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Farmall A carb cleanup

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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cjet69
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Tractors Owned: Family owned: Over 30 antique tractors and 30 garden/lawn tractors
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Farmall A carb cleanup

Postby cjet69 » Sat Nov 17, 2018 9:44 pm

I couldn't get the Farmall A to fire up yesterday. I pulled the plugs and cleaned them up in the bead blaster and installed them this morning. I still had a heck of a time getting it running, but after cranking(hand crank) for 15-20 minutes it finally chugged to life. It kept wanting to flood from a leaky needle and seat so I brought it home and pulled the carb. Found lots of green goober and rust so I pulled it down, bead blasted, and reassembled it. It started on the second crank after I installed it. I got to thinking when I last opened up the carb and it s been 14-15 years ago.

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w30bob
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Tractors Owned: 1959 Farmall Cub
1939 Farmall A
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Location: Great Mills, MD

Re: Farmall A carb cleanup

Postby w30bob » Sun Nov 18, 2018 1:00 am

Explains why the switched from cast iron carb to pot metal. You got me thinking now......maybe I should pull my cast iron carb on my A and check it. Thanks for posting.

Bob

seabeelt
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Re: Farmall A carb cleanup

Postby seabeelt » Tue Nov 20, 2018 2:36 pm

What are the needle settings top and bottom left/front in the picture? Many thanks

w30bob
5+ Years
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Posts: 339
Joined: Fri Dec 08, 2017 4:58 pm
Zip Code: 20634
Tractors Owned: 1959 Farmall Cub
1939 Farmall A
1975 John Deere 301
2015 Kubota BX25DLR
1952 Dodge M37 Weapons Carrier
1955 Willys M38A1
Location: Great Mills, MD

Re: Farmall A carb cleanup

Postby w30bob » Tue Nov 20, 2018 5:47 pm

Checked my carb and it looked clean inside, no rust. I had run some Sea Foam thru it and then drained the bowl before I put it away in the shed. Stuff seems to be doing the job. Of course I probably just jinxed myself now.

;O)

regards,
bob

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cjet69
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Posts: 541
Joined: Tue Dec 30, 2014 9:02 pm
Zip Code: 00000
Tractors Owned: Family owned: Over 30 antique tractors and 30 garden/lawn tractors
Location: NW Washington

Re: Farmall A carb cleanup

Postby cjet69 » Tue Nov 20, 2018 6:01 pm

w30bob wrote:Checked my carb and it looked clean inside, no rust. I had run some Sea Foam thru it and then drained the bowl before I put it away in the shed. Stuff seems to be doing the job. Of course I probably just jinxed myself now.

;O)

regards,
bob


Good to here. We had one barrel of farm fuel that didn't get treated last year which may be what's causing the trouble.

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cjet69
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Posts: 541
Joined: Tue Dec 30, 2014 9:02 pm
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Tractors Owned: Family owned: Over 30 antique tractors and 30 garden/lawn tractors
Location: NW Washington

Re: Farmall A carb cleanup

Postby cjet69 » Tue Nov 20, 2018 6:07 pm

seabeelt wrote:What are the needle settings top and bottom left/front in the picture? Many thanks


Not sure what you are asking about. There are six pictures can you tell me which number 1-6 top to bottom?

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Stanton
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Location: Lone Jack, MO

Re: Farmall A carb cleanup

Postby Stanton » Wed Nov 21, 2018 8:41 am

Good to hear you found the problem and got it fixed.
Stanton
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seabeelt
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Tractors Owned: 1948 Farmall Cub
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Re: Farmall A carb cleanup

Postby seabeelt » Thu Dec 13, 2018 11:27 am

The fifth picture from the top. I think the top one is the idle/air adjustment and the bottom towards the front is the fuel adjustment? Looking for the settings of each. I have read the top is one turn out from the seat and the front is 1.5 turns from the seat. But then again I have heard 2.5 to four turns out for that one.
Many thanks


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