Leaky Lewmar Hatch Handle

[Mdm]

After adding 1/16” weatherstripping to my hatch gaskets and tightening the dogs to avoid a repeat of a wet run up the coast i found ONE LEAK with the hose

[Michael Moradzadeh]

Today: Will reassemble with some silicone grease as recommended.

On Sun, May 17, 2026 at 7:33 AM Mdm <m...@yachtpc.com> wrote:

After adding 1/16” weatherstripping to my hatch gaskets and tightening the dogs to avoid a repeat of a wet run up the coast i found ONE LEAK with the hose

Dripping right through the handle.

Turns out the o-ring can age out. Didassembled it and found a replacement at the local Ace hardware store

[Joseph Ruzzi]

Michael,

Interesting solution.   So, you added an additional 1/16" strip to the existing gasket?   I have an issue with the opening ports on Spada's cabintop sides.  I've fully tightened the adjustment screws on the dogs, but I think the rubber has just become too compressed and has taken a set to where some of them will no longer provide a decent seal.  Do you have any information on the weatherstripping that you used?

Thanks in advance,

Joe

On Sun, May 17, 2026 at 10:33 AM Mdm <m...@yachtpc.com> wrote:

After adding 1/16” weatherstripping to my hatch gaskets and tightening the dogs to avoid a repeat of a wet run up the coast i found ONE LEAK with the hose

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Dripping right through the handle.

Turns out the o-ring can age out. Didassembled it and found a replacement at the local Ace hardware store

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[Mdm]

Sure. I applied this to the existing black compressed gaskets

https://a.co/d/09Iu34D7

Michael

Sent from my iPhone

On May 18, 2026, at 4:49 AM, Joseph Ruzzi <jmru...@gmail.com> wrote:



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[Dennis Boyd]

I too had a leaking hatch in forward head.    Gasket was compressed beyond salvage IMHO, so ended up just replacing the lid.    Our hatches on Jaywalker are too old to have the laser etching to revelve size as promoted on Lewmar web site.  so I call Defender and they gave me a phone number for Lewmar factory support in the US.  The gentlemen there helped me id the correct size.   The forward head on a J/42 is a size 00.    It came with handle preinstalled.  The Lewmar youtube channel shows how you drift out the pin and new hatch plugs in.   However,  I did find when replacing that the fiction bolt had sheared from over- tightening.   so I needed to follow up with an order for a new bolt kit.   All up it was about $400 to replace, took me about 2 months to figure it out and less than 30 mins to replace. 

Dennis

Jaywalker J/42 #6

[Todd Stevens]

Yep, in case anyone hasn’t noticed (I hadn’t) the hatches in the two heads are size 00 and the one in the aft cabin is size 10.  At first glance they look the same (to me, anyway).  (Forward cabin size 30, salon size 60.) Only my size 60 leaks and I have not figured it out.  Water seems to come out between the lens and the frame. I stopped some of it by tightening the hinge screws, but it still leaks.  For the moment, I’m sailing where it doesn’t rain much…

I’ve been trying to order replacement fly screens.  Only size 30 and up are available to order though, and at exorbitant cost.  I don’t get it - they sell them with the (even more exorbitant) trim kits in all sizes. 

Sent from my iPad

On May 18, 2026, at 09:07, Dennis Boyd <dennis....@gmail.com> wrote:

I too had a leaking hatch in forward head.    Gasket was compressed beyond salvage IMHO, so ended up just replacing the lid.    Our hatches on Jaywalker are too old to have the laser etching to revelve size as promoted on Lewmar web site.  so I call Defender and they gave me a phone number for Lewmar factory support in the US.  The gentlemen there helped me id the correct size.   The forward head on a J/42 is a size 00.    It came with handle preinstalled.  The Lewmar youtube channel shows how you drift out the pin and new hatch plugs in.   However,  I did find when replacing that the fiction bolt had sheared from over- tightening.   so I needed to follow up with an order for a new bolt kit.   All up it was about $400 to replace, took me about 2 months to figure it out and less than 30 mins to replace. 

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[Michael Moradzadeh]

Update on the weatherstripping solution.

Significant improvement, but not fully successful in a rough run down the coast....

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