Posted by jdemaris on November 26, 2014 at 04:55:17 from (70.194.9.125):
In Reply to: injector pump posted by azgene on November 25, 2014 at 19:15:19:
I don't remember what engine you have. If it's a 300 series Dubque Deere engine with a horizontal-mount pump - it's pretty hard to go wrong. Pump driveshaft stays attached to the engine and pump slides off of that shaft. At the end of the shaft is a male tang and a dimple mark. The inside of the pump also has a dimple mark that lines up with it. So the only thing that can go out of wack is the little bit of wobble room the pump has in the slotted mounts. That's for fine tuning the static timing. If the same pump goes back on -it's usually easy to see where it was by the paint marks. If you want to do it all by the book - lock the flywheel on TDC for #1 cylinder on compression stroke. There ought to be a special bolt on the back of the engine with a timing- stud sticking out of it. You remove the bolt, flip it around,and lock it into the special flywheel hole to lock on TDC. The pump also has two timing lines that line up for TDC installation.
You probably need a seal kit for $14. Also a new pilot tube for $8. Also a new housing- pressure-regulator for $10 (what you are calling a check-valve).
One special tool needed to get the head screw out of the pump. It uses a 6 tooth internal fluted Bristol wrench. Wrench usually costs $10 if you can find one. Some people have modifed a Torx bit to make it work. Can't say I've ever tried that.
US Diesel sells all the parts to anyone. They are in Fort Worth Texas.
On the bench, it takes about two hours to take the pump all apart, check it all out, reseal, and put back together. If you send it out to a pump shop - expect to pay anywhere from $400 to $800 for the same job. Maybe $50 in parts and two hours labor. But the pump shop will also take the time to mount the pump on a test stand and verify all is working as it should. Test stand not needed when you have your own tractor to put the pump on and run. Once running, timing advance can be easily adjusted with the pump on the tractor, of needed.
RE the pellathane plastic ring that broke. It can be updated to something better for an extra $50. Pump shops usually do NOT give the upgrade unless you ask for it.
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