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Tractor Talk Discussion Forum

Ursus Injection Pump Issues

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Davis In SC

01-04-2007 19:41:01




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I was talking to a friend tonight, he has a Ursus Tractor. I think it is a 3250, supposed to be the same thing as a MF231 ?? It is only a few years old, with only 200 hrs on the clock. It has developed a problem, It runs for an hour or so, then starts missing and finally quits. My first thought was a clogged filler cap, but he had already tried running it with the cap loose, and the same thing happened. He has changed fuel filters several times, that does not help.. Everyone is telling him that the injection pump needs to be rebuilt, but I think it is an issue of air getting in the system, before the pump. We are going to look at it Saturday... Any ideas or hints ??? TIA

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c hess

01-05-2007 06:00:59




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 Re: Ursus Injection Pump Issues in reply to Davis In SC, 01-04-2007 19:41:01  
Dont know what kind of pump on it but agree it is a restriction in line to pump. Remove at inlet to first filter an see if you get full flo w out of line.If not put air pressure to it an blow back in tank. This is assuming tank is above fuel pump. If tank is lower you might have a leak in line leaving air get in. Not familiar with tractor at all but i would not fool with pump till you are sure it has a supply of fuel.

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