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H mixture issues

Farmall H, HV & Super H, 300 & 350, 1939-1958
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Bowen
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Joined: Mon Jan 24, 2011 11:10 pm
Zip Code: 21921
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47 H
39 JD B
48 Massey-Harris 22
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Location: Elkton, MD

H mixture issues

Postby Bowen » Tue Mar 08, 2011 12:07 am

When setting the mixture on my '47 H, I can put the needle in to get a rough run on the lean side but after 1 1/2 turns out from seated, I can continue to turn out and it won't get too rich. It simply runs until the needle is removed completely. The packing isn't real snug.

It has a carb kit rebuild on it.

Is there a small passage in carb that has been overlooked? Is the loose needle packing affecting it? Are some of these so forgiving that over-rich doesn't change it much?

It sputters alittle at idle but runs smooth when throttled up or with any kind of load on it.

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Eugene
Team Cub Mentor
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Joined: Fri Jul 02, 2004 9:52 pm
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Circle of Safety: Y
Location: Mo. Linn

Re: H mixture issues

Postby Eugene » Tue Mar 08, 2011 9:37 am

http://www.cleancomputes.com/Cub/Blue%2 ... System.htm

Above IH carburetors with pictures/sketches of internal plumbing/passages.

Edit: Thinking partially blocked passage in the idle system.
I have an excuse. CRS.

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KETCHAM
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Tractors Owned: 47 Cub 48 Cub 50 H
Location: Marshallville Ohio
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Re: H mixture issues

Postby KETCHAM » Wed Mar 09, 2011 9:58 pm

Ya fix it??? Good carb kit or cheepie??? Kevin It does matter. :shock: :shock:
47 CUB[Krusty] 49 CUB[Ollie] 50 H-- PLOWS DISCS MOWERS AND lots more stuff!!Life is to short -Have fun now cause ya ain't gonna be here long!!!!


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