Flat spacer between fan pulley and cast support

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Sadcub
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Joined: Mon Feb 03, 2020 12:21 am
Zip Code: 76066
Tractors Owned: 1948 CUB
1948 CUB
1984 FORD 3910
Location: Millsap, TX

Flat spacer between fan pulley and cast support

Postby Sadcub » Fri Feb 21, 2020 12:01 pm

I have had the old Cub torn down for over 2 years. I usually do a good job of keeping everything together and labeled. For some reason the fan was not fitting right and the alignment was off. Looking at Cub#2 there appears to be a flat spacer that mounts between the fan/pulley assembly and cast support on the block. I am not sure if this was missing all along, or did something with it. I can't find this piece in the 49 parts book on here or in my '79 parts book. Does anyone know what this part is I am talking about and how to find a part number?

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Dale Finch
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Re: Flat spacer between fan pulley and cast support

Postby Dale Finch » Fri Feb 21, 2020 12:10 pm

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Sadcub
Posts: 37
Joined: Mon Feb 03, 2020 12:21 am
Zip Code: 76066
Tractors Owned: 1948 CUB
1948 CUB
1984 FORD 3910
Location: Millsap, TX

Re: Flat spacer between fan pulley and cast support

Postby Sadcub » Fri Feb 21, 2020 12:26 pm

It goes on the other side of the cast support, between (#2) spindle and casting on radiator side. Almost acts like a spacer that makes the fan and crank pulley line up.

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Dale Finch
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Tractors Owned: '51 Cub "Bernie" with Fast Hitch
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'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Flat spacer between fan pulley and cast support

Postby Dale Finch » Fri Feb 21, 2020 12:37 pm

If I'm not mistaken, that IS where #1 goes. There is nothing on the engine side of the slotted cast forks holding the shaft, except the nut, which is seated between the forks in the recessed slot. That nut does not turn, as you probably already know. The shaft flats (13/16") are what are turned to tighten the fan in place.
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Sadcub
Posts: 37
Joined: Mon Feb 03, 2020 12:21 am
Zip Code: 76066
Tractors Owned: 1948 CUB
1948 CUB
1984 FORD 3910
Location: Millsap, TX

Re: Flat spacer between fan pulley and cast support

Postby Sadcub » Fri Feb 21, 2020 5:39 pm

Dale-

Seems as though you are 100% correct. I had a washer and a nut in a bad labeled fan hardware, and it worked out fine. I do not know what this spacer is on my other Cub is. Clearly not factory, but it sure looks like it could be. Thanks for your help!!

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Glen
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Re: Flat spacer between fan pulley and cast support

Postby Glen » Fri Feb 21, 2020 6:40 pm

Hi,
The washer, number 1 in the parts manual pic above, goes on the fan shaft in front of the slot in the engine front cover. It is just off the shaft in the parts pic.

Below is a pic from TM Tractor of the fan, you can see the thickness of the washer in the pic.
They are about the thickness of 2 or 3 regular washers, just a guess. :)
Attachments
Cub pulley.jpg

coppersmythe
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Re: Flat spacer between fan pulley and cast support

Postby coppersmythe » Sun Mar 01, 2020 5:25 am

Sadcub wrote:Dale-

Seems as though you are 100% correct. I had a washer and a nut in a bad labeled fan hardware, and it worked out fine. I do not know what this spacer is on my other Cub is. Clearly not factory, but it sure looks like it could be. Thanks for your help!!
you never know what you will find on these cubs by previous owners . one fan of mine has a thick piece of sheet metal about a inch and a half square as the #1 washer . they ground the washer down and use it on the "nut" side , you can tighten the nut without breaking the ears on the cast fan mounting arms . works fine so i still use it . coppersmythe..........................

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Don McCombs
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Re: Flat spacer between fan pulley and cast support

Postby Don McCombs » Mon Mar 02, 2020 2:09 pm

Since no one has posted the dimensions of the spacer, here goes...
1 1/8 OD, 11/16 ID, 1/8 thick.
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coppersmythe
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Circle of Safety: Y
Location: louisiana

Re: Flat spacer between fan pulley and cast support

Postby coppersmythe » Mon Mar 02, 2020 5:27 pm

Sadcub wrote:I have had the old Cub torn down for over 2 years. I usually do a good job of keeping everything together and labeled. For some reason the fan was not fitting right and the alignment was off. Looking at Cub#2 there appears to be a flat spacer that mounts between the fan/pulley assembly and cast support on the block. I am not sure if this was missing all along, or did something with it. I can't find this piece in the 49 parts book on here or in my '79 parts book. Does anyone know what this part is I am talking about and how to find a part number?
Previous Owner Idea . On my '48 cub , factory , i doubt it . but it works
20200301_175030.jpg
"washer" was ground down to fit in the groove of the cast fan "holder"
20200301_175049.jpg
You can tighten the nut without breaking the "ears " of the mount

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Don McCombs
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Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
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1948 Farmall Super A
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Location: MD, Deep Creek Lake

Re: Flat spacer between fan pulley and cast support

Postby Don McCombs » Mon Mar 02, 2020 6:20 pm

In that application, I think I'd use a lock washer or a Nylok nut.
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Jim Becker
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Re: Flat spacer between fan pulley and cast support

Postby Jim Becker » Tue Mar 03, 2020 12:09 pm

As can be seen in coppersmythe's second photo, adding extra washers etc. causes the nut to fall short of full engagement of the shaft. The shaft needs to be very tight so this isn't good.


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