i know guys who have ran for several hrs with the pump this way but i dont think its a good idea. by removeing the ball and spring i told you about 1st after you reinstall the line (no ball or spring) it allows the tractor to run etc. i did everything you did to try and get my tractor running ,ended up opening site glass on side of pump ,it let excess fuel flow and the tractor run ,i limped it home about 1/4 mileand replaced the injector pump after calling my dealer etc. if the pumps in time (isnt loose or moveable)this is more then likely your problem. they can be worn out from age or heat over time ive been there and had to replace my injector pump. #2 the injector pump mite need to be replaced or rebuilt, it has what they call governor weights that are made of a kind of plastic that ware out and break ,letting too much fuel out to the injectors etc. Hey jerry i once owned a john deere 350 my self 6way blade and winch ,1968 yr, and it did about the same thing.i do custom work etc sometimes for a few folks, i would look at 2 things #1 the return line ,there is a spring and steel ball just inside the fitting that connects to the pump this restricts pressure and prevents fuel from leaving the injector pump and regulates the fuel to the injectors, etc. I've got lots of dirt waiting to be pushed around. The second is that the fuel shutoff solenoid has pretty much always been dysfunctional but I don't know if this is related.Īny help would be appreciated. The first is that before my tank cleaning, for years there has been a large amount of suction when the fuel cap is released. I would also add two other points which I don't know have any relevance. It sounds almost like a vapor lock to me but I don't know what would cause this or how to fix it (and I could be totally wrong). I have never done anything to the fuel injection pump or injectors. When I disconnect the fuel line at the injector pump it gushes when the engine is started, which I guess indicates the regular fuel pump is working fine. I also replaced the fuel filter itself which was clean. I cleaned out the fuel tank and replaced the filter in the tank. This is no problem if you want to work for 15 minutes and then rest for 15 minutes, over and over. This same pattern can be repeated over and over. If I wait about 20 minutes it will start fine and run anothert 15-20 minutes before stopping again. It will start right up but within about 30 seconds will stop running. During this power loss it doesn't respond to increasing throttle. Recently my JD350C diesel runs fine for about 15 minutes and then over about a minute loses power and eventually stops.
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