The 2QM15 rebuild was on my C&C 29 mk1. I had since sold the C&C 29 and purchased a C&C Landfall 38 which came with, though not actually in the boat, a Yanmar 3Q30 which needed a rebuild.This is super helpful. I'm considering a rebuild of my 2QM15 in this off season. The previous owner did not do any professional work on the engine and she's in need of some serious care. Looking at your photos was this done on a Seidelmann 299 by chance?