I have been chasing this issue for several months. The machine would run fine for a little while and then loose power no matter what I did with the throttle. I would have to crack the lines on the injection pump to get it started again. Well my thinking was that it is a fuel problem. I drained the tank and cleaned it. Checked all the fuel lines. Replaced the filters and fuel pump. After all that it still did the same thing. So I bought a rebuild kit, and me and my buddy who has rebuilt many pumps. We rebuilt the pump and reinstalled it. Got it running again but sounded like it was missing and was getting a lot of white and blue smoke. Also had several leaks from the pump that never had before. We had replaced all the gaskets and seals. I have no idea why they would be leaking. I am thinking about taking the pump off again and sending it out for a rebuild. Was looking at getting some opinions on this or maybe there is something that I am missing. Any suggestions on who to send the pump out to?
JD 450 Loosing power and then stalling
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