Exhaust manifold leak

[Portholme]

Hi guys

My boat goes in tomorrow to have an assessment of a leak from the core plug on the starboard exhaust manifold. It only started dripping yesterday when I ran it up on the muffs and ran flawlessly for four hours prior to that.

any idea what i should expect? New manifold???

thanks

[mmwjr]

If the plug is rotten then I would assume the manifold is as well. Also I would inspect the port side as well.

[Portholme]

thanks Mike. the boat yard just called and we agreed exactly that course of action!!