Hello Listers, Upon launching my boat this season (1972 30 MK I hull #79), I’ve noticed some crazing on the port side deck around the chainplate. I’ve also noticed the side deck has heaved up maybe 1/8” to 1/4” right around the chainplate. The same thing has not happened on the starboard side.
Both these things are new (not noticed last season, though they could have been there), and I’m trying to figure out what they might mean. I inspected the chainplate knee and chainplate bolting to the knee, and all that is solid as a rock. I’ve also rapped on the side deck there with a screwdriver handle, and it doesn’t sound dull or feel soft. When I bought my boat in 2016 it had the dimple in the port hull outboard of the chainplate knee, that other C&Cs have had as discussed on this list. In the first offseason or two that I owned her, I resealed her chainplate cutouts as described in a recent thread. Any thoughts on what this crazing and heaving might signify, and how I could investigate further? For now I’ve sealed over the crazing cracks with JB Weld marine epoxy, to prevent water intrusion. Thank You, Randy Stafford SV Greanadine C&C 30 MK I #79 Ken Caryl, CO