Petty Officer 3rd Class
- Aug 16, 2013
4.3 v6 Yamaha sterndrive. noticed when I have my drive tilted up I have gear oil coming out of one of the holes on my lower unit. I drained the gear oil and some clear water came out first then some milky gear oil but not all of it was milky. What’s the easiest way to figure out where my leak is? I know pressure testing but how do you go about finding the leak? Do you gotta seperate the drive? Any help would be appreciated. I know this is a rare drive and probably going to be a pain in the ass to get parts for and I’m sure no one will wanna touch it so I’ll be tackling it myself.