Governor Arm Hole Wear

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DieselDennis
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Governor Arm Hole Wear

Postby DieselDennis » Tue Feb 04, 2020 8:59 pm

I have a Cub that wasn't running too good. Ran fine, but wouldn't run to full throttle. Would run to about 1/2 throttle and just hang there.

So I fashioned a pony tank so I could keep testing after I removed the hood. The tractor seems to run great on the pony tank, so maybe my initial problem was fuel related.

But while I have the hood off, I thought I would see what I could do to the governor. It has never been very responsive since I revived the tractor several years ago.

I thought I would start by seeing how much slack I could take out. I got everything out of the way and the governor spring removed. It seems that the lower arm coming off of the governor has quite a bit of wear.

What do you think of the wear in the lower hole?

What's the fix? Remove, reweld, redrlill,& reinst
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Re: Governor Arm Hole Wear

Postby Bob McCarty » Tue Feb 04, 2020 9:55 pm

Welding is probably the best fix. I did repair one by drilling a larger hole and inserting a section of roll pin.
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Slim140
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Re: Governor Arm Hole Wear

Postby Slim140 » Wed Feb 05, 2020 6:19 am

That piece is probably cast iron is why it wears there. If it is you can weld it but it may get hard and be real hard to drill.
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Stanton
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Re: Governor Arm Hole Wear

Postby Stanton » Wed Feb 05, 2020 7:39 am

Shane N. wrote:That piece is probably cast iron is why it wears there. If it is you can weld it but it may get hard and be real hard to drill.


Could it be cast steel? Believe you were the one who suggested that to me on a past Farmall AV question I had.
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Re: Governor Arm Hole Wear

Postby Slim140 » Wed Feb 05, 2020 7:42 am

Stanton wrote:
Shane N. wrote:That piece is probably cast iron is why it wears there. If it is you can weld it but it may get hard and be real hard to drill.


Could it be cast steel? Believe you were the one who suggested that to me on a past Farmall AV question I had.

It is possible, spark test time :D
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Bill Hudson
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Re: Governor Arm Hole Wear

Postby Bill Hudson » Wed Feb 05, 2020 10:35 am

Bob McCarty wrote:... I did repair one by drilling a larger hole and inserting a section of roll pin.


I, too, have done it this way and the results have been very satisfactory.

Bill
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Re: Governor Arm Hole Wear

Postby ricky racer » Wed Feb 05, 2020 11:57 am

What about drilling and tapping for a 1/4"-20 set screw? Drill point the shaft to give the set screw some additional bite....
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Re: Governor Arm Hole Wear

Postby SONNY » Wed Feb 05, 2020 12:03 pm

Not sure if you could braze it or not. If you could it would drill a bit easier. Dont think JB weld would hold very long,---never tried it.

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Stanton
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Re: Governor Arm Hole Wear

Postby Stanton » Wed Feb 05, 2020 3:08 pm

SONNY wrote:...Dont think JB weld would hold very long,---never tried it.


Agree about JB Weld. Too much friction from the spring. It would wear out very quickly.
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Re: Governor Arm Hole Wear

Postby Eugene » Wed Feb 05, 2020 4:24 pm

Thin steel tube with correct ID. Cut to length. Drill out the hole to accommodate the cut length. Solder in place.

You should be able to get the arm up to temperature with a small propane torch.

I would go with solder instead of brazing because soldering is at a much lower temperature. Brazing might distort the arm.
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Re: Governor Arm Hole Wear

Postby BIGHOSS » Wed Feb 05, 2020 4:50 pm

I agree with Bill and Bob (BILLYBOB?) roll pin is the way to go.
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Re: Governor Arm Hole Wear

Postby JimCub48 » Wed Feb 05, 2020 5:27 pm

How about J B weld the roll pin or small bushing in place. The wear would be on the roll pin or bushing.


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