'49 Cub - Install wear sleeve on fan drive pulley

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Flemmingth
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'49 Cub - Install wear sleeve on fan drive pulley

Postby Flemmingth » Wed Sep 12, 2018 2:30 pm

I'm replacing gaskets and seal rings on the engine.
The sealing part on the fan drive pulley is worn down 0.3 - 0.4 mm and the surface is in bad shape due to corrosion. No wonder it was leaking.
I intend to order a "fan drive pulley wear sleeve kit", stock# 472 at TM Tractor Parts.
Just wondering how the wear sleeve has to be installed ?
Best regards
Flemming Thomsen
Location: Denmark

tst
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby tst » Wed Sep 12, 2018 2:44 pm

there is a tool to drive it on, you can put the pulley in the fridge and warm up the sleeve with a heat gun, lay a piece of wood on the sleeve and drive it on

Bob McCarty
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Bob McCarty » Wed Sep 12, 2018 2:50 pm

If you do search for "sleeve installation", you'll find some pictures of how it's been done.
From the "how to" forum: viewtopic.php?f=141&t=76098
"We don't need to think more,
we need to think differently."
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John *.?-!.* cub owner
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby John *.?-!.* cub owner » Wed Sep 12, 2018 8:54 pm

If it has a bd groove, which it appears to, or depressions from the corrosion, you might want to fill the low spots with JB Weld, and when it is dry use a strip of emery cloth to smooth it out.
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Gary S. » Wed Sep 12, 2018 10:04 pm

Here are the directions for one brand of sleeves,most even come with the installation tool. Heat is not recommended. http://www.skf.com/us/products/seals/in ... index.html

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John *.?-!.* cub owner
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby John *.?-!.* cub owner » Thu Sep 13, 2018 8:18 pm

Wonder if it would help to freeze the pulley? Installation of sleeve would have to be done quickly or it would shrink too.
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Flemmingth
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Flemmingth » Mon Oct 22, 2018 2:23 pm

Gary S. wrote:Here are the directions for one brand of sleeves,most even come with the installation tool. Heat is not recommended. http://www.skf.com/us/products/seals/in ... index.html

Thanks Gary,
I chose the SKF, you are linking to.
Reason: An impressive good installation description, which made the operation simple and easy.
It's a bit expensive (approx. $ 60 excl. shipping and VAT), but worth its price - in my opinion.
Ingredients:
Pulley with worn sealing surface
2-component filler (not part of the wear sleeve package)
Speedi Sleeve
Installation tool (metal cup)
Hammer
Speedi Sleeve ingredients.jpg
Degrease the worn surface and the inside of the Speedi Sleeve with thinner.
Mix the filler and and apply all over the worn surface.
Put on the Speedi Sleeve, and the installation tool on top of it.
Throb the Speedi Sleeve in place with the hammer.
Carefully clean away ALL excess filler.
Speedi Sleeve installed.jpg
Job done !
No intermediate pic's.
The filler starts hardening from mixing starts, and if you havn't finished within 5 minutes, you are lost.
Must admit, that I'm quite happy with the result.
Best regards
Flemming Thomsen
Location: Denmark

Gary S.
10+ Years
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Posts: 172
Joined: Wed Nov 16, 2005 9:05 pm
Zip Code: 60102
Tractors Owned: '49 Farmall Cub
'59 International Lo-Boy
'48 Ford 8N family owned since new

L59 woods mower
Mott Flail mower 4'
Mott Flail mower 6'
Prewitt post hole digger with mounts for Cub and Ford
Grading and leveling blade with snow ext and hydraulic angle
Location: Algonquin Illinois

Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Gary S. » Mon Oct 22, 2018 7:08 pm

Glad it worked out for you.

Bob McCarty
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Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Bob McCarty » Mon Oct 22, 2018 7:37 pm

The seating rim is usually scored so you can remove it. I'm not sure if that's necessary or not in this application, but it's easy to do and I would guess that your instructions include that step.
"We don't need to think more,
we need to think differently."
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Flemmingth
Posts: 34
Joined: Sat May 19, 2018 5:15 am
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Tractors Owned: 1949 Farmall Cub

Re: '49 Cub - Install wear sleeve on fan drive pulley

Postby Flemmingth » Tue Oct 23, 2018 4:30 am

Bob McCarty wrote:The seating rim is usually scored so you can remove it. I'm not sure if that's necessary or not in this application, but it's easy to do and I would guess that your instructions include that step.


Hi Bob,
It's usually not necessary to remove the seating rim, but if it is, you have to pre-cut it from the outside diameter into the radius in one location.
SKF instruction does describe it, and mention that removing it imply a risk of damaging the sleeve.
I did not remove it as it don't interfere.
Best regards
Flemming Thomsen
Location: Denmark


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