Farmall 706 injector/pump help

[Clint Skarovsky]

My Dad has a 282D 706 with the Roosa Master pump. The tractor hasn't been ran in a while, it was running just fine until we parked it for some repairs...we replaced the exhaust manifold and removed the fuel tank at the time. We poured fuel in it now and opened all of the lines. Please bear with me, I haven't been there so this is what my Dad says. The filters were still full of fuel, there is fuel present at the pump, and the return line is flowing fuel back to the tank. There is not high pressure fuel at the outlet side of the pump and the tractor obviously won't fire.
Where should we start? Thanks in advance.

 

[Dieseltech]

Injection pump probably has some internal parts stuck, metering valve and/or plungers. I've been seeing more of that lately, just repaired a JD 2010 pump for the same issues, it had stuck plungers. A complete tear down and cleaning is usually needed when plungers stick in the rotor bore. Any traces of water in fuel or bio fuel makes the problem worse..

 

[Clint Skarovsky]

Thanks...I guess my next question is this something we can do with a seal kit or will it have to go to a shop? Is it just seals and gaskets or will it require bench set-up on calibration equipment after we mess with it?

 

[cornerpost]

Shop.

 

[Dieseltech]

If the tools are available they can be repaired by someone with knowledge, but one small mistake can be very expensive. I prefer to bench test after repair, after all some of these pumps have fifty years of who knows what has been done to them in the past. E-mail is open on Classic if you have more questions..

 

[Al Baker(pumpman)]

Sounds like she has stuck. This is very common thing these days with our new ultra low sulfur diesel. 25 maybe 35% of all pump work I do anymore is stuck pumps. Getting one worked on is not very expensive. Call around and price shop as well as check on other benefits besides just the price of the job. Warranties matter as well as turn around time. Some guys give a discount for this thing or that. I give 50 bucks off from anyone who comes from this site. Some shops will have winter price cuts because work may be slow. Few calls could save lots of cash. It takes a certain skill level to go through this pump at home. Some guys do it. Some fail. Problem is the fail usually costs way more to correct than it would have cost in the first place. I think a pressure test, then run on a test bench is the only way to insure success. I would be glad to help you out if you cant find someone in your area to treat you right. Al 231/757/0064