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Allis Chalmers Discussion Forum

D10 Series III Governor (again)

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08-20-2018 20:08:15

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I said I was all done with the Series III D10, but after running it hot, I found an oil leak. The top bushing on the governor is dripping oil out, not too much, but enough to make a mess of the front of the tractor if allowed to continue. What I'm wondering, is if those of you with late D10s, recognize this governor top bushing arrangement. The one with the nut on it and painted is the D10s. For comparison, I shot the same photo of the type I'm used to. I'm resistant to just swapping in one of my spares until I know if this nut being on there is someone's hack to shim it, the nut doesn't turn (I won't know how or why it's in there until I pull it off) or a different case than I've ever seen, something later. Just wondering if anyone's seen this nut arrangement.
BTW, Parts manual shows a normal Governor housing with no nut on it and what I probably should do, is just swap it with one of my spares.

D10 SIII Governor Case

third party image

Normal Governor Case (either from a D14 or B, don't remember)

third party image

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08-25-2018 08:20:06

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-20-2018 20:08:15  
That was a good call, the D15 parts book has part numbers for all of them.

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08-24-2018 21:10:47

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-20-2018 20:08:15  
I said I'd document it when I pulled it. The hex head is the governor lever pivot and oiler. It is a screw-in part instead of the press fit on all I've seen before, kind of a more elegant housing that way. Parts manual, even on AGCO, does not list this part. I'm checking with AGCO, but I think this one can be salvaged. It was just a bad fit all the way around. The aluminum housing body is warped (I'll lap it and use a thicker gasket probably cork), the fitting for oiling is very loose (that's what caused the oil leak). I'm thinking thread sealer can fix the latter problem and I could have avoided taking it off. I've already put paint remover on it and repainting it will be the largest chore.

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Bob Bancroft

08-25-2018 02:06:03

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-24-2018 21:10:47  
Have you tried looking up a different model, like the D15II ?

I have no idea which one was produced the latest, or maybe production ceased on all models at the same time? But I'd be looking at on line parts for the D10, 12 and 15, or anything I could think of which used that governor. Like the forklifts, etc.

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08-21-2018 17:22:59

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-20-2018 20:08:15  
I'll document what it is when I pull it. Since the old part made the governor arm captive, possibly it indicates that you can remove the arm on the later versions.

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08-21-2018 16:44:02

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-20-2018 20:08:15  
Well darn it, that means I need to try and save it. Thanks for looking. Wonder if it's a screw in bushing replacing the old press in ones.

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Bob Bancroft

08-21-2018 17:05:47

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-21-2018 16:44:02  
I'd guess so. AC made a lot of little running changes, not necessarily documented.

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Bob Bancroft

08-21-2018 16:26:33

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 Re: D10 Series III Governor (again) in reply to YTSupport, 08-20-2018 20:08:15  
I just remembered to look at my D15II. It has that same hex area you pictured.

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