[C320-list] Lewmar port leaks

[Troy Dunn]

Oops....you need the full web address for that site

http://www.pbase.com/mainecruising/boat_projects



On Monday, July 18, 2016, Troy Dunn <troutwarrior at gmail.com> wrote:

> Jamie
>
> There is a screw under a cover on the inside of the dog latch.   Unscrew
> the two pieces and you will find the oring on the outside piece.   Takes
> about a minute to unscrew, clean, replace the oring.  I replaced the orings
> on the cockpit windows and that seemed to fix a couple of small leaks
> there, but nothing like you are describing.   The orings can be had for $6
> or $7 on Amazon for a bag of 10.   They are 12mm ID and 2mm thick.  OD is
> hence 16mm.  Generally they are specified by ID and thickness.   If this
> works for you that would be fantastic.
>
> If like me...you have to replace the portlight I want to second that you
> will need more butyl tape around the curves than the straightaways.   I
> found that 2 passes of flat tape around the whole fixture and then a third
> pass over the curved parts (rounded?) did the trick.   If you want to err,
> err on too much, not to little.   Clean up is a snap.   Make sure you visit
> Mainsails web site and see his write up there for installing portlights
> using bed it...very good.   pbase.com    Actually if you are the handy
> type take a good look at that web site it is packed with a lot of great
> info.    Full time cruisers seem to swear by bed it.
>
> Troy
>
> On Monday, July 18, 2016, Jamie Pett <JPett at jp2architects.com
> <javascript:_e(%7B%7D,'cvml','JPett at jp2architects.com');>> wrote:
>
>> Warren  - Don't think my other message to you came through - I had a
>> small video of the offending leak attached to it.
>>
>> Having done what you suggest below a couple weeks ago, and having the
>> inner plastic frames removed, I am pretty confident the water is coming
>> through right at the latch itself, so I am interested in your 'O' ring
>> solution.
>>
>> How do you get the latch apart ? I can't see any fasteners on mine.  I
>> have what Lewmar calls the 'old style' portlights, so I suspect it is
>> exactly the same as yours...
>>
>> Is the 'O' ring on the exterior of the plexi lens ?
>>
>> I wrote to Lewmar and so far no response.
>>
>> Thanks - Jamie
>>
>>
>> Jamie Pett
>> Bella Luna #614
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On
>> Behalf Of Warren Updike
>> Sent: Monday, July 18, 2016 1:32 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Lewmar port leaks
>>
>> FYI re port light gasket on older 320s. My understanding is that the
>> gasket showing in the two slots of the external ring is actually part of
>> the whole gasket that seals the frame. Because it is exposed to the Sun, it
>> deteriorates over time. Many of us have solved the problem by tearing out
>> that visible part of the gasket and filling with a material like LifeCalk.
>> LifeCalk, like most boat adhesives, can be messy to work with. When I did
>> our port slots, I lined all four edges of each slot with masking tape, then
>> applied the (black) adhesive smoothing it out with a soft plastic scraper
>> (don't know the name, also used for smoothing boat names when applying.)
>> Once cured, and the tape removed, it looked quite good... professional even.
>> That was 4-5 years ago and still looks good and remains watertight.
>>
>> Warren and Pattie Updike
>> 1994 C320 "Warr de Mar" #62
>> Middle River, Chesapeake Bay
>>
>> -----Original Message-----
>> From: Jamie Pett [mailto:JPett at jp2architects.com]
>> Sent: Sunday, July 17, 2016 10:30 PM
>> To: C320-List at Catalina320.com
>> Subject: Re: [C320-list] Lewmar port leaks
>>
>> Ted - thanks. I re- caulked  those and unfortunately it didn't solve the
>> problem. Did what you suggested - used a small flat screwdriver and pulled
>> out the old material - you called it a gasket but I think is was a putty on
>> my boat- then re-caulked them. I used Boatlife, which was a mistake as it
>> was hard to work with but still formed a good seal.  Nevertheless , still
>> have one window leaking right at the latches.
>>
>> Warren may be on to something if there is a bad o ring at the latch that
>> would explain it.
>>
>> Sent from my iPad
>>
>> > On Jul 17, 2016, at 5:19 PM, "tharrison at innovations-plus.com"
>> <tharrison at innovations-plus.com> wrote:
>> >
>> > The window comes in two parts, a top and a bottom. Between the top and
>> > bottom right at the connection points on both sides there is a gasket.
>> > One on each side. You have to dig this out with a pick. I worked on
>> > this for
>> two
>> > years trying to stop the window leaks. Then a wise gentleman (Jeff)
>> > told
>> me
>> > about the gaskets
>> >
>> > It is most likely the source of your leak. It takes about 30 minutes
>> > per window to clean, tape and fill. Let dry for a few hours and I am
>> > done with my leaks.
>> >
>> > Ted
>> >
>> > -----Original Message-----
>> > From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On
>> > Behalf Of Jamie Pett
>> > Sent: Sunday, July 17, 2016 4:29 PM
>> > To: C320-List at Catalina320.com
>> > Subject: Re: [C320-list] Lewmar port leaks
>> >
>> > Ted - not sure what gasket you mean ? I recalled the small horizontal
>> seams
>> > on the window frame bit have not re- bedded the entire window. The
>> > water looks like it is entering at the latch.  -J
>> >
>> > Sent from my iPad
>> >
>> >>> On Jul 17, 2016, at 2:02 PM, "tharrison at innovations-plus.com"
>> >> <tharrison at innovations-plus.com> wrote:
>> >>
>> >> I had the same problem and Jeff provided my answer.
>> >>
>> >> Did you remove the gasket between the two half window frame. I pull
>> >> this out and sealed with 4200 and not a leak this year at all.
>> >>
>> >> Ted
>> >> Hull 424 1997
>> >>
>> >>
>> >> -----Original Message-----
>> >> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On
>> >> Behalf Of Jamie Pett
>> >> Sent: Sunday, July 17, 2016 1:58 PM
>> >> To: C320-List at Catalina320.com
>> >> Subject: [C320-list] Lewmar port leaks
>> >>
>> >> Help! I know there are a number of posts and I read as many as I
>> >> could find re the operable ports leaking. I have thoroughly cleaned
>> >> the glass
>> > and
>> >> cleaned the seals with Armoural.
>> >>
>> >> I have re-caulked the exterior small horizontal seams in the frames.
>> >>
>> >> I have removed the inner plastic frame covers and tightened all the
>> >> mounting screws.
>> >>
>> >> My port side  remains leaking, mostly the aft port light.
>> >>
>> >> The leaks seem to be right at the dog or bolt that holds the port
>> >> light closed. The dog seems tight and secure and I cannot figure out
>> >> even how to remove it and check it further.
>> >>
>> >> Any insight is appreciated. It rained hard last night and I got
>> >> easily a pint of water through this light, soaked the port settee,
>> >> the locker cover etc.
>> >>
>> >> Thanks - Jamie
>> >> Bella Luna # 614
>> >>
>> >> Sent from my iPad
>> >
>>
>>
>>