My first international cub

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Snuffdipper
Posts: 48
Joined: Sun Sep 27, 2020 9:29 pm
Zip Code: 78621
Tractors Owned: 1979 Ih cub
Location: Elgin, TX

Re: My first international cub

Postby Snuffdipper » Tue Oct 06, 2020 7:53 am

All good information for a newbie. Thanks I appreciate it
“The worst was the best at the time”

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Glen
10+ Years
10+ Years
Posts: 5396
Joined: Mon Mar 19, 2012 7:33 pm
Zip Code: 00000
Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
Circle of Safety: Y
Location: Wa.

Re: My first international cub

Postby Glen » Tue Oct 06, 2020 5:20 pm

Hi,
A Cub has a manual choke, you have to adjust it to the right position when the engine is cold, or the engine can stall, especially when put under a load.
There is nothing unusual about needing to use the choke when the engine is cold.
Maybe you knew that already.

If it won't run without the choke on when warmed up, the main jet in the carburetor may need cleaning.
The main jet is under a cap at the bottom rear of the Zenith carb.

Below are pages from the Cub parts manual, showing the Zenith carb.
The cap is number 18 in the pic on the 1st page, the main jet is 20.

http://www.farmallcub.info/manuals/cub_ ... 012-14.jpg

http://www.farmallcub.info/manuals/cub_ ... 012-15.jpg

They have said on here to use a screwdriver that fits the main jet well, grind a screwdriver to fit, if needed.

The float level may be wrong, and need setting.
The float level has to be right for the carb to work right.

Unless the original carb is ruined somehow, they usually say on here to clean and rebuild it, and use it again.

Below is a pic from TM Tractor showing the cap over the main jet on a Zenith carb.
There is a screen in the original fitting where the gas line attaches to, be sure it is clean. The fitting is shown in the pic below also. :)
Attachments
Cub carb Z.jpg
Cub carb Z.jpg (25.62 KiB) Viewed 177 times

Snuffdipper
Posts: 48
Joined: Sun Sep 27, 2020 9:29 pm
Zip Code: 78621
Tractors Owned: 1979 Ih cub
Location: Elgin, TX

Re: My first international cub

Postby Snuffdipper » Tue Oct 06, 2020 6:44 pm

Yes sir I took carb off today try and clean main jet. The problem is someone messed up the brass jets inside. Can’t unscrew them they broke the brass so no longer has a screw driver slot. That’s ok My new one will be in soon. I’ll throw the original in the dumpster after I put on the new one. Not worth drilling out the brass jets. But thanks again everyone for all the great advice and information
“The worst was the best at the time”

Mht
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Posts: 373
Joined: Sun Jul 08, 2018 9:02 pm
Zip Code: 27606
Tractors Owned: 1949 farmall cub(building from parts) 1950 farmall cub
1971 David Brown 880 selectamatic
Circle of Safety: Y

Re: My first international cub

Postby Mht » Tue Oct 06, 2020 7:14 pm

I wouldn’t throw that original away. If you don’t want it send it to me. I’ll pay the shipping

Snuffdipper
Posts: 48
Joined: Sun Sep 27, 2020 9:29 pm
Zip Code: 78621
Tractors Owned: 1979 Ih cub
Location: Elgin, TX

Re: My first international cub

Postby Snuffdipper » Wed Oct 07, 2020 3:42 pm

I’ll send it to you no charge just need your address
“The worst was the best at the time”

Mht
Cub Star!!
Cub Star!!
Posts: 373
Joined: Sun Jul 08, 2018 9:02 pm
Zip Code: 27606
Tractors Owned: 1949 farmall cub(building from parts) 1950 farmall cub
1971 David Brown 880 selectamatic
Circle of Safety: Y

Re: My first international cub

Postby Mht » Wed Oct 07, 2020 6:13 pm

I’ll PM you my address

Clemsonfor
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Zip Code: 29848
Tractors Owned: Yanmar YM2000
Yanmar YM186 (non running)
1952 Farmall Cub
Circle of Safety: Y
Location: Greenwood County SC

Re: My first international cub

Postby Clemsonfor » Wed Oct 07, 2020 8:20 pm

Yes!! Glad you sent it to someone. Lots of good parts still on that carb I'm sure. Was this an IH carb or zenith? Either way glad someone got it to put on a shelf to scavenge parts off it or to rebuild.

Snuffdipper
Posts: 48
Joined: Sun Sep 27, 2020 9:29 pm
Zip Code: 78621
Tractors Owned: 1979 Ih cub
Location: Elgin, TX

Re: My first international cub

Postby Snuffdipper » Wed Oct 07, 2020 8:30 pm

It’s a zenith
“The worst was the best at the time”


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