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Case Tractors Discussion Board

400 diesel is haunting me

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Posted by Mike Genrich on February 04, 2013 at 20:27:56 from (

Im working on a 400 diesel standard tread. This tractor came to my shop in boxes. The Engine was on a pallet and I was told it was overhauled twenty years ago and never ran and I beleve this to be true. I have the tractor In one piece now but I cant seem to make it run right. It Wont start with out a shot of eather even when you have it up to running temp. It Idles rough and puffs a little black smoke at idle. When you get past about half throttle it smokes like hell and falls all over its self. Im running it with no air cleaner, have had the pump and injectors rebuilt, all new fuel filters, have checked to make sure the return to the tank isnt pluged, and checked the pump timming several times. I even pulled the valve cover to make sure I had the #1 cyl. on TDC when I set the pump at 26 degrees like the genuine case manual said. It seemed like I lost ground with the rebuilt pump so I pulled it back off and took it back to the pump shop today but im guessing that they will tell me the pump isnt the problem. Im starting to wonder if the cam timing is off. Would it run at all if the timming marks were off a tooth one way or the outher? This one has me by the shorts!


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