Tecumseh HSK850 came apart
This was in a rather nice Toro 38420 CCR 2500. Picked it up after work, brought it home. PO said it wouldn't stay running. Got it to fire on starting fluid, so thought I'd give it a chance. Pulled the carb, cleaned it in Pine-Sol in the ultrasonic cleaner. Came out great. Put it on, buttoned it all up, added a little fuel to the tank and it fired right up. Ran great, RPMs shot up to where I thought they should be. Had hearing protection on, so couldn;t hear anything funny. RPMs climbed a bit more, then it backfired, and shut down. Tried to restart it, and it was making clunking noise, and then jammed. Turned the engine in reverse by hand, then looked down in the spit cup and found three needle bearings and a bit of aluminum.
Finally got a chance to tear it down, and I'll share the carnage. I'm not sure the jug is any good. It looks like a scratch and a few dents in the intake ports. Up until now I'd never had a negative experience with a Tecumseh engine. Anyone selling a good used HSK850?
It kinda looks like this was my fault. The linkage to the governor was not connected. Must've come loose when I was installing the carb. Feeling a bit foolish, but still thought I'd share.