looking for a cckb carb
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Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=102647
Printed Date: 31 Oct 2025 at 12:01am
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Topic: looking for a cckb carb
Posted By: coggonobrien
Subject: looking for a cckb carb
Date Posted: 01 Mar 2015 at 3:42pm
looking for a good carb to rebuild. the one on my motor does not have a return port so if I can find the correct carb cheap I will buy and rebuild otherwise I can just plug the extra port on my fuel tank.
Thanks!
David
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Replies:
Posted By: Steve in NJ
Date Posted: 02 Mar 2015 at 8:37am
Dave,
There's a guy on e-bay bustin' up a 4040 power max. He might have a carb if ya e-mail him. Didn't see it listed, but ya never know. Maybe he didn't get to partin' the engine yet... Worth a try..
Steve
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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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Posted By: coggonobrien
Date Posted: 02 Mar 2015 at 9:16am
Posted By: AcFordHawk
Date Posted: 02 Mar 2015 at 11:59am
The carbs don't have a seperate return port but have a T fitting on the fuel inlet for the supply and return lines. Haven't looked at one for a while but believe the return line side of the T fitting has a smaller hole inside as a restrictor to ensure the carb gets fuel first.
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IB (restoring), MF GC1705, MF 2705E
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Posted By: coggonobrien
Date Posted: 02 Mar 2015 at 9:19pm
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any idea what the thread size is on the carb? I'm going to run an electric fuel pump so I wouldn't think starvation would be an issue but I can always choke it off
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Posted By: Tracy Martin TN
Date Posted: 02 Mar 2015 at 9:27pm
You will need to return the excess fuel back to the tank. A tee fitting and a fuel shutoff valve will work well. HTH Tracy Martin
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No greater gift than healthy grandkids!
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Posted By: Steve in NJ
Date Posted: 03 Mar 2015 at 8:24am
I believe the inlet is 1/8 or 1/4 NPT. I'll havta' take a look at my carb and let ya know fir' sure. There's quite a few electric pumps out there that are adjustable down to like 2 psi that should work for your application. How'd ya make out with the e-bay guy? Did you e-mail him to see if he had a carb? just curious.
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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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Posted By: Ages Cat
Date Posted: 03 Mar 2015 at 11:48am
The carb is 1/8 NPT. I have (1) NOS left.
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Curt Anderson
HD3, HD5B, HD6AG,HD6B dozer, I-400,615, 616,620,720,ACP25 lift truck, 1956 D Grader, AC 540 loader, AC #84 plow, Simplicity tractors, Agco MT225, Agco 2025,
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