Since 2006, Ive had an oil leak that has came and went with no apparent cause. Randomly, or so it seemed, i'd find a few ounces of oil in the bilge of my boat but could never figure out where it came from.
The only thing I could determine was that If i put 11 quarts of oil in my engine, I'd find oil in the bilge after a few days of sitting with the bow of the boat up in the air. If I changed the oil and only put in 10, no oil in the bilge.
Ive had the pan off several times over the years and checked the welds at the front and rear seams of the pan for cracks-nothing.
The last time I ran my boat it was losing crankcase vacuum according to my data system and once again, I found oil in the bilge, more than ever.
I pulled the engine today and found a sweet inch-long crack running the length of my aluminum pan right in the middle of the kickout.
I guess its been there since the pan was new but it was hard to see until it grew.
Its halfway up the wall of the pan.
So now i get to fix the pan, which I'm not stoked about because the patch panel will look like shit.
Don't even get me started on the fact that they cut the pieces for the trap doors and braces inside the pan and assembled it without deburring the parts they put inside of it.