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Discussion Forum

Allis WD zenith carb

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Timber Beast

03-18-2002 16:50:37

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Anybody else ever wanted to use a zenith carb for a model boat anchor, or perhaps as a cannonball? have overhauled with a napa kit, soaked it, checked all passages, new needle & seat,and cleaned everything, and checked it twice. Tractor has an almost new sediment bulb assemble, but I checked the screen and flushed everything there just for good luck before I put it back on for the second time. Set the float level by the book and still am having fits. Talked to a man here in town( former allis mechanic ) in his 70s who said the zeniths were very picky and he often had to ignore the book and trial and error adjust until they quit running gas out. Before I remove it and monkey with it again, anybody else have any suggestions? What has your experience been? Should I get the WD running with the zenith and keep an eye out for a marvel-shebler? Any suggestions welcome, even if you are or aren't 70 years old yet. HA-HA-HA Thanks.

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03-19-2002 20:00:02

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 Re: Allis WD zenith carb in reply to Timber Beast, 03-18-2002 16:50:37  
one of the first things I do is put an in line filter on the antiques before I even try to start them saves a lot of cussen, (I'm 68)

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steve c

03-19-2002 03:35:58

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 Re: Allis WD zenith carb in reply to Timber Beast, 03-18-2002 16:50:37  
yeah I know what you are talking about. I just rebuibt zenith carb for my wc and at first it flooded out, but i adjust the float and finally it ran fine. What does the tractor do when you try to start it, does the carb flood. post back I think it is a fixable item. steve

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Timber Beast

03-19-2002 14:41:05

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 Re: Re: Allis WD zenith carb in reply to steve c, 03-19-2002 03:35:58  
In Reply. It floods back into the air intake tube on it. Will probably try to adjust float as this is where the problem most likely is I hope. It probably is a fixable item, just downright aggravating. Thanks for any suggestions guys.

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Bryan Smith

03-19-2002 05:32:01

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 Re: Re: Allis WD zenith carb in reply to steve c, 03-19-2002 03:35:58  
My Marvel Shcebler was doing the same thing - I would clean it out and in just a few minutes it would start leaking out of the air intake passage. One of the wise fellows on the list suggested that fine rust particles from the gas tank pass through the sediment strainer and cause the inlet needle valve not to close properly. I took his advice and added an in-line fuel filter ( a clear plastic one from Car Quest) and it hasn't bothered me since. Worth a try at less than $20 for filter and fittings (and a brake line to make a fuel line since I didn't want to cut the one I had).

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