Hello, I am new to working on boats and am looking for a little help. Last week I replaced the exhaust hose and bellow on one side of the engine due to the old one being split. After 10 minutes of run time the new bellow is burnt inside and blown apart. There was water spraying out when the old one was torn so I assume the manifold is working correctly. My initial thought was clogged y pipe, but why is it burnt?