I had some leaking on my 1980 version (#593) but it was from cracks in the aluminum cover at deck level. By the way, all of our early 30's are MK1's, it wasn't until the mid to late '80's that they came out with the II, which is quite different.
I pulled the chainplates out - a rather simple job as the bolts are easy to get to. Previous owners or mechanics had kept plenty of sealant under the covers, so there was minimal moisture intrusion. I cored out some balsa just to make sure, built a little dam and filled with epoxy. Then filed it out just enough to get the plate back in and reinstalled with new covers I built from stainless plate, with the same screw pattern, but a little larger than the originals to cover the glass work. I did discover that the chainplates were not centered in the boat properly (Monday AM boat?). The starboard plate was an inch closer to the center of the boat than the port one! That was part of the repair, which just consisted of drilling some new holes in the bulkhead and enlarging the thru-deck hole, and sealing with epoxy. The chainplates were in perfect shape. I did this repair over 10 years ago and have had no probems since. I did use butyl under the new covers to get a good seal. Gary Nylander 30-1 Maryland -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Ryan Doyle via CnC-List Sent: Wednesday, February 3, 2016 8:47 PM To: cnc-list@cnc-list.com Cc: Ryan Doyle <ryanpdo...@gmail.com> Subject: Stus-List Chainplate inspection/possibly re-bedding After rain recently I noticed a little rust-colored water leaking out from behind my chainplate on the port bulkhead on the interior. The chainplates themselves look shiny and new, but I'm afraid some water ingress has rusted some of the bolts through the bulkhead. I resealed where both chainplates protrude from the deck to stop any water from coming in, but I think it's time to really inspect (and possibly re-do) both chainplates. My mast is removed, and the boat is covered. I'm thinking I'm going to remove some bolts and see what's going on inside the bulkheads behind the chainplates… see if there's any rot in there. I assume these bulkheads on my 1976 30 MKI are marine ply covered in fiberglass. Has anyone does this before on a 30MK I? Any suggestions/anything I should know before I embark on this project? Thanks in advance. Ryan _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
