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Re: It is self-priming


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Posted by TX641D on July 29, 2010 at 21:16:01 from (72.64.92.150):

In Reply to: 641D No prime or bad pump? posted by Dean on July 28, 2010 at 16:44:04:

The tractor was non-running when i bought it. Thanks for the info on the pump being "self-priming". I have taken the timing window off and there is movement inside as the engine cranks over. No "mouse terds" present...fuel is clean. Don't know if shut off plate inside the pump is stuck or disengaging when i open the throttle

Took it to a Ford/New Holland dealer today. Mechanic told me to change my fuel lines...suspect that there may be a suction of air into the system. He suggested that i get a 5 gallon bucket of fuel with direct feed into the injection pump and a direct return line back from the pump to the bucket. I said that if the pump is ever going to prime, it would do so in this "gravity" fed scenario and to check the loosened injectors for fuel after cranking.

I am going to try this and try a pull around the yard as suggested earlier. If no success, then I will have to pursue rebuilding the injection pump. Was hoping it wouldn't end up at that answer....but I think its getting pretty clear.

thanks


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