Could be-but I've had the riser off for the last week and a half (the manifold was full of water when i took off the riser), and the raw water
seacock shut off. I admit I open the seacock occasionally to lubricate the impeller (but never when the starter is turning over). Didn't want to remove the impeller in case the engine
started to run away with all the crap I was putting in the air intake and I needed to cool the engine down before slamming the air cover on.
That said, haven't had any water coming out of the manifold and my crankcase oil
never turned milky. Changed it and it's still golden (the engine hasn't run longer than a few seconds since!). If water was getting in under these circumstances, I would think it would have to be through a cracked block into the crankcase, but I'm obviously no expert, and I certainly don't want to consider the latter possibility yet
I'll eliminate the last step in the fuel
system tomorrow when I can hopefully find a more experienced sailor to help me pull the injectors off and spray them into a jar. I've gone through every other part of the fuel
system from tank to the nuts on the top of the injectors.
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