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    1993 Mercury 40hp Classic Water in Bottom Cylinder and Crankcase

    I found a post by emckelvy to remove the end cap. How do I clean and protect the inside of the engine? Thanks for the help guys!
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    1993 Mercury 40hp Classic Water in Bottom Cylinder and Crankcase

    Any tricks to getting the crankshaft end cap off? I got the 3 bolts loose and tapped it with a wooden stick and a hammer but I am leary of hitting it too hard. Also, no emulsified oil and water around or in the end cap. Still change the seals? The powerhead gasket has what seems to be a lot of...
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    1993 Mercury 40hp Classic Water in Bottom Cylinder and Crankcase

    The crankshaft seal(s)?
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    1993 Mercury 40hp Classic Water in Bottom Cylinder and Crankcase

    Compression is 125-125-120-120 Here are pictures of the exhaust baffle.
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    1993 Mercury 40hp Classic Water in Bottom Cylinder and Crankcase

    I have a 1992 Mercury 40hp Classic 2 stroke 4 cylinder that ran great last year. This year it was hard to start. I found water on the spark plug for the bottom cylinder and removed the exhaust cover and found milky water in the crankcase. How do I determine where the failure is? How do I clean...
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    97 Mercury 40hp 2 stroke leaking water and exhaust.

    How did you make out? I have the same engine and have good compression (120-125) but showing water on #4 spark plug. Thanks Pete
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