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Antique Steel Wheel Tractors - Old Iron Lugs and Cleats

New to me McCormick 10-20


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  #21  
Old 08-19-2019, 10:01:23 PM
Oilpulled Oilpulled is offline
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Default Re: New to me McCormick 10-20

IHC guaranteed the crankshaft and main bearings for as long as the original owner owned the tractor. What other company offered such a guarantee? In Floyd Twp, Warren County, Illinois, I heard of one broken crankshaft on an F-20 when it was very highly over-sped when engine breaking on a steep hill.
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  #22  
Old 08-19-2019, 11:06:34 PM
Duey C Duey C is offline
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Default Re: New to me McCormick 10-20

And you were refreshed with a Roll'er! Makes sense on fine/steady work and fun to see. I'm not alone. A-OK if a fella never does imbibe too.
That crank looks nice all cleaned up.
How's the front main shaft bearing coming? There's an old F-20 of ours that a friend has with a noisy one that took a third trophy pulling that's coming back my way (son) very soon. This is interesting to me.
Glad that summer only slows you, it kicks me hard as of late.
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  #23  
Old 08-20-2019, 02:09:08 PM
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Default Re: New to me McCormick 10-20

Those ball main bearings get noisy from pitting caused by rust from sitting a long time without running if condensate gets on them. Ron Miller of Geneseo had a noisy 10-20 and I got him a new old stock pair of New Departure bearings from Galesburg Tractor Lug, formerly Irvin's Tractor Lug. I got a set for myself for the original Farmall of mine, too, now on my shelf.
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  #24  
Old 08-20-2019, 02:15:48 PM
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Default Re: New to me McCormick 10-20

We had a 10-20 that when you pulled sideways on the fan belt you could see the front end of the crank go up and down.
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Old 08-20-2019, 02:19:34 PM
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Default Re: New to me McCormick 10-20

when you put a pry bar under the flywheel on mine it will go up 1/8 of a inch, still runs OK .
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  #26  
Old 08-20-2019, 07:12:21 PM
JohnDeere80 JohnDeere80 is offline
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Default Re: New to me McCormick 10-20

My front bearing was okay. My back one is pretty bad. I bought new bearings. You can see the difference in build quality! I did contemplate cleaning the old ones and just re using them!
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Old 08-20-2019, 07:33:35 PM
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Default Re: New to me McCormick 10-20

the new ones on light duty will outlast us all . mine had one oil pipe plugged , rod bearing was melted. polished crank and got used insert cleaned out the mess and it runs good for show duty.
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Old 08-21-2019, 02:41:51 AM
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Default Re: New to me McCormick 10-20

Your new bearings are probably rated for electric motor service which have a life expectancy of 25,000 hours which would be over 3 years of continuous running or over 35 years running 2 hours every day.
They'll probably outlast you...…..
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Old 08-21-2019, 08:40:36 AM
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Default Re: New to me McCormick 10-20

Quote:
Originally Posted by Craig A View Post
Your new bearings are probably rated for electric motor service which have a life expectancy of 25,000 hours which would be over 3 years of continuous running or over 35 years running 2 hours every day.
They'll probably outlast you...…..
My tractors never have enough gas in them for continuous running, just ask my friends.
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  #30  
Old 08-21-2019, 09:11:49 AM
Lumbersawyer Lumbersawyer is offline
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Default Re: New to me McCormick 10-20

JD80 your new bearings are standard duty bearings. The old bearings are what's called fully loaded bearings. Notice the notch in the races to install more balls. Standard bearings are loaded with balls on one side then the cage installed to evenly space them. You are limited to how many balls can be installed without the notch. You should be able to get fully loaded bearings that are the same size as the new ones you have.
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  #31  
Old 08-21-2019, 10:40:53 AM
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Default Re: New to me McCormick 10-20

Another method of loading maximum compliment of balls in a bearing is the, "fractured race" bearing wherein the outer race had a slight notch cut on the outer diameter and then the manufacture consisted of fracturing by an expanding force inside. The outer race was then opened slightly and the balls loaded and then released, balls placed and separator installed. When using these bearings, the outer race should be press fitted into its housing. These bearings were used for some time as the tail bearing in 12,000 RPM 4 pole aircraft generators. Some of the aircraft generators have gone to 24,000 RPM 2 pole design.
The notched race bearings should be limited to applications without continuous axial side thrust.
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Old 09-21-2019, 07:51:01 PM
JohnDeere80 JohnDeere80 is offline
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Default Re: New to me McCormick 10-20

Finished wire wheeling the block, lightly honed the cylinders. Cleaned the block thoroughly and reinstalled the crank! This finally marks the 1st weekend something has gone back together!

I do have a question. The block bolts down to the frame. But what is the 2nd bolt at the flywheel end? Someone has cut them with a grinder. Is it just a locate stud for installing the engine?
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  #33  
Old 09-21-2019, 10:46:56 PM
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Default Re: New to me McCormick 10-20

Whoa, that looks real nice.
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  #34  
Old 09-21-2019, 11:49:05 PM
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Default Re: New to me McCormick 10-20

That bolt that is cut off is a pin that helps with alignment and holds the block in place. When I took my 10-20 apart they were a bear to get out and actually came out with the block after a lot of pounding and prying. I shined them up with a wire wheel and greased them before I put it back together.

Troy
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Old 09-22-2019, 11:11:54 AM
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Default Re: New to me McCormick 10-20

Ok. Perfect. I will weld on a tab or something and pull them out. Then make something similar to go back in! Thanks!
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  #36  
Old 09-23-2019, 04:11:47 AM
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Default Re: New to me McCormick 10-20

John deere80

If pulling them out works that would be great, but if it doesn't and I remember right I think those holes go through the frame so you could possibly drill them out too. I have attached a picture of what my pins looked like, when they came out with the block.

Troy
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Old 09-23-2019, 10:31:44 AM
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Default Re: New to me McCormick 10-20

Most all of those pins are threaded on top for a nut, I put a nut on them and get them to turn, after that they will usually come out.
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