Zenith carb venturi
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=176030
Printed Date: 31 Oct 2025 at 6:36am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Zenith carb venturi
Posted By: Luke114
Subject: Zenith carb venturi
Date Posted: 16 Nov 2020 at 9:52am
|
On an Allis C, Zenith carb has #216937 on the outer ring of the plate, and S906 on the inner. Venturi is trashed. How do I figure out what venturi will fit in this? Were the Marvel and Zenith carbs used interchangably on the B's and C's? Does it go by year? thanks
|
Replies:
Posted By: C in Concord
Date Posted: 16 Nov 2020 at 12:38pm
|
Parts book says its part# 223808 (or 70223808) - VENTURI (size 13). Zenith carbs 212844, 212845, & 216937 all take the same part. Sandy Lake Implement Co. is your best bet. Otherwise Alex09(WI) had a 212845 on hand that could be used a as a donor, if he still has it... Ben
------------- Leave things better than you found them. 1941 Model C (restored 2020) |
Posted By: Charlie175
Date Posted: 16 Nov 2020 at 12:40pm
|
I have only seen Marvels on B/C's D10/12's I see Zeniths Might look here: https://www.mcdonaldcarb.com/" rel="nofollow - https://www.mcdonaldcarb.com/ ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: Charlie175
Date Posted: 16 Nov 2020 at 12:42pm
|
page 4 of his Zeniths parts shows venturi's ------------- Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD |
Posted By: IBWD MIke
Date Posted: 16 Nov 2020 at 1:20pm
X-2! They have a lot of stuff.
|
Charlie175 wrote:Posted By: steve(ill)
Date Posted: 16 Nov 2020 at 1:47pm
|
The carb used on the B and C tractors could fit several different brand tractors... You change the venturi and the main jet to adjust for different displacements and rpm needed... I think the B and C tractors had a 9/16 inch bore venturi... Double check when you buy to see that you get that bore. ------------- Like them all, but love the "B"s. |
Posted By: steve(ill)
Date Posted: 16 Nov 2020 at 1:49pm
|
There were a couple years ( during the war) where marvel carbs were used on some B tractors... Dont know if the Zenith were not available, or if ALLIS was just pushing Zenith to keep the price down.
I have a list of carbs by year / model number... this is part of 1944...  ------------- Like them all, but love the "B"s. |
Posted By: steve(ill)
Date Posted: 16 Nov 2020 at 2:01pm
I believe your carb came off a 1947 KEROSENE tractor ------------- Like them all, but love the "B"s. |
Posted By: Luke114
Date Posted: 16 Nov 2020 at 4:36pm
|
Thank you for the info, everybody. Very interesting, especially about the possiblity of kerosene!!?? The tractor was not running when I got it, but its history indicates that it was running well with this carb. Whether it was original, or has had jets swapped, who knows. I will check out McDonald carb. Looks like a good resource. As an alternative, what # of Marvel carb should I look for if I can't fix the Zenith? |
Posted By: steve(ill)
Date Posted: 16 Nov 2020 at 4:51pm
|
my post above lists one of the Marvel Carbs used during the war.. ------------- Like them all, but love the "B"s. |