There’s just to much to lose.
Especially trying it while the pump is still on the engine.!!
When the pump is on the engine, the rollers are under “up” pressure from the pump camshaft.. & when u remove the delivery valve holder (top nut) the parts that are under pressure, raise up and off their seat..(not good) and when u tighten it back up, they are forced back down and shear their locating pins.!!
So unless you have extensive knowledge with fuel inj pumps.. or a step-by-step instruction manual, don’t do it..