Having the cooling fins blocked by debris may be a factor. They don't fail too often on these in my world. If you post the actual model and type, I could look if a bulletin was out- or the dealer could when you get the gasket.

Thanks a lot, Tom. It's a B&S 150112-2110-B8.

Debris is certainly a factor with any shredder. My buddy and I decided to look at the gasket as a last resort, plus we heard a little whoosh of air coming from that direction. It's a fairly new engine (build date March 08), so I was surprised.

Gary

I see nothing. Should be a good repair.

Good news. Thanks, Tom. Gasket should arrive this week. Gary