cavitation plate hole

rstam88

Recruit
Joined
Aug 23, 2011
Messages
2
I have a 1958 Johnson 7.5 hp AD-12. I noticed a very small hole in the underside of the cavitation plate from which lower drive oil seeps if I tilt the motor while carrying it. Is this normal, some kind of overflow?
 

nwcove

Admiral
Joined
May 16, 2011
Messages
6,293
Re: cavitation plate hole

you sure its gear oil? ...not just unburnt oil from the exhaust sys? if gear oil runs out.....water gets in.
 

rstam88

Recruit
Joined
Aug 23, 2011
Messages
2
Re: cavitation plate hole

Thanks for your reply. My second choice was un-spent 2 cycle oil from the exhaust. I'm not sure of the purpose of that hole. It is very small and I've never noticed it before. Could be oil from the exhaust.
 
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