Crank pulley

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john2189
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Crank pulley

Postby john2189 » Tue Jun 22, 2021 5:47 pm

If I was going to put a 154 motor in my f cub, would I have to change the crank pulley to the small one? I know I have to put a pilot bearing in if the crank is drilled for it.
If I can’t sell the 154, I’ll probably part it out, haven’t decided yet. I need the room
'49 Cub (Vince)
'72 cub (Cecilia)
'41 allis B
'42 Allis B
'71 154 Cub Lo-Boy
656 Wheel Horse with 42” sickle mower
C-165 Wheel Horse
Simplicity 20 HP Sunstar
Honda 48” walk behind mower

Eugene
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Re: Crank pulley

Postby Eugene » Tue Jun 22, 2021 9:21 pm

Flywheel on rear of crankshaft. Some numbered Cub's crankshafts have been drilled for the pilot shaft. If so, you need the bushing.

Pulley on front of crankshaft. Keyed and press fit. No bushing.
I have an excuse. CRS.

Gary Dotson
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Re: Crank pulley

Postby Gary Dotson » Wed Jun 23, 2021 7:08 am

Yes, you would have to change the pulley to the smaller one, the 154 pulley is too large for the space available.

john2189
10+ Years
10+ Years
Posts: 1554
Joined: Thu Oct 26, 2006 7:17 pm
Zip Code: 44657
Circle of Safety: Y
Location: Minerva,Ohio

Re: Crank pulley

Postby john2189 » Wed Jun 23, 2021 8:41 am

Gary Dotson wrote:Yes, you would have to change the pulley to the smaller one, the 154 pulley is too large for the space available.

Ok thanks that’s what I was wondering
'49 Cub (Vince)
'72 cub (Cecilia)
'41 allis B
'42 Allis B
'71 154 Cub Lo-Boy
656 Wheel Horse with 42” sickle mower
C-165 Wheel Horse
Simplicity 20 HP Sunstar
Honda 48” walk behind mower


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