seizes in 3 minutes?

torobob

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My 17 hp Kohler command blew the head gasket, was very hard to start for months, i guess it was leaking compression,and finally blew out and wouldn't start, new gasket in and it starts great, but engine locks up in a coupla minutes, good clean full of oil?, never burned any oil? lots of hours by last owner., its on a toro zero turn. plus I cleaned out a mouse nest in the shroud, cooling should be better? Coincidence? or am I missing something?
 

Scrubcadet10

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Did you check your valve clearance? Unless its a kohler with the Hydraulic lifters.
 

slomo

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Bet the mice caused it to overheat, warping the block and doing internal damage. Supposed to remove the top engine cover YEARLY to clean the engine cooling fins. Check your manual.

slomo
 

torobob

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Bet the mice caused it to overheat, warping the block and doing internal damage. Supposed to remove the top engine cover YEARLY to clean the engine cooling fins. Check your manual.

slomo
nope, it ran fine , just weak with the gasket leaking, the only change was a new gasket?
 

bertsmobile1

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Just the same
Rotate the engine and check the space between the coils of the inlet & exhaust valve when the valve is fully open

They should be the same
If not then one of the guides is slipping in the head and the lock up is coil bind
 

torobob

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I tore her down tonite, whew, top main bearing seized? don't get it,full of good clean oil, ran great ,but weak with head gasket leaking, of course it locks up after buying the new gasket. I bought a craftsman parts mower for the 24 hp Kohler engine, its going into the TORO.
 
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