I have a 2003 200 Mercury Optimax DFI that was recently rebuilt. Threw #3 rod (long story). When the engine was shipped back to me, I placed it back on my boat and within 5 minutes noticed a loud squeek/knock and the engine shut down. The engine will run but the same noise returns and shuts the engine down. A DDT showed no faults. After much testing, I removed the reed valve plate and found that HALF of the #4 piston/rod were not getting oil. The oil injection system seems to operate properly except that it is not oiling this one cylinder completely.<br /><br />What could be causing this problem?
