This spring I replaced water and diesel fuel deck fills.  I bought stainless
deck fills from Marine Part Depot, which is relatively inexpensive foreign
made stuff but was robust and fit the old holes nearly perfectly.  They
unscrew using one of those bronze spanner wrenches you can buy from Groco.
(I’m sure there are other wrenches that fit.)  After removing the old
chrome-plated deck fills, I gouged out some balsa coring on the inside of
the open holes, wetted the core with West System, and filled in the gouged
out areas with a West System/colloidal silica mixture.  I then used a round
sanding drum to smooth the inside surface and fit the replacement deck
fills, and I also isolated the deck screws with epoxy.  I then installed the
replacement deck fills with a good sealant.  Inside, I used Groco 1 ½”
stainless hose barbs, which is admittedly overkill.   I suspect most people
use a plastic hose barb for this purpose. 

 

It sounds like a lot of work, but it wasn’t too bad. 

 

From: Marek Dziedzic <dziedzi...@hotmail.com> 
Sent: Tuesday, September 29, 2020 2:01 PM
To: Stus-List <cnc-list@cnc-list.com>
Subject: Stus-List Re: Advice for replace/repair of worn Diesel Deck Fill
Cap

 

The chances that you might find a replacement cap are slim to none. Somehow
all the standards have changed since the original were installed.

 

I am in a similar boat; most of my fill caps are worn, not working or
temporary. I need to replace all three (water, waste and fuel).

 

Is there a recommended, good fill that is reasonably easy to install and
will not require half of the boat to be redone?

 

Marek

 

1994 C270 ”Legato”

Ottawa, ON

 

 

 

From: kelly petew 
Sent: 29 September, 2020 12:22
To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> 
Subject: Stus-List Advice for replace/repair of worn Diesel Deck Fill Cap

 

The deck fill caps on my 30-2 require a winch handle to remove.  The diesel
cap has worn to the point where the winch head [of the handle] no longer
fits well.  

Has anyone found a suitable replacement?   I see several possibilities at
Defender, but I’m concerned the threading won’t match exactly.  

 

Or, has anyone made a “plug” or insert for the deck fill, maybe a large hex
nut welded to a threaded rod?  

 

Thanks,

 

Pete Winters

Siren Song

1991 C&C30-2

Deltaville, Va.

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