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Fordson Tractors Discussion Board

Dexta injector pump

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Posted by Farmer-Tek on January 03, 2012 at 07:04:18 from (

New to site, but came as soon as I heard!lol. Have an unknown year Dexta that I am restoring. Was a real mess when I bought it, but have since pieced it together. It now runs (hard to start)drives, and can pull box blade, but has a large amount of smoke that smells alot like un-burned fuel. The history is that the fuel tank was full of gunk and sludge at the bottom and the fuel filter case (no filter in it)was full of sludge as well. Not having the money and being adventurous I decided to tear into the pump (mechanical) and have a look as well. Didn't notice any real debris in the pump, but had to be there with no filter installed. I did have two broken plunger springs though. I have since completely purged the system, installed fuel filter, fresh fuel,and installed new plungers & springs and injector tips. Has been alot of fun getting the old girl up and running, but now it's time to get to the next phase. In short, the tractor has obviously been handled by people that are not so mechanically inclined. In being said there are alot of things out of adjustment I'm sure. Currently I have gone through the complete fuel system from fuel tank to injector tips and have checked the timing. From what I read it sounds like the best advise anyone has is to not mess with the pump etc.but it's too late for that. Was wondering if anyone could point me in the right direction as far as trouble shooting the smoke. Also would like to know just how far the adjustment screw is supposed to be screwed in or backed out. It's the screw with a hole in the top (for wire) and has lock nut that jambs down on top of the injector pump. Any help would be great!Also, Any advise as to how to set the injectors would be very helpful as well!


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