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Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Engines > Kohler Engines

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  #1  
Old 01-29-2024, 09:31 PM
Jb4249 Jb4249 is offline
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Location: Kentucky
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Default 782 Kohler engine swap

I have a Cub problem. I have a new to me 782 and it came with a stock 17hp Kohler twin, with a broken rod and hole in the crankcase. I have a Kohler M18 magnum twin to replace. While moving parts from the 17 to the 18 I find the crankshaft in the 18 in about an inch longer. Can I install some kind of shim or spacer at the end of the crank? I’m thinking this is a fairly common swap, what did you guys do? Thanks, Ted in Ky
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Old 01-29-2024, 10:24 PM
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ol'George ol'George is offline
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You have a couple of choices:
Cut the crank off and drill/thread the retention bolt hole deeper.
Install a spacer as you mentioned.
I've done both.
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Old 01-30-2024, 06:15 AM
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Sam Mac Sam Mac is offline
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You also need to do some wiring changes, the KT had power to the points the Mag doesn't need power to the ignition but it will need a ground for the Mags to shut it off. This the wiring for a Command but the Mag is the same. You could use the ignition switch for something like the 1864 part number 925-3163 or you can use a relay.
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