Working on my big boat.
I just installed a new SEI bravo lower due to the old one being all corroded and drain plug corroded in.
Now I have gear oil leaking out of the water intakes on the side of the new lower unit. my setup is a 1989 bravo 1. The new lower unit has the extra oil passage that I tapped and plugged.
First install I had only plugged the oil passage. Installed and Leaked
Second install I added the quad seal, thinking the plug might be leaking. Still leaking.
I am also thinking that this oil is leaking way to fast to be coming thru the threads of my 1/4" plug. When I added the quad seal that really shouldn't be needed, the leak stayed the same. Must not be coming from there.
When my original lower was on, I didn't have any leaks.
Where could this be leaking from ? Upper ?