Fixing a leaky lower unit seal on your outboard
Finding milky gear lube during a routine oil change is a classic sign your lower unit seal has finally given up the ghost, and it's definitely not something you want to ignore for another season. It's one of those "small part, big problem" situations. You're looking at a tiny piece of rubber and metal that costs maybe twenty bucks, but if it fails, it can take down a lower unit that costs thousands. If you've ever seen that "chocolate milk" consistency when draining your gearcase, you know exactly what I'm talking about. That discoloration is a clear signal that water has found its way past a boundary it wasn't supposed to cross. ...