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JD B stutters over rough ground

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pa_popper

04-14-2003 12:25:27

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I have a small hill on a gravel road near my house that is pretty rough. When I drive my 52 B up it and hit one of the rough spots, the tractor sputters/burps black smoke for a moment then keeps on lugging. Is this normal? Is it due to the floats jumping in the carb and momentarily cutting off the fuel flow under load?
Tractor runs just fine other wise. The rough spots are enough to jar your back and make you wish you had a float ride seat...

Thanks in advance.

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Clooney

04-14-2003 12:33:58

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Re: JD B stutters over rough ground in reply to pa_popper, 04-14-2003 12:25:27

Pa_popper, more than likely the bowl vent baffle is missing [or your carb doesn't use one]. On the later carbs Deere went to a double bowl vent baffle to alleviate that flooding when going over real rough ground. That black smoke problem you have is usually caused by fuel splashing into the vent & getting sucked into the engine...

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Lee

04-14-2003 21:12:05

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Re: Re: JD B stutters over rough ground in reply to Clooney , 04-14-2003 12:33:58

Any way to diagram or post a picture of such a double bowl vent baffle? I'll have to construct one from scratch as I doubt they would be available without buying the carb with it. Thanks for any more info on it.

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Clooney

04-15-2003 09:04:36

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Re: Re: Re: JD B stutters over rough ground in reply to Lee, 04-14-2003 21:12:05

Lee, depending the carb you have, Roberts Carb has those bowl vent baffles... Phone, (712) 262-5311 for about $1.40 each. If possible use two baffles with the openings 90� to each other...

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pa_popper

04-15-2003 11:51:00

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Re: Re: Re: Re: JD B stutters over rough ground in reply to Clooney, 04-15-2003 09:04:36

How/where is the bowl vent baffle installed? Looking at the picture at>Link

Thanks

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Clooney

04-15-2003 14:30:40

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Re: Re: Re: Re: Re: JD B stutters over rough ground in reply to pa_popper, 04-15-2003 11:51:00

pa_popper, all I have handy right now is a D carb that I have apart. The vent passage is about the same so you can see where it [they] would go [red arrow]. If you don't have any baffles now see if you can get 2 to fit with each rotated in a 90� different direction. If you have one in there now see if you can get a second one in rotated differently than the original. The carb pictured is an early carb & doesn't have any baffles in the hole. They are little hat shaped baffles with raised centers. You will need a driver to install them [a little steel tube works good]...

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pa_popper

04-15-2003 18:30:29

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Re: Re: Re: Re: Re: Re: JD B stutters over rough ground in reply to Clooney , 04-15-2003 14:30:40

thanks for the help...

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David Bacon

04-15-2003 14:17:07

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Re: Re: Re: Re: Re: JD B stutters over rough ground in reply to pa_popper, 04-15-2003 11:51:00

If you get the parts, maybe at the JD dealer to avoid shipping and handlenig expences, you will have no problem figuring out where they go.

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