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Allis Chalmers 5050 fuel problems

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02-19-2003 15:09:32

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I have a 5050 with a fiat diesel. The last two winters when it gets cold out, tractor's rpm's increase and it dies. Only way to get it going is to bleed the system and it runs for a while and kills again. It's fine when it's warmer out. Have tried fuel dry, anti-gel, fresh filters, cleaned lift pump screen, none have helped.Any ideas would be appreciated.

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02-23-2003 05:06:19

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 Re: Allis Chalmers 5050 fuel problems in reply to Todd, 02-19-2003 15:09:32  
Todd/ You may want to check the cam lever on the pick up pump, it can get packed with sludge. The sludge will keep the arm from returning to the nutral position in extremm cold.The lever can't return fast enough to contact the cam shaft. Hope this helps/jim

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Farmer Gene (WI)

02-21-2003 02:16:26

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 Re: Allis Chalmers 5050 fuel problems in reply to Todd, 02-19-2003 15:09:32  
Get some #1 diesel fuel and put that into the tank, you probably got straight #2 in it now and it will start gelling at +20, up here where it gets really cold we usually run 50/50 blend #2. Check the water traps under the fuel tank also, the screens usually get plugged. hope this helps.

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03-13-2003 19:49:42

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 Re: Re: Allis Chalmers 5050 fuel problems in reply to Farmer Gene (WI), 02-21-2003 02:16:26  
Man, I've been having the same problems as Todd with my 5050 all winter. I also changed my filters, replaced my fuel pump, added anti-gel, replaced fuel line. I'm pretty much convinced the problem is in the tank, so I am very interested in learning more about the water traps. What are they, where are they and can I get to them without taking the whole tank off? I tried to get the fuel shut-off valve off but it won't come off without moving the tank back an inch. Any suggestions?


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