Lower unit oil leak

Old Mercury

Recruit
Joined
Dec 10, 2011
Messages
1
I have 78 Mercury 200 with an oil leak that is coming from "inside" the cone of the prop where the prop connects to the drive shaft. I am assuming that there is a seal around the shaft that is bad.? When I fill up the lower unit it will run out of the top fill hole but also run out of where I described above. What is the problem? thanks for any help
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,620
Re: Lower unit oil leak

Several things on this motor, leaking upper driveshaft seal,cracked bearing carrier or damaged propshaft seal.
 
Top