Kohler K103-47446 in a CC149 piston explode

[swhitlow]

A guy I work with gave me a old 149 with no compression and he explained to me his son was mowing with it last year when all of a sudden the engine went wide open and went bang.
Long storry short would a internal govonor breaking cause a piston to explode when the engine revs so fast?
Next question is do I need to replace the govoner if I am not using it to mow with?I just want full control for riding around with no load.

Scott

 

[swhitlow]

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[stanner]

They always run their best right before they explode!!!

 

[wheinsohn]

Scott W.,
My 149 did the same thing last summer. After looking at mine when it was apart, I believe mine had the piston start to break apart before a piece finally took out the governor. Mine has wear marks on the sidewall of the bore that made me come to this conslusion. After mine went wild, I was still able to drive it to my shed but only at an idle. Anything much above that and she would run wild again.