My Tractor Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
Hi John Deere experts,

I snapped the screw, which I'm pointing to in the photo. It now spurts out diesel when the tractor is running. I can't seem to find much information online about that screw, if I can simply order a new one. Any insight is much appreciated. Also, to note my mechanical skills are limited, but I'm always willing to learn and try.
2490150
2490151


The photo above is of the head for the screw.
 

·
Premium Member
Joined
·
5,515 Posts
That's probably something JD sells as an assembly (the whole pump), if it's available.

IMO, your best bet would be to research the engine make/model (as in, who manufacturered it for JD), and then look through their parts diagrams/service manuals for the engine. And if that does 't work, look for any part numbers/brands on the pump itself, to indicate who makes it and if there are any parts diagrams/service manuals from the original pump manufacturer.

Incidentally, why were you removing that part (it could be either a nut or a bolt)? From what little I know about them (diesel injector pumps), you need to know what your are doing, as some of them have specific setups, where even loosening the wrong bolt will throw the pump off it's calibration, and need fairly specialized tools and/or parts to get it back into calibration, and if you can't do it yourself, the people who have the tools and knowledge tend to want a fair amount of money to do it for you...
 

·
Premium Member
Joined
·
5,515 Posts
If it was just one, and where his finger was pointing was hollow, perhaps, but given that there is a second one with the same style head on the other side of the spring, I would say it's more likely there was/should be a metal wire looped through them in a "do not touch" sort of thing...

But I have pretty limited knowledge about those pumps, so it could be not a big deal (other than the hassle of fixing the broken off bolt/stud).
 

·
Registered
Joined
·
411 Posts
The way it has the hole in the nut part that snapped off, makes me think it’s part of the fuel screw. That hole is for safety wire so the screw doesn’t turn/tamper evident. If it’s the smoke screw then the IP will need to come off and the old broken off piece will need to be removed via an EZ out/thread extractor and replaced. Not something easily done at home. If it’s just a bleeder then you can remove the same way and replace.
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #7 ·
That's probably something JD sells as an assembly (the whole pump), if it's available.

IMO, your best bet would be to research the engine make/model (as in, who manufacturered it for JD), and then look through their parts diagrams/service manuals for the engine. And if that does 't work, look for any part numbers/brands on the pump itself, to indicate who makes it and if there are any parts diagrams/service manuals from the original pump manufacturer.

Incidentally, why were you removing that part (it could be either a nut or a bolt)? From what little I know about them (diesel injector pumps), you need to know what your are doing, as some of them have specific setups, where even loosening the wrong bolt will throw the pump off it's calibration, and need fairly specialized tools and/or parts to get it back into calibration, and if you can't do it yourself, the people who have the tools and knowledge tend to want a fair amount of money to do it for you...
The injection pump was leaking diesel and some was appearing to be coming out of that nut. I tightened too much. I barely put any pressure on it and it snapped. It's a bummer, I had a little leak, now, a giant pain in my ***. Rockie mistakes. I did find a diagram. It's a bolt and the part I broke off is the nut.
 

·
Registered
Joined
·
6,159 Posts
You also might get a better answer in the CUT or SCUT forums as you tractor is much bigger than the garden tractors discussed here. Roger
 
1 - 10 of 10 Posts
Top