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4000 injector pump

D

Dave H(NY)

New User
Well I think the pump went. Now I need help. I have zero diesel experiance. Here's the deal was running ok but under a constant acceleration it would slow down, I would throttle down then I could accelerate again and it would be fine. I had the tractor sitting and running and it shut down, would not restart, I hit it with ether and it started I parked it shut it down and wouldn't re-start. I tried again after a day and nothing just cranks. If I play with the throttle it sounds like it's going to start then just sputters and cranks again. I would like to try and rebuild the pump and replace that plastic part everyone talks about that breaks and doesn't allow the governor to work properly. Can you guys direct me where I should go to get everything.
 
What tractor? JD and Ford both had 4000's, probably other brands, too. Ford even had two very different models of 4000's - a 172 c.i. 4-cylinder and a 201 c.i. 3-cylinder.
 
No matter what brand of pump, take it to a shop and have it rebuilt if needed. They will fix it, test and set it correctly.
 
I would sure change the filters before I spent time and money on the pump. I've had two tractors act like that, and the filters were plugged on both.
 
US Diesel in Fort Worth Texas will sell you all the parts. Probably $50 will cover everything unless you want to upgrade and eliminate the plastic ring.

Stanadyne/Deere tech manual is available free online in a .pdf file.

If you can follow a manual and have skills you'll have no problem. Otherwise - forget it.
 
The Stanadyne on the Ford 4000 is close to the same as on the Deere 4000 - in regard to repair techniques. 4 cylinder instead of 6 and the Ford has no auto-advance as I recall. The Deere/Stanadyne manual will give you all the info.
 
So will a person doing it him/her self if the manual is followed. It doesn't take a genius to properly adjust a pump. The pump shops do NOT rebuild the pumps except in rare situations. They patch them up, reseal, and check and/or adjust calibration. Often less then $50 in parts, 2 hours labor and a $600 or more charge. That leaves lots of incentive to do it in your own shop unless you like throwing your money away.
 
Before I condemned the pump I'd make darn sure it's got a good steady flow of fuel going into it and no air leaks on the low pressure side. One leak at the filter is all it takes to create a lot of havoc.

Rod
 
Have you ever repaired a pump on a 7.3 Idi. I got one that will not start warm and barely starts when cold. Hate to spend 600 bucks. Truck aint worth that.
 
When it causes the sleeve and piston to bust I think that is more problems and happened to a friend. And in 5 years of looking on both sides of the pond had not found the parts, say they were never made yet the tractor had them in.
 
Well, thanks for your instruction on correctness, I added the missed info in a second post. Obviously you have no input just need to make a smart comment. So to you thanks for nothing hope to return the favor to you some time. I've been on this board for over ten years and have helped many others here, and this was one of the only times I've asked for help.
 
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