I have had both stuffing boxes and dripless on both of my C&C's. I just
changed over our C&C 35-3 to a dripless and would not go back. Both a
standard stuffing box and dripless have the same basic weaknesses being
the hose.
My last years of Engineering was in the Aerospace Hydraulics business.
We used carbon/steel and bronze/tungsten carbide seals for our electric
motor pumps. These ran at much higher speeds than out propeller shafts.
I have had both vented and non-vented dripless shaft seals. I only
burped the seal at launch on the spring and found it easier than
adjusting the packing nut with the stuffing box leaked. The dripless on
out C&C 35-3 is the vented variety and I have never burped it.
Neil Schiller
1983 C&C 35-3, #028, "Grace"
Whitehall, Michigan
WLYC
On 12/10/2019 2:48 PM, David Knecht via CnC-List wrote:
I second David’s comment. I had a dripless on my first boat and
stuffing box on current boat. The only thing I have had to do with my
stuffing box since repacking 5 years ago is tighten it slightly twice.
It is less effort than a dripless (no burping) and has much less
(zero?) possibility of a catastrophic failure. Dave
S/V Aries
1990 C&C 34+
New London, CT
On Dec 10, 2019, at 1:39 PM, David Risch via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
I have used a traditional stuffing box with the synthetic packing for
years. Stuff is incredible and dryer than I ever imagined. Simpler
is better…
*/David F. Risch/*
*/(401) 419-4650/*
*From:*CnC-List <cnc-list-boun...@cnc-list.com
<mailto:cnc-list-boun...@cnc-list.com>>*On Behalf Of*Josh Muckley via
CnC-List
*Sent:*Tuesday, December 10, 2019 12:47 PM
*To:*C&C List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>>
*Cc:*Josh Muckley <muckl...@gmail.com <mailto:muckl...@gmail.com>>
*Subject:*Stus-List Mechanical shaft seal options
Alright folks,
I'm looking for thoughts on a replacement for my PYI dripless shaft
seal. It has worked fine and I'm not afraid to stick with it but I'm
looking for possible options or improvements.
I've heard of Tides Marine making one and Sailor Sam's sells 4
different designs by the name Last Drop.
I'll be pulling and truing the shaft, rebuilding the prop, replacing
the cutlass bearing, replacing the seal. Anything else I'm
forgetting while I have it apart?
Thanks,
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
