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TO30 governor problem

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Author  [Modern View]

01-06-2021 17:29:33

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Working on the wife's 52 TO30. The tractor revs through the roof with the slightest pull (just a few degrees). Pulled the carb. Cleaned throughly in an ultra sonic cleaner. Blew out all passages, verified float height was correct. Put it back on tractor and adjusted the throttle and governor linkage. Air screw out 3/4 main between 1 3/4- 2 turns out Starts and idles much better but still over revs at the slightest throttle increase. Sprayed starting fluid around the carb and intake manifold looking for a possible leak. The engine stayed on idle and did not surge I removed the throttle rod between the carb and governor. The governor arm does not move when it throttles up. So tomorrow morning the front cover is coming off. Will it be obvious that it needs replaced? What should I be looking for?

Thanks in advance for your help.

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01-15-2021 04:56:38

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 Re: TO30 governor problem in reply to Relsem, 01-06-2021 17:29:33  
Hope this works You Tube

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01-08-2021 07:14:33

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 Re: TO30 governor problem in reply to Relsem, 01-06-2021 17:29:33  
Yes it will be obvious what's wrong.

Usually it will be the ball cage has broken.

Or it can be the roll pin sheared where the lever attaches to the shaft in the side of the cover.

Bad thing about the cage breaking, pieces of it will be in the pan and can make their way into the oil pump. Also examine the timing gears for chipped teeth and embedded pieces between the teeth. The pan needs to come off and cleaned, and the pick up screen removed and cleaned, the oil pump opened up and inspected, especially the pin that drives the gear.

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Dan S (NY)

01-07-2021 13:11:01

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 Re: TO30 governor problem in reply to Relsem, 01-06-2021 17:29:33  
If the governor has disintegrated behind the front cover it should be pretty obvious once you get in there. Let us know what you find.

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Tom h.

01-07-2021 13:02:36

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 Re: TO30 governor problem in reply to Relsem, 01-06-2021 17:29:33  
If you have either the IT repair manual or the Ferguson manual, follow the Governor setup process. Read it a couple of times to make sense of it then go do it.

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01-12-2021 10:04:07

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 Re: TO30 governor problem in reply to Tom h., 01-07-2021 13:02:36  
OK spent some time trying to diagnose the problem. Went through the governor adjustment process according to the manual and other posts I read on this site several times. No change. Engine raced governor didn't operate. Pulled the timing cover and replaced the governor. Old governor looked ok but one thing I noticed is that the tab on the cover was in the 2:00 position when i pulled the cover.

I installed the new governor. Was careful to make sure tab on the cover of the new governor was in the 8:00 position, put everything back together and adjusted the linkage again. Started the tractor and had the same symptom. I verified the linkage was not binding anywhere.

I started the tractor and removed the throttle yoke from the governor arm. Revved the engine and the governor arm did not move one bit. I tried again with my fingers on it and felt no resistance. Its like i didn't even put it back in. Took it for a short ride to see if it would be different under a bit of a load..Engine raced, governor didn't operate.

I did notice wear on the internal arm and some slop in the arm (see attached pic). Do you guys think the wear and the slop could be my problem? Would turning the dampening needle in a few turns help? I tried it 1 turn in from it hitting the spring reset everything and that didn't help. I'm not sure if turning it in more would posibley damage anything [img]https://forums.yesterdaystractors.com/photos/mvphoto68209.jpg[/img]

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