I just bought a new McColluch 3505AV-16 chainsaw. Used for ONLY 4 hours and then had major problems. Dealer said not under warranty and would cost more to fix than we bought saw for. I think dealer was just trying to get rid of McColluch brand because the McColluch company filed bankruptcy. Contacted other dealers and they said they couldn't get any parts for McColluch anymore. Need all the info I can get. Thanks for your help. Sal