1950 Cub 104142 white paint

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Wingit
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1950 Cub 104142 white paint

Postby Wingit » Mon Aug 29, 2022 11:35 am

574BA202-FBFA-457D-8B63-A3D12D8B402A.jpeg


While starting to change all fluids I was under the Cub checking out a slow leak and noticed this. Would this constitute a possible demo? I will be removing the hood today to change very worn fan and generator belts. Maybe see more evidence. I would be keeping it red but just curious.
If it’s not broken continue tinkering with it and it will be.

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Barnyard
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Re: 1950 Cub 104142 white paint

Postby Barnyard » Mon Aug 29, 2022 11:46 am

Yes, it is in the demo range. Not all Cubs in the demo range were demos, but with the white paint showing I would say it was a demo.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Mon Aug 29, 2022 5:50 pm

Well got the hood off and attempted to install the new generator belt and won’t go around the fan. Ordered from Steiner and compared to the old one and seems very close. A 21 x 1/2 inch belt. Am I missing something or does the whole fan pulley assembly have to come off?
If it’s not broken continue tinkering with it and it will be.

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Re: 1950 Cub 104142 white paint

Postby SamsFarm » Mon Aug 29, 2022 5:53 pm

I changed one long time ago, but can not remember, but am curious if you found white paint up under the hood?

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Barnyard
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Re: 1950 Cub 104142 white paint

Postby Barnyard » Mon Aug 29, 2022 6:01 pm

I have replaced them without removing the fan. See if this helps.

There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Mon Aug 29, 2022 6:06 pm

Will be checking that out tomorrow. Did find more around the final drive pans.
If it’s not broken continue tinkering with it and it will be.

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Mon Aug 29, 2022 6:07 pm

Thanks Barnyard. Already watched that video. I got close but was afraid I was gonna break something if I kept on going.
If it’s not broken continue tinkering with it and it will be.

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Re: 1950 Cub 104142 white paint

Postby staninlowerAL » Mon Aug 29, 2022 6:28 pm

In case you don't know, when you loosen the fan shaft to make adjustments, DON'T attempt to turn the nut on the rear of the shaft. You have a high probability of breaking the cast fork that the nut fits in to. HOLD THE NUT if needed and using a thin open end wrench, TURN THE FAN SHAFT to loosen the fan for adjustment. Breaking the fork means the front engine cover will have to be replaced, not something you want to do if it can be avoided. JMHO Stan
EDIT: It's at about 3.00 in the video.
Last edited by staninlowerAL on Mon Aug 29, 2022 6:38 pm, edited 1 time in total.
Stan in LA (lower AL)
USAF & Reserves, Reg ARMY, ARMY NG (AL)

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Re: 1950 Cub 104142 white paint

Postby Glen » Mon Aug 29, 2022 6:55 pm

Hi,
I think the generator pulley on the fan hub in Bill's video is the newer, larger diameter pulley.
Those have a longer generator belt, and they come off over the fan blades.

The 1950 Cub has the smaller gen drive pulley on the fan hub, those have a shorter gen belt than the newer uses.

The 1950 Cub owner's manual tells how to remove the gen belt, it has to go off over the rear of the pulley, after removing the fan assembly from the slot.
The belt is evidently too short to go over the fan blades.
I think someone on here said before he couldn't get the belt for the small pulley off over the fan blades.

Below is the page from the manual.

http://farmallcub.com/rudi_cub/www.clea ... e%2036.jpg

The page below shows the belt tension for both belts, at the upper right of the page.

http://farmallcub.com/rudi_cub/www.clea ... e%2027.jpg

IH changed the size of the gen drive pulley on the fan hub at Cub serial number 165153.
The fan could have been replaced with a newer one, then it would have the larger pulley.

Below are pics from TM Tractor of the 2 fan assemblies showing the gen drive pulleys.
The 1st is the smaller.
The 2nd is the larger. :)
Attachments
Cub fan .jpg
Cub fan 3.jpg

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Glen
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Re: 1950 Cub 104142 white paint

Postby Glen » Mon Aug 29, 2022 7:14 pm

You could oil the fan hub, while you have the hood off.
If it is low on oil, the bearing can wear, or the fan can seize up.

While you have the fan off of the engine, you could take it out, if it will come out, and change its oil.
Its oil can't be changed while it is on the engine, just more oil put in.

Remove the fan assembly and turn it with its rear side down, and the oil should run out.
There is no oil seal at the rear of the shaft.
Page 28 in the 1950 Cub owner's manual I posted for you at the Introduce Yourself page tells how to put oil in the fan hub.
I use a pump oil can to put oil in the hub.
The hub uses clean motor oil.

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Mon Aug 29, 2022 8:05 pm

Thanks Glenn. Mine is the smaller so I guess the fan assembly will be coming off.
Thanks Stan for the warning on shaft removal.
Thanks All of you for your advice and input.
If it’s not broken continue tinkering with it and it will be.

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Tue Aug 30, 2022 4:11 pm

2CEF3615-63FC-46B8-BAE8-417BA69459DB.jpeg
B1E13D45-4629-421A-88B8-E8A59B4C7EE6.jpeg


While trying to get the fan and generator belts on (what a freaking job) had to losen the upper portion of the shroud in order to get the belts over the fan assembly shaft. More evidence of white paint.
If it’s not broken continue tinkering with it and it will be.

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Glen
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Re: 1950 Cub 104142 white paint

Postby Glen » Tue Aug 30, 2022 6:35 pm

Hi,
It looks like you found white paint.

I noticed in your pic above that one of the front hood brackets is evidently broken off the hood.

Below is a listing for the brackets at TM Tractor, it has pics of where the brackets go.
They are welded on the hood.
Maybe you knew already. :)

http://www.tmtractor.com/new/fl/827fp.htm

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Wingit
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Re: 1950 Cub 104142 white paint

Postby Wingit » Wed Aug 31, 2022 7:54 am

Good eye Glen. So consumed with everything else going on under there I didn’t even notice. I’m sure the wiring has been there since day one.
If it’s not broken continue tinkering with it and it will be.

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Wingit
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Tractors Owned: 1950 Cub Demo
MF 216
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Re: 1950 Cub 104142 white paint

Postby Wingit » Wed Aug 31, 2022 4:35 pm

C7B4E501-1B49-4CBF-B6BA-4B75856E199F.jpeg


Changing the transmission fluid on the new to me cub. Looks like a bit more than 3 1/2 pints.
If it’s not broken continue tinkering with it and it will be.


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