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Allis Chalmers Discussion Forum
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Running problems with my Allis B...

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Pelle

05-25-2007 13:10:24




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Hi Friends!
Now, the little problem I would like to ask You guys; My little Allis B (1939) runs ok and fine on idle, (even when i give her full throttle and back again, she runs ok) but, when I put in a gear, 1, 2 or 3, and start to drive, she just starts do "spit" and die after some minuts of driving, then she comes "alive", picks up speed again and runs ok for some seconds and then starts "spit" angain, and, in worse case she dies totaly.
When I then try to start her up, she just wont start. I have to wait for some time until she cools down a bit.
Now help me out here guys, what could it be? some adjustments to the governor? carburator or magneto??? I hope it�s nothing too big/difficult for me to fix... or too expensive...
Best regards
Yours
Per, Sweden

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greatwest

05-28-2007 19:20:24




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 Re: Running problems with my Allis B... in reply to Pelle, 05-25-2007 13:10:24  
I would try to see if there is much fuel or spark immediately after itr quits! good luck.

the elbow going into the carb is notorious for gumming up with crud ... if your tractor has an elbow or screen there.

good luck, chris.



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old

05-25-2007 14:12:45




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 Re: Running problems with my Allis B... in reply to Pelle, 05-25-2007 13:10:24  
Maybe a condenser going bad. Or as Dick says fuel problems. If your has the main jet plug remove it and make sure you get a good flow of gas out of it for a few minutes if you don't then you know your not getting enough gas to the carb/engine. You can also pull the drain plug out the bottom of the carb to see if the carb isa getting gas but the reason I say pull the main jet plug is thats the area that need to have gas for it to get to the engine. My C will do that some times and I pull that plug and spray it with carb cleaner and I'm good to go again for days

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Dick L

05-25-2007 13:19:46




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 Re: Running problems with my Allis B... in reply to Pelle, 05-25-2007 13:10:24  
My first thoughts would be a fuel problem. Does not sound like it running long enough for a coil problem. I would guess you have a partial blockage between the tank outlet and the fuel bowl at the carburetor



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Rex in Australia

05-27-2007 01:11:55




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 Re: Running problems with my Allis B... in reply to Dick L, 05-25-2007 13:19:46  
Is the tank vented? Maybe it is starving for fuel?
Rex



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