[C320-list] Cooling system

[William Russell]

I've been noticing what appears to be steam coming from the exhaust
discharge lately.  Asked the Yanmar rep at the Annapolis boat show, who
said I should replace the exhaust elbow, and do the hose to the Aqualift
muffler box at the same time.  Does that make sense to y'all?
Where's the best place to buy those parts?  Reading previous posts, I'm
assuming this is a job I can do myself.
Bill Russell
"LIttle Wing," 1998 C320 #545
Ithaca, NY