[C320-list] Cabin Leak

[Dave Hupe]

 My worst "nagging" leak has been where I get drips from the low corner of the small Bowmar hatch in the head.  Brown-stained drips of water would show up on the head floor. This was strange, like your leak, where it didn't leak right away.....showed up after a rain.....and continued to seep for a long while.  I suspected and therefore pulled the traveler and rebeded it. I found wet mount holes.  So, I think water would gradually leak there and slowly work its way down through the cabin top (and the encapsulated wood....picking up the "staining") to the exit point at the hatch edge.  I still haven't had enough time to know for sure if that indeed was the problem, since we did this fix late in the season, then covered the boat.  Time will tell!  
I also suspected the center cover over the top, sliding hatch.  Mine was not caulked around the outside seam.  So, I caulked it and also pulled the mount screws and slathered caulk on them when reinserting them.  
We also had a seep on our starboard jib car track.  So, we rebeded that last year.  Is your small forward, starboard jib car track a possible leak source near your problem?  
Dave Hupe
1994 Cat 320 (hull #32)
Holland, MI

    On ‎Monday‎, ‎March‎ ‎26‎, ‎2018‎ ‎08‎:‎03‎:‎25‎ ‎PM‎ ‎EDT, Geof Ward <seakindly2 at gmail.com> wrote:  
 
 Last summer, I purchased Pre Vailing Wind, a 2004 Catalina 320 (#966) with
in-mast mainsail furling, and I have been frustrated by a leak in the main
cabin.  The water drips from the forward light fixture on the top of the
cabin on the starboard side – just inboard of the starboard lower chain
plate.  I re-bedded the chain plate, but it didn’t seem to make any
difference.  Most puzzling, the water continues to drip for many, many days
after a rain, so water must be collecting somewhere and dripping out over
time.  Is the in-mast furling mast a factor?  Has anyone successfully dealt
with anything like this? Any ideas would be much appreciated.

Geo F Ward
Pre Vailing Wind
seakindly2 at gmail.com