Mid 90s Merc 40 hp 2 stroke 4 cyl water on #4 plug

aeclipseguy

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Joined
Mar 15, 2021
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3
I say it is water but it sure looks like water and oil mixed. The engine runs ok it does have some idle issues but not to bad.
Is it possible the lower crank seal could be leaking? Could water be pulled into the engine from the seal? With that said I do have water\exhaust leak at the bottom of the powerhead. Also bad engine mounts. I am not sure if water could enter the engine from the bottom of the engine.
Ideas?
 
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