That happened to me EXACTLY as you describe it. Broke it in and in the 4th tank after the first 7 tanks the bearing's protectove shims broke and destroyed the engine. I called CE, they told me to send it in and they sent me a brand new engine. I am in the 7th tank after the first 7 tanks and so far so good. Hope it stays that way.
Call CEN USA and deal with them, even if you pay for the shipping from and to Norway. Thei customer service makes up for their ****ty bearing in the engine.