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Trouble starting a B...

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Karl Bader

08-29-2001 13:18:18




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I am having some troubel starting my just restored JOhn Deere B. THe starter will crank for a little than struggle, then go fine for a little while and so on. My question? Is there a problem with the starter? The tractor will "pop" once in a while as well... I find that I am also draining gasoline from the petcocks on the bottom of the engine, IS this bad? I thought it might be... Please e-mail me or respond to this message if you can help.

Thanks,

Karl

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Darryl

08-30-2001 05:45:41




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
Karl, one of my favorite B experiences goes like this. One day my neighbor went to start the B to help with a job we were doing. He came back a couple of minutes later and said it wouldn't start. I went over and the engine would not turn over. Put the battery charger on it and waited an hour. I determined that the battery was charged but yet the tractor would still not turn over. It was then I noticed that the throttle was full open and the choke was closed. Knowing that the B flooded easily, I decided to pull the plugs. While standing on one side of the tractor by the spark plug, I told my neighbor to turn the engine over. Soon as he stepped on the starter I was soaked in gasoline. Neither of us could believe it. I told him to keep turning and finally a mixture of gas/air came out that I figured could be ignited with a spark. I put in a fresh set of plugs and the tractor started fine.
Remember the plugs can and do gas foul. Hope all enjoyed the war story. It is true!

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Dan

08-29-2001 19:10:21




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
Karl, you may get a small amount of gas out of the petcocks if you choke the engine too much. Also it may be as others have said that your float is set too high. If the float has a leak or needle and seat are stuck open I would think the gas would run out of the petcocks.(had that happen on my G once with a bad float. Timing could be a problem as could weak spark. Have you tried pull starting it? sometimes that will work when other methods fail, opnce it is running you can see how it sounds and adjust. The extra fuel in your cylinders isn't very good for new rings and bearings. Good luck on it, I'm sure it is a simple problem and once you get it fixed it will start good for forever. also if you have much fuel in the cylinders the starter may be turning slow when the piston is up and there is fuel in the way.

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Jon

08-29-2001 18:19:45




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
I have a 1946 JD B and the day that we brought it home while in progress to the gas station right from our house it stalled and we thought that it ran out of gas so we walked home and got our gas can and put gas in the tractor it worled over about 2 times and it locked up so we opened the petcocks and tried to start it and gas wunt every where, we pulled it home and found out that we fludded the cylinders with gas and then opened up where you check the oil and 3 gal. of gas came out so we changed the oil and filter and had the carb rebuilt and got a new fuel bowl and stopped that problem so you should check your oil and see if you have gas in it if so I would change the oil and filter and have your carb rebuilt that is all I can tell you from my experience hope it helps Jon;

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Clooney

08-29-2001 15:21:44




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
Karl, has it ever run since you put it together? If not maybe you just have the spark plug wires reversed. The fuel running out the bottom drains would be normal if you are choking it & it isn't firing. Remove both spark plugs, then with the L/H plug hooked up & laying on the frame or block turn the flywheel until the L/H piston is making compression & see if the plug fires when the L/H impulse on the flywheel lines up with the case mark (or the mark on the flywheel hub & cover line up). If if has never run since it was put together you might want to install new spark plugs (they are probably fuel fouled by now) & then just try reversing the plug wires as that would be very easy to do. Also make sure you are getting a nice blue spark & not a weak yellow one. If it has run & just starts hard post back for more info.

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Karl Bader

08-29-2001 15:29:22




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 Re: Re: Trouble starting a B... in reply to Clooney, 08-29-2001 15:21:44  
It has never started before... plugs are brand new, as of the rebuild. I'll check spark then won't have a chance to look at it until the weekend...

Thanks,

Karl



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Chuck

08-29-2001 14:26:22




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
leaking excess fuel around pitcocks probably is normal. If you want a good start convert your tractor over to 12v, I did 3 b's this way. Also go to a delco distributor and coil, like used on the 50/60/70 series plus add electronic ignition, kit available at genesse electronics. If you can't repair your carb send it to Robert's carburator.



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SanDiegoGreen

08-29-2001 13:30:16




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 Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:18:18  
Sounds like your magnetto magnets may need to be recharged assuming everythng else is OK. If you are draining gas from the cylinder petcocks, you may also have a carb problem. The float may not be sitting correctly or it is running way too rich. Good luck on that 'B'!



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RICHARD DUNHAM

08-29-2001 18:01:42




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 Re: Re: Trouble starting a B... in reply to SanDiegoGreen, 08-29-2001 13:30:16  
KARL,

DON'T LET ANYONE FOOL YOU - GAS COMING OUT OF THE PETCOCKS IS NOT NORMAL!!

TRIED TO START MY NEWLY REBUILT B THIS PAST MONDAY (AUG 27) AND IT HAD THE SAME TROUBLE. TOOK THE CARB BACK OFF AND LOOKED AT THE NEEDLE VALVE. TWO LARGE CHUNKS OF DEBRIS KEPT THE NEEDLE FROM SEATING. FUEL WAS JUST DUMPING INTO THE CYLINDERS. CLEANED THE DEBRIS OUT AND TOOK THE BRASS FILTER SCREEN OFF AND DID A GOOD CLEANING IN THE AREA ABOVE THE SCREEN. PUT IT BACK TOGETHER AND REPLACED IT ON THE TRACTOR. DRIED THE PLUGS OFF AND PUSHED THE SARTER - PRESTO WHAT A SWEET SOUND!!!

GOOD LUCK.

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Karl Bader

08-29-2001 13:33:47




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 Re: Re: Trouble starting a B... in reply to SanDiegoGreen, 08-29-2001 13:30:16  
it is a dist. not magneto... also how would I find out how to fix this possible carb problem?

Thanks,

Karl



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Russ

08-29-2001 22:50:28




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 Re: Re: Re: Trouble starting a B... in reply to Karl Bader, 08-29-2001 13:33:47  
I vote for carb float full of gas or water. Russ



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