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B carb rebuild |
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2011dandd ![]() Silver Level ![]() ![]() Joined: 25 Jul 2018 Location: Northants uk Points: 106 |
![]() ![]() ![]() ![]() ![]() Posted: 07 Mar 2019 at 10:10am |
Hi guys
Finally got around to rebuild the carb on the b. I was wondering if anyone could explain something for me please. I have the zenith carb on mine and instead of having a main jet adjustment mine simply has the plug. I have no idea why ? Cheers folks hope someone can make sense of this |
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Leon n/c AR. ![]() Bronze Level ![]() ![]() Joined: 19 Mar 2013 Location: Heber Springs A Points: 175 |
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On my Zenith B carbs the plug is where you can remove or swap main jets, could also be used to drain carburetor fuel bowl. Leon
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Alberta Phil ![]() Orange Level ![]() ![]() Joined: 13 Sep 2009 Location: Alberta, Canada Points: 3888 |
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Many of the earlier 'B's had the non-adjustable power jet with the plug. The later models seem to all have the adjustable one.
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chaskaduo ![]() Orange Level ![]() Joined: 26 Nov 2016 Location: Twin Cities Points: 5200 |
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What year is the B, and what is the carb # on round brass tag riveted to the top of the carb?
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1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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2011dandd ![]() Silver Level ![]() ![]() Joined: 25 Jul 2018 Location: Northants uk Points: 106 |
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1947 English built b supplied with American parts.
It’s a dual fuel, ie petrol /tvo. I need to inspect the identification plate better as some pleb has painted it in the past. |
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HoughMade ![]() Orange Level ![]() ![]() Joined: 22 Sep 2017 Location: Valparaiso, IN Points: 706 |
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Mine is a '51 and has the nonadjustable jet. It's original.
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1951 B
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chaskaduo ![]() Orange Level ![]() Joined: 26 Nov 2016 Location: Twin Cities Points: 5200 |
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OEM Stock 1947 4 125 B (Kerosene) Zenith 161J7 906 216937-2 is what I find for your carb. I believe it is type 161J7 model 906 part 216937-2.
Edited by chaskaduo - 07 Mar 2019 at 6:01pm |
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1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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Steve in NJ ![]() Orange Level Access ![]() ![]() Joined: 12 Sep 2009 Location: Andover, NJ Points: 11926 |
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Some model Zeniths have a "fixed" jet with the plug. These were designed specifically for certain early model Tractor applications. Some, of those (depending on their P/N) can be upgraded to the later cousins that have the adjustable enrichment jet feature. I've upgraded a few customer Carbs, but I have to go by the P/N in my Zenith book. Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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2011dandd ![]() Silver Level ![]() ![]() Joined: 25 Jul 2018 Location: Northants uk Points: 106 |
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I will hopefully be able to get the part number from the carb later today!
Thanks everyone |
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2011dandd ![]() Silver Level ![]() ![]() Joined: 25 Jul 2018 Location: Northants uk Points: 106 |
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Hi
An update on the id plate number The two numbers on there are 212844 and 9706 |
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chaskaduo ![]() Orange Level ![]() Joined: 26 Nov 2016 Location: Twin Cities Points: 5200 |
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My list has that as a 1941 B or C kerosene or low grade fuel.
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1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp
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2011dandd ![]() Silver Level ![]() ![]() Joined: 25 Jul 2018 Location: Northants uk Points: 106 |
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A 1941 b ? Really
I thought it was a 1947 I will have to check the tractor serial number now to see if that also tally’s up with a 1941 could have had a carb swap at some point though I guess. Thanks |
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Gerald J. ![]() Orange Level ![]() Joined: 12 Sep 2009 Location: Hamilton Co, IA Points: 5636 |
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Should be carburetor details in the shop manual:
http://geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf Gerald J. |
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