Farm Equipment - Ac 190. Zenith carb work on Jd 3020?

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Ac 190. Zenith carb work on Jd 3020?

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Category: Allis Chalmers
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=151872
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Topic: Ac 190. Zenith carb work on Jd 3020?

Posted By: Jk chalmers
Subject: Ac 190. Zenith carb work on Jd 3020?
Date Posted: 06 Jul 2018 at 7:34pm

Ac190 zenith carb fitting on a Jd 3020.....??

Replies:

Posted By: Jk chalmers
Date Posted: 06 Jul 2018 at 7:35pm

Also what’s a good price for a 190 zenith carb that’s off a working tractor?

Posted By: Gerald J.
Date Posted: 06 Jul 2018 at 9:01pm

Deere used a Zenith carburetor on 3020 and 4020 sometimes. I have a collection of service bulletins and one says if you can't tune the Marvel Schebler, replace it with a Zenith. The die cast M-S used a vacuum diaphragm to operate the acceleration pump and that diaphragm tends to fail and not be included in the carb repair kit. Shoup http://www.shoupparts.com" rel="nofollow - http://www.shoupparts.com sells Zenith carbs for 3020 and 4020, and likely many other tractor parts places. They weren't cheap at Shoup the last time I looked. My gas 4020 has a Zenith carb.

Gerald J.

Posted By: DrAllis
Date Posted: 07 Jul 2018 at 6:31am

Zenith carb from a 190 is different than a 190XT. Neither one will bolt on to a Deere 3020 and work as they are configured.