After a bit of trial and error I found the following work well for me:
I found orings in smaller quantities at The O-Ring Store online. They are cheap and I got a lifetime supply.
A size larger or smaller would probably still work.
On Aug 30, 2021, at 15:23, Fire Fighter via Sentoa firstname.lastname@example.org wrote:
I ordered a "bunch" of O rings from a local company for deckfill and other items (aftercooler and Groco strainer).
The company is:
19269 96th Avenue
If I have the right codes (?) the deckfills are:
Number 2-136 N70 Size: 2.00x .103 Cost: $0.29 each
Number 2-222 N70 Szie: 1.500x .139 Cost: $0.33 each
If memory serves, the deckfills are 2inch for the diesel and 1.5 inch for the waste and water (water may be 2 inch as well). I no longer own the Tug so cannot measure or access the O rings to measure. To obtain these measurements (for the first order), I sent in a sample of each O ring I wanted and the info here is from the invoice.
Being as these O rings are so inexpensive, I changed them out annually. Definitely don't want water in the fuel.
Hope that helps,
formerly Pilitak NT 37-068
From: Rick Schmidtke via Sentoa email@example.com
Sent: August 29, 2021 8:00 PM
To: South East Nordic Tugs Owners' Association (SENTOA) firstname.lastname@example.org
Cc: Rick Schmidtke email@example.com
Subject: [Sentoa] Re: Deck Fill O-rings - NT32
Also looking for the o rings, went to the fill manufacturer, but they don’t sell the o rings separately a few years ago. Hope you find a source.
Carpe Diem. 37-116. 2005
Commencement Bay, Washington
Sent from my iPad
On Aug 29, 2021, at 7:43 PM, David Carlson via Sentoa firstname.lastname@example.org wrote:
This may seem like a trivial question, but I am struggling to find the correct o-rings for the 4 deck fill fittings (diesel, waste, and water (2)) on my 2007 NT32. I bought the Perko 1.5 inch o-rings from West Marine but they were a little bit oversize for the water fill and too thin for the fuel fill.
Has anyone done the research and found the right sizes (and materials) for all 4 deck fill o-rings?
MV Dottie Jean