So im pretty sure my 318 engine just blew today. Ive noticed over the last couple weeks oil has been pushing up threw the carb and pooling around the air filter. Today i was mowing for a while and all of a sudden it dropped rpm and white smoke started spewing out of the engine. I shut it off and let it sit for an hour and got it to start long enough to pull in the garage. It seemed to run strong and wasnt blowing any smoke.
Now im no master mechanic but i do know my way around engine bays and i am mechanically inclined. Im assuming the rings are shot on the pistons and its burning oil aka time for a rebuild. What i dont understand is why it seemed fine after i let it sit for an hour. Im looking for opinions and if i do need to rebuild what parts will i need?