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Hi, has anyone had any success with removing the head cover from a merc 500 without having to remove the whole block ?<br /><br />It's a 1969/70 Merc 500, 4 cylinder and has a little hole in the middle of the thread of the top spark plug that is causing lots of water to exit at the base of the...
Hi, <br /><br />I have and older Merc 500 50hp outboard (around 69-71 model) and it's dribbling out water around the base of at least two of the spark plugs. Is this bad news ? <br /><br />What is the likely cause of this and what is involved in repairing it ?<br /><br />Thanks in advance.