I recently picked up a unique Toro CCR 450 with a Tecumseh LH195 (I think) that was sitting on the curb, its essentially a 38586. The recoil was stuck, so i managed to free it by squirting some PB blaster in the spark plug hole and putting a torque wrench on the crank bolt and gently rocking it back and forth. I did get it started... for about 3 seconds and then it stopped and locked up again. I was wondering what might have caused it to seize originally and the second time after i freed it... the engine was full of oil when i found it seized. If i'm able to get the engine out I want to take it apart out of curiosity, see whats going on.