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?
seizes in 3 minutes?
- Thread starter torobob
- Start date
bertsmobile1
Lawn Royalty
Siezes or just stops ?
Did you check your valve clearance? Unless its a kohler with the Hydraulic lifters.
it locks up, like a tight con rod?, but restarts later.
nope, it ran fine , just weak with the gasket leaking, the only change was a new gasket?
hydraulic lifters.
bertsmobile1
Lawn Royalty
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
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
PTmowerMech
Lawn Addict
Can a fly wheel magnet cause this?
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.