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WD-9 Injector pump trouble - rebuilding
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Posted by Steven on October 14, 2001 at 11:40:46 from (64.68.165.168):
I acquired a WD-9 for free a couple years ago and put diesel in it and couldn't get it to run pulling it around the yard. It was stuck when I got it but came loose easily. I have since done the same several times in the last couple of years. If I pull it around with the compression lever set for gas and then switch to diesel it will fire a couple of times. It will also fire on ether when in the diesel position. It will shoot fuel out of the injector lines, but not out of the injectors themselves. It has good compression on 3 cylinders, number 4 is weak. I have had the injectors tested and they work. I have bled the system of air, I have checked the pump timing, everything I can check has been checked and set according to the shop manual. Unfortunately the shop manual does not provide much info for working on the pump itself. Does anyone know of anything that could be fixed in the pump to make it work? I know the primary pump works even when cranking it by hand it will run fuel out of the final filter. I do not want to spend $600 to $1000 for pump repairs on a free tractor. OR if anyone has a good pump they would like to sell for a reasonable price (less than $250), please email me. Thanks for your help. Steven
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