Hi everyone. I have a 2009 Bayliner 175 with a 3.0L Mercruiser Sterndrive. I was out on the water Friday night and the engine stalled out of nowhere. Didn't make any weird noises, just kind of lost power fairly quickly and stopped running. Haven't been able to get it started since. I then went and checked on it during the day on Saturday, and I found a lot of oil in the Bilge. Hard to say how much because there was definitely water in there too, but I checked my oil level on my dipstick and I was just below the operating level.
Worst case scenario with a non-running engine and oil loss would most likely be a cracked block or thrown rod based on my novice understanding. However, I have a couple of other ideas I want to get second thoughts on:
1. Timing chain. What are the odds that the timing chain broke and cracked the TC cover, letting oil out?
2. Oil Pressure Sending Unit. Would a faulty oil pressure sending unit (on a 2009 Mercruiser 3.0L) cause an engine to stall and then not fire back up?
I'm also wondering if I might have two independent issues. Based on the way the engine stalled, my first instinct was fuel pump. So it's possible there's just an oil leak somewhere as well. I'll also add in that when I attempt to start the boat now, it cranks like normal, and even almost fired up a couple times on Saturday. If the engine was damaged, I assume it would still start and run, just sound terribly. If the engine was destroyed, I assume the flywheel would be locked and nothing would happen when I turn the key.
Anyone have any advice/insights here? Thanks in advance--this is my first post here!
Worst case scenario with a non-running engine and oil loss would most likely be a cracked block or thrown rod based on my novice understanding. However, I have a couple of other ideas I want to get second thoughts on:
1. Timing chain. What are the odds that the timing chain broke and cracked the TC cover, letting oil out?
2. Oil Pressure Sending Unit. Would a faulty oil pressure sending unit (on a 2009 Mercruiser 3.0L) cause an engine to stall and then not fire back up?
I'm also wondering if I might have two independent issues. Based on the way the engine stalled, my first instinct was fuel pump. So it's possible there's just an oil leak somewhere as well. I'll also add in that when I attempt to start the boat now, it cranks like normal, and even almost fired up a couple times on Saturday. If the engine was damaged, I assume it would still start and run, just sound terribly. If the engine was destroyed, I assume the flywheel would be locked and nothing would happen when I turn the key.
Anyone have any advice/insights here? Thanks in advance--this is my first post here!
