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Zenith carb |
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
![]() ![]() ![]() ![]() ![]() Posted: 03 Feb 2021 at 4:07pm |
What's everyone's experience/opinion on the Zenith carb on a 170? Are they better/worse than the M-S on a 175? How about parts availability comparison? Has anyone put the 175 carb on a 170, and if so, what needed to be changed to make it work? Thanks for any input!
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FREEDGUY ![]() Orange Level Access ![]() ![]() Joined: 15 Apr 2017 Location: South West Mich Points: 5396 |
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I'm now curious as to why you think 1 "might" be better than the other
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
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Well, a couple reasons, I don't have any experience with a Zenith carb, I need a new main jet needle assy., and I haven't seen it offered anywhere either. Saw a couple on ebay, but not sure if they are correct. Haven't tried NAPA for this yet. Also wondering why they put the M-S on the 175, is it a bigger carb than the Zenith? M-S more reliable? More questions than anything right now is all.
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DrAllis ![]() Orange Level Access ![]() Joined: 12 Sep 2009 Points: 21681 |
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The Marvel is technically larger because it flows more air. Why they didn't use a larger Zenith ?? I don't know. Can't answer you that one, Bunky.
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AC7060IL ![]() Orange Level ![]() Joined: 19 Aug 2012 Location: central IL Points: 3506 |
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This is a web link to napaonline.com from a Brookings, SD Napa store for a 1968 AC One-Seventy zenith carb kit priced at $44.99
Hope this helps. https://www.napaonline.com/en/p/BK_S66443?partTypeName=Carburetor+Kit&impressionRank=1&keywordInput=carburetor |
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
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Thanks for the replies and the link, Gentlemen! Alex09 has a needle assy., so I'm going to put the kit in that I already have and try it out. This tractor sat for a long time and the inside of the bowl is pitted, I had it cleaned in an ultrasonic cleaner as well, so will see how it works. I see ASAP and YT both have rebuilt Zenith carbs for sale, but haven't dealt with either on carbs, anyone have experience with this?
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WF owner ![]() Orange Level ![]() Joined: 12 May 2013 Location: Bombay NY Points: 4971 |
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There are several vendors that support this site that will have carburetor kits priced competitively.
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
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Just a heads up for anyone else using the NAPA kit in the above link, it is not correct for the Zenith 13294 carb on the 170. Hopefully not stepping on anyone's toes, that's not the intention. Just trying to save someone else the hassle of finding out the hard way is all.
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Fred in Pa ![]() Orange Level ![]() Joined: 13 Sep 2009 Location: Hanover Pa. Points: 9210 |
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I have kits ,floats n main adjusting needle jet for them .
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He who dies with the most toys is,
nonetheless ,still dead. If all else fails ,Read all that is PRINTED. |
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
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Would you have a new throttle shaft? That's part of the reason I thought I'd try the NAPA kit as it had a new throttle shaft in it.
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DrAllis ![]() Orange Level Access ![]() Joined: 12 Sep 2009 Points: 21681 |
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A 170 carb throttle shaft is unique to a 170 Zenith carb because it is mounted backwards on the engine.
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DCAC ![]() Orange Level ![]() Joined: 20 Oct 2018 Location: east central SD Points: 511 |
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The throttle shaft on this one is worn, but maybe it'll be good enough to get the tractor to run. Engine was stuck when I got it, have since gotten it loose, along with a couple stuck valves. The carb must've sat with fuel and water in it too, as it's pitted some in the bowl area, main jet needle was rusty and pitted too. Hopefully the rest of the tractor turns out good when I get it back together.
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Fred in Pa ![]() Orange Level ![]() Joined: 13 Sep 2009 Location: Hanover Pa. Points: 9210 |
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I have a local guy make the shaft , put the leaver off old one on new shaft.
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He who dies with the most toys is,
nonetheless ,still dead. If all else fails ,Read all that is PRINTED. |
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