I have a 1957 18hp Johnson Sea Horse. I Changed the lower unit grease on it and used just the standard 80w-90 fluid you get at the marina. The problem is I ran the motor and now there's a white foam, which I believe is oil mixed with water seeping out a small whole on the very top of the lower unit. Right where it bolts on. I pulled the drain plug on the lower unit and the grease looks fine. What's the white foam coming out? Did I use the wrong fluid? Because it says on the side to use Hypoid oil. Could this be causing it to foam?
Thanks
Thanks