1964-66 Merc 200 20 horse spitting out grease

rynerice

Cadet
Joined
May 21, 2013
Messages
26
My outboard is spitting out a little grease where the cooling water comes out. Its not a lot.....also it gets really hot then cools down then hot then cool.....is that the grease clogging the fresh water outlet?
 

bgc

Ensign
Joined
Jul 13, 2011
Messages
980
Re: 1964-66 Merc 200 20 horse spitting out grease

"Where the cooling water comes out" Are you referring to the telltail stream coming out of the lower cowling or the hole in the midsection leg?
 

bgc

Ensign
Joined
Jul 13, 2011
Messages
980
Re: 1964-66 Merc 200 20 horse spitting out grease

Theres really only two areas you could be picking up oil and ejecting it out the telltail, he lower unit or the block. The seals could be bad in the upper section of the lower or a cracked block. The going from hot to cold to hot, when was the last time the impeller was changed?
 
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