Overheating starboard side of engine

[Carl]

Thefermanator,

I replaced the soft parts of the poppit valve and ran the engine without t-stats just to see if they were creating the problem. It seems to be happening regardless.

Another crazy thought - could this be an oil issue? The previous merc I had did not have direct oil injection I just premixed. This engine had the oil pump and tank all connected so I left if assembled. Does the oil pump feed the engine between port and starboard or top middle and bottom through the carbs?

Thanks