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D 15 governor
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ACinSC View Drop Down
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Joined: 16 Dec 2015
Location: South Carolina
Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Topic: D 15 governor
    Posted: 30 Nov 2025 at 4:48am
Pulling the disc and the engine over revved. Throttle lever also moves on its own. Have tractor in my little shop now. Pulled dist yesterday, gov shaft has a lot of play. Book says remove rad next,then gov. Anything else I need to do while I'm in there? Thanks

Edited by ACinSC - 30 Nov 2025 at 4:49am
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22253 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 30 Nov 2025 at 10:45am
Inspect for timing gear damage. Fix whatever is broken.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8708 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 30 Nov 2025 at 11:27am
....and I remember MACK saying a nicked or slightly distorted timing gear tooth will cause bad harmonics and lead to another failure....sounds reasonable. Don't cut a corner?
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Joined: 16 Dec 2015
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 30 Nov 2025 at 12:50pm
Thanks Dr Allis and Steve M
Probably just buy a new governor and be done with it.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8708 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 12:14am
Oh but wait....you have to inspect the cam and crank gear for damage also!
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Joined: 16 Dec 2015
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 3:37am
Haven't got it off yet, but I hope for minimal damage. Only ran engine a few minutes. Thanks
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Joined: 16 Dec 2015
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 16 hours 12 minutes ago at 3:02pm
Have the gov off. Ears? on the weights have been hitting the inside of the housing. Guess something is missing or broken ? I'll try to get some pics posted. Thanks

Edited by ACinSC - 16 hours 11 minutes ago at 3:03pm
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 88948 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 15 hours 6 minutes ago at 4:08pm
teardown...
Like them all, but love the "B"s.
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Joined: 16 Dec 2015
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 55 minutes ago at 5:19pm
Thanks Steve!
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Joined: 11 Sep 2009
Location: illinois
Points: 88948 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 50 minutes ago at 5:24pm
i have not reviewed all the you tube movie... Not saying the guy is 100% right.. but its a good base line for disassembly and repairs..
Like them all, but love the "B"s.
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Joined: 16 Dec 2015
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 2 minutes ago at 6:12pm
I watched it, learned a couple things. Thanks!
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Joined: 02 Feb 2017
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Joined: 12 Sep 2009
Points: 22253 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 9 hours 28 minutes ago at 9:46pm
For the record, a D-15 does not have a spring connected to the carburetor linkage. None. Just another old wives tale.
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Points: 3123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 12 minutes ago at 4:02am
Thanks Dr Allis. Any thoughts on what happened to my governor? My plan is to replace it and also the larger bushing. Not sure how to pull the small one. Thanks again everyone!
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Joined: 12 Sep 2009
Points: 22253 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 45 minutes ago at 6:29am
Probably a bad plan when you have zero tooling to do so. I've OH'd 5 or 6 of those in the last 50 years and never replaced either bushing.  The failure ?? 60 or 70 years of no one replacing the weights with new ones I'd imagine. Same old story with the 201/226 being far worse.
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