My local Merc dealer doesn't much like wasting his time on me when I come in looking for parts for my 30+ year old Model 165 Sterndrive. Since I don't have a parts catalog for my unit, I generally don't have a part number for what I'm looking for. Anyone know of a good internet/mail order source for the older stuff? How 'bout an online parts catalog or other source for tech data. I have some original vintage Merc manuals that I picked up on eBay, but they don't give part numbers.