Ok thanks I just wanted to double check. I just checked a lower unit from the top drain plug screw to see if it had gear oil inside. Planning to just put a new washer on and re install the plug.
You could also replace the bottom one , as long as the top screw is sealed there will only be a slight dribble come out when you remove the bottom screw. You should remove the bottom screw in any case as if there is any water in the lower unit it will come out first ........not a good thing but your better off knowing .
Ya I plan on replacing all 3 lower unit washers when I change the gear oil. I just bought this outboard and the seller said he wasn’t sure if he drained the gear oil out or not which confused me so I wanted to check it and at least see if it had oil which it did.
