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John Deere Tractors Discussion Forum
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1952 B won't start

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chadman

11-27-2007 09:46:16




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i am finishing up my John Deere B turns over slow and has a weak spark that is blue in color. so far i have had both the generator and the starter rebuilt i also replaced the condenser,points,switch,and battery and retimed it but still no start! want else is there????




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johns48jdb

11-27-2007 18:18:23




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
i would like to agree with kurt. my local parts store made me up a cable for my b that ran from the starter to the battery out of welding cable and took two correct ends for the connections and cable size and had a tool that he hit with a hammer to beat the ends shut on the cable. its been there for 8 years now and has never coroded at either end. the connections are important too, as has been mentioned.

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Kris A NC

11-27-2007 13:23:20




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
Had the same issue as you. Starter rebuilt, Generator rebuilt and still would barely roll over. I checked the ground for the battery to the battery box and it was good. My brother then suggested I take the battery box off the frame and make sure there was a good ground there. It was all painted so I took a wire wheel to it and oiled it down to prevent rust. Has been rolling over like there is no tomorrow ever since. been over a year now. Good luck

Kris A NC

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machinery-man

11-27-2007 11:59:46




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
I think one of the misunderstood problems is starting. Most people crack the throttle and it go to full open on the carburator, you are then trying to get a rich enough mixture to ignite. Even with the choke it sometimes is difficult. I"ve alway barely open the throttle and check at the carb that the butterfly is slightly open. This way the fuel to air ratio is very easy to obtain and it starting should be easy.

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ET

11-27-2007 11:50:26




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
Check your ground conections especialy where it hooks to the frame. You might have to ground to the cast frame and not run throught the tin battery box.



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Hotflashjr

11-27-2007 11:01:27




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
I would check to make sure you are getting a good flow of fuel. Went to help start a friends GP the other weekend and just couldn't for the life of us figure out why it wasn't starting. The gas was shut off. Thought we had turned it on! It's one of those foolish mistakes that happens to everyone.



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THE SMOOTHED DEERES

11-27-2007 12:49:37




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 Re: 1952 B won't start in reply to Hotflashjr, 11-27-2007 11:01:27  
Aww fuel flow problems ! Iv'e added a non factory item to my tractor ,a clear fuel in line filter , and i'm amazed at how easy it is to be sure fuel flow is shut off and when i'm getting gas from sediment bowl . Cuts down the guessing game quick on a couple of fuel related problems .



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RobMD

11-27-2007 10:42:01




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
first of all, a sharp BLUE spark is a GOOD color spark to have.

Secondly, how's the battery and the cables? Usually you can stuff the biggest CCA 6 volt battery that you can fit in the seat and it will turn over fast enough with new cables.

How's the carb? you getting any fuel to the engine?



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Kurt_JDB

11-27-2007 10:40:55




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 Re: 1952 B won't start in reply to chadman, 11-27-2007 09:46:16  
I would start by making sure that you have a really good and clean connection of your battery and ground cables at both ends. I would also check and make syre I had a large enough (gage) cable, such as a 00.I would then try another battery, or even try to start it with a 12 volt battery. You could also open the compression petcocks, and see if you can start it with one or both ope. I assume you have checked the timing, ect. Do you have a distributer or a mag?

Kurt

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Rusty wheel

12-07-2007 18:17:30




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 Re: 1952 B won't start in reply to Kurt_JDB, 11-27-2007 10:40:55  
Howdy. If your "B" still turns over slowly, you might want to check the brushes in the starter. If they get worn down too much and don't make good contact, the starter might not get the voltage it needs to do its job. Just a thought. Take care and have a merry christmas. RW.



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