Governor adjustment issues on 140

Farmall Super A, AV, 100, 130, & 140 1939 - 1973
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inairam
5+ Years
5+ Years
Posts: 2352
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
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
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Governor adjustment issues on 140

Postby inairam » Sun Jul 31, 2022 7:54 pm

I have a 130 and 2 - 140s One of the 140s I can not get the governor/carb adjusted properly.

the 130 and my 60s 140 throttle up and down very nicely and operate fine under load. The 70s 140 will not throttle all of the way down unless you push the gov to carb control rod forward. It will throttle up but It also ( by ear) does not run up as high as 130 and other 140. It does operate under load. I have adjusted the control rod to the manual several times and adjusted the high throttle limit bolt and the bumper spring

A few observations/ notes:

1) This 140 have a foot pedal the others do not have it.
2) the hand throttle will travel well past the notches on low or back but will only do about 80% to the high or forward. Some of this on the high side may be related to the foot pedal linkage.

I have had this 140 for about 2 years. When I got it it was not running and I did do some work on the governor including replacing the spring. I did not run it too much last year. This year I had some problems with rust in the gas tank and the governor control arm being bound up so I was working on cleaning the gas tank and freeing up the governor arm. So I was in the governor this year but I just removed the cover got the arm fee and put it back on.

Any suggestions?
When you only have 9 horsepower you need to know the names of all of the ponies!

Ohiowoodchuck
5+ Years
5+ Years
Posts: 84
Joined: Sat Jun 10, 2017 10:43 pm
Zip Code: 00000
Circle of Safety: Y

Re: Governor adjustment issues on 140

Postby Ohiowoodchuck » Mon Aug 01, 2022 11:30 pm

I had similar issue. I actually found the aftermarket governor spring weaker then the original spring that was 40-50 years old. I replaced it with one I ordered directly from international. I then had a issue with the foot pedal return spring. I replaced it with one from the hardware store. I then adjusted the rod from the hand throttle to the governor. After I did all this I was finally able to get my 140 to operate thru the whole rpm range.

inairam
5+ Years
5+ Years
Posts: 2352
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
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
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Governor adjustment issues on 140

Postby inairam » Tue Aug 02, 2022 6:21 am

I do remember there are a number of part numbers for the governor spring for the c-123 (including the spring for the cub governor) depending on the application. I was never sure I got the correct one. I did order one just now from Messicks - 2x Steiner's price

The return spring on the foot pedal was broken and the little clip was missing when I got the tractor. I fabbed the clip and I did get a spring from the hardware store from what was left of the spring I had. I do not think that spring is an issue but maybe I should adjust everything with that spring off and then re-attached when done. The way the linkage works the foot pedal only allows you to increase RPM from the throttle setting not decrease it but it is easy enough to take it out of the equation for troubleshooting.

My next step will be the adjust around the throttle as you suggest and replace the governor spring and then readjust the gov to carb linkage with the foot pedal spring off.
When you only have 9 horsepower you need to know the names of all of the ponies!

Ohiowoodchuck
5+ Years
5+ Years
Posts: 84
Joined: Sat Jun 10, 2017 10:43 pm
Zip Code: 00000
Circle of Safety: Y

Re: Governor adjustment issues on 140

Postby Ohiowoodchuck » Thu Aug 04, 2022 4:40 pm

That’s where I got from oem spring from also. Take the foot throttle out of the equation. Adjust the carb linkage once and make the rest of your adjustments at the governor and throttle rod. I kept messing with the carb linkage for days and finally gave up. Not until I put the new oem spring in did I get the results I was looking for.


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