ive got a murray snow blower model # 627808x84 here that locked up on me.did an oil change,carb clean,new plug and a new starter,machine started and ran fine.went to start it today and the pull cord would not turn the engine over nor would the electric starter.checked to make sure it was not hydro locked and it was not.removed the belt cover and got a wrench on the engine pully shaft and it was tight.worked it back and forth and it began to move.removed the auger belt and it was still a little tight so I removed the drive belt and the engine turned over freely.removed the bottom plate from the blower and everything looks intact and all the bearings seem good.cant see anything that would make the engine bind up.what the heck would cause this malfunction? I'm going to go ahead and split the machine and see if theres any problems I can visually see.
thanks