Help with 140 governor

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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M6Scout
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Joined: Sat Feb 23, 2019 9:24 pm
Zip Code: 13337
Tractors Owned: 1970 IH Cub with 5 implements
1966 140 with Manuer bucket fast hitch & 3 impliments

Help with 140 governor

Postby M6Scout » Sat Jan 23, 2021 7:32 pm

My recent 140 purchase has No power and acts like dirty fuel filter. I replaced it & drained carb, it has a strong steady flow of gas, compression, 3 at 124 and 1 at 116 psi. With throttle wide open the engine definitely isn’t running at full throttle.
The engine manual I just bought doesn’t tell me how to check or adjust the gov. So any advice or previous thread reading would be greatly appreciated.

Thanks

M6Scout
5+ Years
5+ Years
Posts: 53
Joined: Sat Feb 23, 2019 9:24 pm
Zip Code: 13337
Tractors Owned: 1970 IH Cub with 5 implements
1966 140 with Manuer bucket fast hitch & 3 impliments

Re: Help with 140 governor

Postby M6Scout » Sat Jan 23, 2021 7:48 pm

Forgot to mention, plug wires show strong spark, new D 16 plugs & high idle jet doesn’t change engine idle at all

Nelson 634
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Zip Code: 22958
Tractors Owned: 5 Cubs
1952 100
1960 460 Utility
Location: Central Va.

Re: Help with 140 governor

Postby Nelson 634 » Sat Jan 23, 2021 8:41 pm

Pull and clean carburetor Jet.
Walter

inairam
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Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
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1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
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1979 long strip 12 v stuck engine
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Terramite T-6 4WD Backhoe Perkins diesel
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Location: Glen Mills PA

Re: Help with 140 governor

Postby inairam » Sun Jan 24, 2021 10:48 am

Can you manually pull the carb linkage and increase RPMs? Are you measuring RPM with a Tack of some sort?

I have an IH tach on one of my 140s and it is reading ~1500 which is giving the 540 at the PTO. It sounds as if more is there but it is set at max torque and 540 rpm. More is there because the c-123 in other tractors were rated at 2000 rpm
When you only have 9 horsepower you need to know the names of all of the ponies!

M6Scout
5+ Years
5+ Years
Posts: 53
Joined: Sat Feb 23, 2019 9:24 pm
Zip Code: 13337
Tractors Owned: 1970 IH Cub with 5 implements
1966 140 with Manuer bucket fast hitch & 3 impliments

Re: Help with 140 governor

Postby M6Scout » Sun Jan 24, 2021 4:51 pm

I haven’t tried the linkage by hand but I will. No tach used I know it’s not near it’s potential rpm’s. RPM’s climb and drop off just about to stall but doesn’t. I’ll rebuild the carb this week but it’s more than carb issues I’m certain it’s particularly the gov


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