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Tractor Talk Discussion Forum

case 500 diesel injection pump

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diesel

02-19-2005 13:41:48




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cleaned and drained fuel system cannot get injection pump to prime, have tried to bleed air from system but cannot get past the pump. Any info would be greatly appreciated




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J. Schwiebert

02-19-2005 15:54:40




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 Re: case 500 diesel injection pump in reply to diesel, 02-19-2005 13:41:48  
I am not a Case man last Case on this farm was a cross motor, but am trying this for the challange of the Bosch PSB pump. How long has it been since the tractor last ran. Have you verified that the transfer pump is building at least 5 pounds of pressure. How are you bleeding the high side? If you loosen say three high pressure lines at the pump will fuel dribble out of the lines?. Have you checked the movement of the fuel shut off? Have you had the timming window cover all and verified that the govenor does move the control arm and that the pump rotates? Was the pump off? Remember they are driven at crankshaft speed, fairly easy to get one turn out of time. Start there and let me know If you have questions ask away.

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diesel

03-01-2005 12:26:45




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 Re: case 500 diesel injection pump in reply to J. Schwiebert, 02-19-2005 15:54:40  
Well I got it to run, but it runs wide open all the time. I cannot get the governor to move very easily, it seems to be very stiff. When it is running I can move the governor and slow the RPM"s down but that is about it. The pump is recieving oil and it has spring pressure against it but I do not know what is holding it. thanks



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diesel

03-01-2005 12:37:38




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 Re: case 500 diesel injection pump in reply to diesel, 03-01-2005 12:26:45  
I have no control of the rpm's if I move the throttle lever. The only way I can control the rpm's is if I remove the cover that houses the govenor and move the what I think is the govenor by hand.



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