I just got this motor and she purrs like a kitten. I did replace the impeller and it's pumping water good now. I changed the lower unit lube with some standard mercury lower unit lube I had, After the maiden voyage, I pulled the vent plug to check level...nothing came out. So, I pulled the drain plug and frothy / milk shake oil came out. So, I think I may be in for the re-seal procedure...any instructions out there? I might try to limp it along 'till winter just by changing after each outing if that would be ok. Any advice would be appreciated - thanks.