Yes, there are service points on the "outside of the engines." I'd call the access to that area fair but not great. Main thing is a few zincs, which are pretty easy, the raw water pump and impeller on the port side (you have to pull the pump, but you have to do that anyway to access the impeller) and the oil filter on the Stb side which I change by punching a hole in it and draining it into a milk jug.
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