I can't comment on coring but I can comment on using the right tool for the job! I invested in a step wrench and I'm glad I did. Without it, removing the old thru-hulls would have been very difficult or impossible. Even with the use of the step wrench the old thru-hulls threatened to strip, the metal was soft. My suggestion to you is wait until the fall haul out. It's been ok for 31 years it'll probably be ok for another few months. It's not a huge job or anything but don't underestimate how much time it can take .. there are *always* gotchas.
Steve Suhana, C&C 32 Toronto On Wed, May 20, 2015 at 5:40 PM, PME via CnC-List <cnc-list@cnc-list.com> wrote: > Patrick, > > I recently replaced 8 thru-hulls, 8 seacocks, and 2 transducers on my > LF38. Yes, Wally’s site is a great resource. I reamed back the coring > and filled with thickened epoxy. While the hull is cored with balsa, the > region where the thru-hulls are is cored with marine plywood. Thankfully, > removing the old thru-hulls showed dry coring, so I guess they were > originally sealed well. I found two thru-hulls with threads red and very > pitted, and they were likely close to failing. Removing the thru-hulls > are easy with the correct tool, so I suggest that you at least check all of > them. But with wet decaying backing plates, I would not wait... > > I have not gotten around to write anything up yet, but I do have a bunch > of photos tossed online: > https://www.flickr.com/photos/dreuge/sets/72157652746226231 > > > - > Paul E. > 1981 C&C 38 Landfall > S/V Johanna Rose > Carrabelle, FL > > On May 20, 2015, at 2:56 PM, cnc-list-requ...@cnc-list.com wrote: > > Date: Wed, 20 May 2015 11:18:36 -0700 > From: Patrick Davin <jda...@gmail.com> > To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> > Subject: Stus-List Are original LF38 thru hulls in contact with > coring? > Message-ID: > <CAHixY6TL3Xog-g=Nh9EVcEaxoXKmHNtpUj+fJ+4w=kug10u...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > > My first haul out is coming up in 3 weeks, just for a few days to do some > small tasks like unsticking a seized seacock and maybe installing a new > speed transducer (old Datamarine one is somewhat broken). > > I've read Wally's site cover to cover and know he redid his thru hulls > reaming out some core and filling with epoxy (and even glassing over). But > were all model years constructed without that done or did later C&Cs start > sealing their thru hulls better? It's surprising to me that they wouldn't > have protected the core out of the factory. > > Do I need to inspect all thru hulls or only prior-owner installed ones? I > might postpone this till the fall since it'll be a big job, just wondering > if it's worth pulling one now (even that I don't expect to be easy). > > If all cored C&Cs were installed with coring abutting the thruhull, I'm > surprised it doesn't sound like everyone has redone them (it looks like > only 2 or 3 people have asked about it on the list - although more may have > done it). Or is the concern overdone? From the standpoint of "don't mess > with it if it ain't broke" maybe it's better to just do nothing. Except > that the plywood backing plates are wet/decayed, so eventually I'll need to > at least do something with those (which may or may not involve replacing > the seacock and thruhull too). > > -Patrick > 1984 LF38 "Violet Hour" > Seattle, WA > > > > _______________________________________________ > > 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 > > >
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