thanks guys for the advice _ yes it was oil in the lake for sure by the starboard engine after he revved the engine the mechanic said its normal...
yes "cylinder head complete" replaced any idea what can cause the oil in the water - could it be from the heads being replaced wrong or bad...
Sorry new to boating _ 4.3 volvo pentas on a cruisers yacht gas engine.
just had fuel pump and new heads and cylinder replaced - splashed boat and ran it for 30 minutes on open water and noticed smoke and fuel fumes...
