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Govenor question

A

Anonymous-0

Well-known Member
I have a Super A. Heres my question. Recently, when I run the tractor after about 5 minutes the RPM starts to drop to just above an idle. I push on the throtle, no responce. I CAN go to the carb directly and move the throttle and RPMs will raise as should. There is no linkage binding, the prob seems to be in the Gov.

Are these things easy to rebuild? Do you think it just needs a cleaning inside? Is it straight forward? Any thoughts are appreciated.

Ron
 
There is a spring in the governor which, if broken, will cause the symptoms you describe.

These governors are not overly complicated, an average mechanic can work on them without much problem. If you get a Service and/or a Parts Manual, it should have a diagram of the governor disassembly to help get it back together.

After repair, follow the governor set-up procedure in the manual to get it working like a new one.

Parts are available at a Case/IH dealer.
 
And don't pull the gear that has the flyball weights on it unless you mark it carefully to get it back exactly where it was. Moving it can change the ignition timing.
 
It is straight forward and it will need more than just cleaning. I went completely through my governor, replacing pins, bushings, bearings, bumpers, plugs, gaskets, springs, etc. Check your manual for setting the timing marks and pull the gear so you can replace the parts on it too. For a list of parts you'll need, go to: https://webparts.pvassociates.net/cnh/webparts/main.php

The governor has a tendency to build up moisture and the parts will rust over time. I made a bushing removal tool and replaced the bushing/bearing in the block too. Good luck and have fun! Greg
 
I'm still ponderin' this one. The advice you're getting below on working on your governor is all good but, if it were in the governor, I'm wondering why it takes five minutes to show up. If the main spring in the governor were broken or off, I'd think it wouldn't run as it should from the time you first put a load on it by moving it. Still, being able to make it work by moving the linkage of the left side sure sounds like governor issues. Hmmm.

Have you had the carb off recently? If so, my thinking there is that you might need to resynchronize the linkage between the governor arm and the throttle arm on the carb, but will emphasize that if neither the carb nor the governor has been moved, that isn't something that slips out of adjustment.

Are you moving the tractor those first five minutes, or idling and warming it up, meaning that it doesn't bog down until you put a load on it? Or does it work right along for a bit before breaking down?
 
"There is a spring in the governor which, if broken, will cause the symptoms you describe."

If the governor spring is broken, it will NOT throttle up at all, not even at startup.

How would you explain the broken spring only giving truble after 5 minutes?????
 
"How would you explain the broken spring only giving truble after 5 minutes?????"

Can't, and didn't try to. But the symptoms after 5 minutes are the classic signs of a broken spring.

Why the 5 minute delay before "truble"?

Won't know until it gets opened up and examined will we?
 
Thanks for all the advise. Heres some more symtoms for you to ponder on. When the RPMs drop and I loose throttle responce, I can push on the brake and just before the tractor wants to stall, the gov does kick in and RPMs raise but only for a short time ( 15-30 sec) before the RPMs go slowly back down to an idle. What gives? I did adjust my carb linkage a while back to try to give me more top end RPM. Maybe that did it.
 
Still ponderin'. Can you undo the adjustment you made to the linkage back to specs and try it again? The adjustment for top end RPM is the bolt with the jam nut on top of the governor.

If you tried to up the RPM by extending the linkage rod to the carb, all you'll have done is get it to full throttle sooner and restricted the operating range of the governor. Might have somethin' to do with your problem. Might not.
 
Heres what Im going to do. My daddy always said, do the simplest things first when trying to fix cars/tractors and such. Im going to calibrate the carb linkage to the gov. as service man. instructs and see what then happens. The fact that the gov will kick in at times does not lead me to think its a spring. If symptoms persist after linkage adj. then I will take it off and inspect.

Thanks for all the help guys.
 
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