Another way to pinpoint what the gasket leaked and where is the carbon on the pistons and valves.
Carbon doesn't like coolant or water. It will tend to get cleaned away from any water in a cylinder and go the way of exhaust. #2 looks pretty clean to me I can see the emblem on the exhaust valve. I think your just looking at a head gkt. But check for warpage by sending out the head for inspection to be sure.
Change the Bolts if they are stretch bolts or you will be doing this job again. Read your manual and torque them as the book and HelloSailor said to do. You should have been able to buy a complete head set with bolts and all gkts. Also make sure the intake and exhaust surfaces are clean as water sometimes runs through the intake manifold on engines and the exhaust should go out the stern not into your cabin. That could make for a bad sailing day.
Also this thing may be getting hot. Get a new thermostat and gkt and check the impeller and all coolant lines for leaks and operation.
Best of luck
Last edited by w1651; 08-05-2010 at 01:46 PM.