1960 merc 300 water pump?

G

green horn

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Joined
Jul 11, 2006
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1
I have replaced the seals in my lower unit. It is over heating now. I turned the wp/ cartridge ass around and it got worst. The wp/ cartridge "O" ring is not the correct size. It is a bit to big. Could this cause the water pump not to pump well? And a little oil is getting back into my lower unit.

Thanks, Bob
 
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