After leaving the motor in the 'tank' for a couple of days, an oil film developed on the water surface. There is a hole on the starboard side of the lower unit (just to the left of the fill plug for the gear case) which is oozing dark gray oil/grease.<br /><br />What is this hole for? Any ideas why it's leaking and/or how to fix it? Could water be getting into the gear case and causing the oil/grease to overflow thru this hole?<br /><br />Please advise.