Bob,

In the 20 years I've had my C&C27, little bits of wood or twigs have got sucked into the engine cooling water intake on several occasions and lodged in unobvious places. They caused partial blockages that were hard to diagnose and are memorable for that reason. Our sailing club is small river leading into Lake Erie so there is a lot of crap being driven down steam from time to time. Count yourself lucky if you don't have that problem.

Steve Thomas
C&C27 MKIII - Port Stanley, Ontario
C&C36 MKI -  Merritt Island, Florida


   ------ Original Message ------
   From: cnc-list@cnc-list.com
   To: cnc-list@cnc-list.com
Cc: dainyr...@icloud.com
   Sent: Tuesday, July 13, 2021 11:55 AM
   Subject: Stus-List Re: PSS Stuffing Box

        Fred:

I’ve never heard or imagined anything so strange. First, the shaft seal is a good foot or more below the waterline. Pieces of wood generally float—so they would normally be near the surface of the water. And then have a piece of wood lodge between the stainless and graphite seal on top of all that! I would think the odds of that happening by natural occurrence would be astronomical.

Bob Boyer
s/v Rainy Days
C&C Landfall 38 (Hull # 230)
(Spending winters in warm places, and summers on the Chesapeake Bay)
blog: dainyrays.blogspot.com
email: dainyr...@icloud.com

On Jul 13, 2021, at 11:45 AM, Fred Hazzard via CnC-List <cnc-list@cnc-list.com> wrote:

Years ago a small piece of wood came up thru the shaft log into the bellows and wedged itself between the stainless and graphite rings. The boat sank overnight. The moral of this story is that you should periodically check the pressure of the bellows.
My stainless ring had slipped.


Fred Hazzard
S/V Fury
C&C 44

Sent from my iPhone

On Jul 13, 2021, at 6:41 AM, Marek Dziedzic via CnC-List <cnc-list@cnc-list.com> wrote:



Jeff,

As you mentioned earlier, this topic shows up every so often.

As a PSS user, I am obviously biased.

The stuck graphite face was an issue in older designs (the unvented type). The Volvo version of the dripless seal still requires burping.

I can imagine that if I were to sail around the world, I might prefer the traditional stuffing box (the maintenance is easier and the spare parts can be fabricated by a skilled blacksmith (😉)), but if you sail in the area where spare parts are generally available, the dripless solution is completely reliable.

I am happy with my dry bilge.

Marek


1994 C270 Legato
Ottawa, ON





From: Jeffrey A. Laman via CnC-List <cnc-list@cnc-list.com>
 Sent: Tuesday, July 13, 2021 9:25 AM
 To: Steve Thomas via CnC-List <cnc-list@cnc-list.com>
 Cc: Jeffrey A. Laman <jlam...@outlook.com>
 Subject: Stus-List Re: Stuffing Box




Let's exclude power boats -- an entirely different environment and demand on the hardware.


Jeff L.



















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