[C320-list] Portlight Replacement/Repair?
Chris Burti
clburti at gmail.com
Sun Mar 27 10:21:25 PDT 2022
It was easy enough that I forgot how I did it… I do remember that you want to be sure get plenty of material into the corners
Fair winds,
Chris Burti
Farmville, NC
From: David Wellerstein
Sent: Sunday, March 27, 2022 1:08 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Portlight Replacement/Repair?
I read that pressure should be about 25 pounds on the fasteners. Sound right?
Also, the forward Bowman trapezoidal hatch leaks quite a bit. Replacement is nearly $1000. Anyone have success with the replacement seal for about $80? Is it as difficult to get that gasket in as the Lewmar portlights, ie, impossible?
> On Mar 26, 2022, at 2:21 PM, Christian <ccaper at gmail.com> wrote:
>
> David, keep in mind the frames are aluminum, and the fasteners are
> stainless steel, so yes you could over torque them quite easily. But they
> should be snug.
>
> On Sat, Mar 26, 2022, 4:07 PM David Wellerstein <dwellers at mac.com> wrote:
>
>> Thanks for the anti-crazing tip. I will definitely get some of that!
>>
>> Just pulled the plastic interior frames and found a bunch of the fasteners
>> were quite loose. I hope you can’t over-torque them but I did go around a
>> couple of times on each port. I’ll take the hose out and see how it goes.
>> But it doesn’t look like changing them out is going to be a big deal. Just
>> some screws, cleanup and adhesive. Famous last words, right?
>>
>> Thanks again for all the feedback!
>>
>> David
>> C320 #118 Dream Catcher
>>
>> Sent from my iPad
>>
>>> On Mar 26, 2022, at 9:40 AM, Mark Hood <mark at hoodcanvas.com> wrote:
>>>
>>> Hi all, To prevent crazing on ports use 210 Polish and Cleaner. We have
>>> used it for years on all our boats and regular application stops this
>> from
>>> happening. It is made in Cambridge, MA by Summer Labs and used in
>> airports
>>> throughout the world on airplane windows to prevent this, it works. Mark
>>> Hood #809
>>>
>>>> On Sat, Mar 26, 2022 at 10:53 AM Michael Paris <mparis495 at gmail.com>
>> wrote:
>>>>
>>>> Thanks Troy. That’s good to hear. I have the rounded ended model (Lewmar
>>>> 1RE new standard) and the replacement lens itself is $100. to $120. each
>>>> because the hinges are mounted on the lens.
>>>>
>>>>>> On Mar 25, 2022, at 10:43 AM, Troy Dunn <troutwarrior at gmail.com>
>> wrote:
>>>>>
>>>>> Micheal P.
>>>>>
>>>>> We are going on six years with no discernible change in appearance.
>>>>>
>>>>> Having said that, acrylic is incredibly sensitive to exposure to
>>>> solvents.
>>>>> Over time even the fumes of chemical solvents will introduce just
>> enough
>>>>> changes to the top layer of acrylic to induce stress fractures (aka
>>>>> crazing). So, being careful using solvents near the lenses is
>> important.
>>>>> Soap and water only for cleaning.
>>>>>
>>>>> Over extended periods of time UV damage will have a similar effect.
>>>> There
>>>>> really isn’t any way to prevent that.
>>>>>
>>>>> Acrylic is relatively inexpensive and considered by most to be the best
>>>>> material for this application. If you are attempting to DIY lenses,
>> just
>>>>> be sure to buy cast acrylic. We buy ours from estreet plastics.
>>>>>
>>>>> FWIW
>>>>>
>>>>> Troy Dunn
>>>>> Hull #514
>>>>
>>>>
>>
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