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Tractor Talk Discussion Forum

Iseki diesel fuel problems

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geok

07-25-2007 03:54:03




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A fellow down the road from me has a Iseki 3cyl. diesel tractor that dies after running for about 3 minutes. His problem is in the injection pump. Someone that owned it before him plug the injection pump return line to the tank. This tractor has ran this way for a few years now up until this new problem. After you bleed the system and then run engine for about 3 minutes, it dies. Then a blast of diesel fuel comes out of the air vent near the top of pump between it and engine block. When I saw the return line had been plug, I reconnected it to the return line to the tank. But it still starts runs for about 3 to 5 minutes then blow fuel out of breather tube and dies. Any ideas? Thanks for your help.

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MSM

07-25-2007 05:36:38




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 Re: Iseki diesel fuel problems in reply to geok, 07-25-2007 03:54:03  
Check the fitting the return line is attached to. It should have a check ball to keep fuel from backflowing. The check valve may be stuck or blocked.



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dej(JED)

07-25-2007 05:03:08




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 Re: Iseki diesel fuel problems in reply to geok, 07-25-2007 03:54:03  
That is a bypass line to prevent pressure building up.



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