My boat mech. moved this year and I wasn't able to diwinterize my boat before he left. I have a 2009 Volvo Penta 4.3 GL/SX and I need help finding the last drain plug petcock. The ones I have found are the 2 exhaust petcocks/plugs, the plug on the starter side totalling 3. I read that there was an additional one on the other side of the block, but I can't seem to find it. I checked out this forum and the folks here seem to know what they are talking about. PLEASE HELP.