I recently purchased a boat with a Force 120 and when I went to check the lower unit oil it was a greenish black and a little milky. I drained the oil and pumped in new oil then ran it at idle with the muffs a little while before draining again and refilling with fresh oil. I noticed the rubber tubing (vacuum line?) from the lower unit was cut so I plugged it as best I could. I took the boat out a few hours and now the oil is slightly cloudy but you can still see though it. Is this normal milkyness due to oil being used or am I getting more water in the lower unit? Should I replace the vacuum line? Also, should the magnetic plug be in the vent hole or the drain hole? It was in the vent hole and had a few metal shavings on it.
Thanks for helping a Force newbie.
Thanks for helping a Force newbie.