What year and model of boat and engines? Not sure I can be much assistance, but that info should help others. Compare the front of both engines. Does one engine have an accessory such as a power steering pump that the other one doesn't? While you are checking things over, check the power steering pump fluid level. You should be able to put a wrench on the belt tensioner and pull it to see if there is a moderate amount of tension. I suppose there is a specification, but I don't have it. If the belt was coming off or is not looking good, change it. You might try using a yard stick or other straight edge to try to compare pulley alignment from one pulley to another. A significant misalignment would indicate an alternator, power steering pump, tensioner, or water pump is lose or worn. With the belt off, you might try moving or wiggling pulleys to see if something is loose. Verify all components rotate or spin freely. If they seem good, maybe it was just a belt that was going bad. You could install the new belt and run it to see if it acts up again. Hope this helps.
_________________ Surface Interval: A scuba diving term for that time between dives to relax and prepare for life's next great adventure.
Current boat: '02 FW 268 Vista Previous boat: '95 FW 190 Horizon
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