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Thank you, guys. I appreciate the feedback. The u-joints were new with the upper half SEI outdrive replacement. I followed the break-in procedure. The oil leak was a slow drip out the vent near the speedo hook-up. I caught it during winter storage in my garage last year. Pressure...
I have a 2000 Sylvan 4.3 liter Alpha One Gen Two Mercruiser with an intermittent outdrive vibration. The events leading up to the vibration are:
1. Block was replaced 3 years ago. Runs perfectly
2. Upper half of outdrive leg was replaced last spring with a new SEI section due to seal leaks...
I have a 2000 4.3 liter Mercruiser I/O. I noticed water intrusion in the crank oil upon an oil change. Changed the oil 2 more times, but still have a tan milkshake. The engine runs beautifully. Starts right up, no knocking or idling issues. I winterize by draining 5 blue stopcocks, probing...
