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54f250 
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Joined: 09 Dec 2022
Location: 47135
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 Topic: 1949 C has governor problems
Posted: 06 Oct 2024 at 3:06pm |
My C apparently jumped timing. I lost throttle control. I adjusted the timing at the distributor to no avail. The tractor runs wide open. I have removed and replaced the governor; is the any way the tractor is simply mistimed or are there other issues I should be looking at? |
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4741
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Posted: 06 Oct 2024 at 6:06pm |
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This may or may not be your problem: I have seen the small screws holding the butterfly in the carburetor come loose and cause the issue you describe.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 06 Oct 2024 at 6:10pm |
the cam shaft is gear driven to the crank shaft. The engine can not " loose timeing"... the governor has nothing to do with the timing.. all it does it control throttle max speed.
The CARBURETOR should be able to set the engine at idle or minimal speed with the throttle lever.. If the GOVERNOR is pulling the carburetor arm wide open , then you have a governor problem.. If the carburetor arm is at idle and you are running wide open , follow Pauls suggestion on the carb butterfly.
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Like them all, but love the "B"s.
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steve(ill)
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Location: illinois
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Posted: 06 Oct 2024 at 6:15pm |
to check adjustment of the governor to carb... look at these photos and follow directions.
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Like them all, but love the "B"s.
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54f250
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Joined: 09 Dec 2022
Location: 47135
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Posted: 08 Oct 2024 at 1:56pm |
Kudos, kudos, kudos!
I did not find time yesterday to work on the C but this morning I took the carburetor off and the throttle butterfly had one screw missing and the other was loose. I had pulled the spark plugs earlier and noticed they were all gasoline soaked. Same issue I'm sure. I had an almost identical carb so I removed the butterfly (it was in better condition) and put it in the old card with BOTH screws. It now starts and runs well -- and the throttle works!
Thanks again for your help.
Now what do I do about the engine surging? When I start it and run the engine above idle it surges until I engage my mower. |
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dfwallis
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Joined: 09 Mar 2023
Location: DFW
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Posted: 08 Oct 2024 at 4:40pm |
 54f250 wrote:
Kudos, kudos, kudos!
I did not find time yesterday to work on the C but this morning I took the carburetor off and the throttle butterfly had one screw missing and the other was loose. I had pulled the spark plugs earlier and noticed they were all gasoline soaked. Same issue I'm sure. I had an almost identical carb so I removed the butterfly (it was in better condition) and put it in the old card with BOTH screws. It now starts and runs well -- and the throttle works!
Thanks again for your help.
Now what do I do about the engine surging? When I start it and run the engine above idle it surges until I engage my mower. |
There is a so-called anti-surge spring that connects to the throttle rod straight up to a manifold bolt. Some here have recommended against it. It can cause more problems that its worth if not installed just right and the connection geometry isn't ideal for it's task, and whether it helps depends on the cause of the surging.
Edited by dfwallis - 08 Oct 2024 at 4:42pm
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1952 CA13092
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4741
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Posted: 08 Oct 2024 at 6:38pm |
Surging is almost ALWAYS caused by an improperly adjusted governor cross arm. On the BE/CE and the small block D series engines the carburetor link should be just a tiny bit too short to go into the hole in the cross arm at wide open hand throttle setting. This is exactly opposite from all Big Block engines (201-226) and could be the reason so many are not properly adjusted. Hence the importance of reading and understanding the service manual for the engine you're working on instead of this is what I always done on other tractors. The "Surge Spring" will not cure a severely surging engine caused by an improperly adjusted governor cross arm. Unless it isn't installed correctly as I've most often seen.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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54f250
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Joined: 09 Dec 2022
Location: 47135
Points: 12
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Posted: 17 Oct 2024 at 9:16pm |
I got around to working on the C today. I tried to adjust the carb but nothing stopped the surging. I remembered the anti-surge spring and I put a finger on the throttle rod -- lightly. The surging stopped. Because I was in a hurry and I could not access the throttle rod easily, I attached a weak spring from the governor cross arm to the front of the sheet metal as a temporary fix. It worked. I will order the correct spring and see if I can attach it properly soon. The spring may be unnecessary if everything else is in good order, but in my case it seems to be a relatively easy fix. Thanks for your help!
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