kohler courage 18 597 Cracked engine block

Esexauer

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Was out mowing my lawn and I heard knocking, like the engine was clogged. Turned the engine off and saw smoke and noticed oil leaking out. I found a crack in back of the engine block.

Any idea what would cause this?
 

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ILENGINE

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Counterbalance weight retaining arm broke allowing the weight to get off center and pushing out the back of the block.
 

Charlie8d

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You aren'y the first one. Do a search of, " Kohler Courage cracked engine block."
 

bertsmobile1

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IT would be the second most common failure of all small engines after oil starvation seizures
Got a Loncin, 5 x B & S & one Kohler all with counterweights through the cases this year waiting to be stripped for parts , which is about average
 
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