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Correct Woodruf Key for Crank Shaft Pulley?

IH CUB Lo-Boy Series - 154, 184, 185 Forum -- Questions and answers to all of your Lo-Boy related issues.
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gitractorman
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Correct Woodruf Key for Crank Shaft Pulley?

Postby gitractorman » Sun May 02, 2010 7:13 pm

Does anyone know the correct key to go in the crank shaft pulley on a 154? I'm working on a friend's that wouldn't start, and turns out that the key is worn off flush with the crank shaft, allowing the pully to spin on the crank. I found a 5/16 x 3/4", but it is definitely too long and stands too tall out of the keyway on the crank. I'm heading to the hardware store in the morning, with this one marked so I have an idea, but I figure if I knew the correct size, it will take away some of the question.

Thanks,
Bill
Cub Cadets 682, 1811, 1864, Simplicity Legacy XL 4x4 Diesel with FEL, 60" mower, 50" Tiller

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Don McCombs
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Re: Correct Woodruf Key for Crank Shaft Pulley?

Postby Don McCombs » Sun May 02, 2010 7:20 pm

5/32 X 5/8 #6 according to the manual, ENG-1.
Don McCombs
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User avatar
gitractorman
10+ Years
10+ Years
Posts: 2678
Joined: Mon Oct 24, 2005 11:35 am
Zip Code: 14072
eBay ID: toysforjake
Tractors Owned: Lots of Cub Cadets!
1951 Farmall Cub
1977 IH Cub
1966 IH Cub
1965 IH Lo Boy
1964 IH Lo Boy
1949 Farmall Cub
Several IH 154 Lo Boys
1979 IH 184 Lo Boy
Simplicity 4416 Sovereign
Simplicity Conquest
Simplicity Legacy 4x4 Diesel
Mitsubishi MT180D 4x4 Diesel
Circle of Safety: Y
Location: Grand Island, NY

Re: Correct Woodruf Key for Crank Shaft Pulley?

Postby gitractorman » Sun May 02, 2010 7:23 pm

Thanks Don. That makes sense. The one I have must be a 5/32 x 3/4, because it does fit the keyway, just too long..

Thanks again,
Bill
Cub Cadets 682, 1811, 1864, Simplicity Legacy XL 4x4 Diesel with FEL, 60" mower, 50" Tiller


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