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Re: Flax packing width / Dripless boxes

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  • Jan
    Whoa John, I thought I was the only one to carry duck seal as part of my spares! I ve never come across another sailor who even knows what it is but I ve
    Message 1 of 14 , Jan 9, 2013
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      Whoa John,

      I thought I was the only one to carry "duck seal" as part of my spares! I've never come across another sailor who even knows what it is but I've explained why I have it aboard for exacttly your reason!

      Jan S38 MkI (with GFO in the original shaft fitting)

      --- In Sabresailboat@yahoogroups.com, john kalinowski wrote:
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      > Allison
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      > A member of my club had a C&C 27 that had the rubber gator tear while sailing.
      > He was doing hull speed from the sound to the club radioing in ahead.
      > By the time he got to the dock, we had a travellift ready for him. Took a couple hours to empty his boat.  He had not changed the gator in 12 years.  PYI suggests 8 years. I do mine every 7.  If the gator tears, the water is pretty impressive.  Same deal as tearing the gator on an IO unit.
      >  
      > I once did not get the s/s collar tight enough after a rebuild and it slid back just a smidgen. Nothing at mooring,but it was to the floorboards in a 2.5 mile motor ( things you never want to hear from the cabin is "is there suppose to be water/smoke down here?").  I have since put a zinc in place so it can never happen again.  PYI now sells a backup collar. A zinc is 1/5th the price and has more surface area.
      >  
      > So there are 2 ways they can leak.
      > I would suggest anyone using them carry a stick of waterproof electrical putty (about $4 at Home Depot). It can be tucked into the prop log tunnel from the outside to stop the leaking in an emergency, though you will not be able to use the motor.
      >  
      > having said that, I love my PYI set up and would not change back.  The new Bennetaus have a bizzare spin on the design for their io where you just pack with grease and no way to replace the gator easily.
      >  
      > john
      >
      > --- On Tue, 1/8/13, Allison Lehman wrote:
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      > From: Allison Lehman
      > Subject: Re: [SabreSailboat] Re: Flax packing width / Dripless boxes
      > To: Sabresailboat@yahoogroups.com
      > Date: Tuesday, January 8, 2013, 1:06 PM
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      > Stephen,
      > How old was the dripless packing gland on the boat that sank?  Do you know if it had ever been checked?  What exactly failed?  Could it have been a loose hose clamp?  I ask these questions because many people have been scared off of these thinking they are inherently  flawed, and as you eluded to, the cause of failure is usually operator error.  In this case,  not checked or replaced at recommended intervals.
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      > I say this as a Yacht broker who has been selling new boats with for the last 16 yrs as well as having my own for the last 9 yrs.  I have yet to see a failure on any boat with one, with the exception of lack of maintenance (a hose clamp corroded thru and failed)  Had the owner looked at the packing gland at least once every 6 months they would have seen this.  
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      > I hate to see a good product get trashed due to bad maintenance.   In many cases I have seen older boats switch out to a dripless system and the boat changed dramatically for the better.  First off, no water in the bilge so no smell, no regular cleaning of the bilge, humidity in the boat down so doors fit better, mirrors last longer and upholstery and foam lasts longer.  The benefits are huge but one must still maintain the product.
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      > OK, Allison, off the soap box!
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      > On Jan 8, 2013, at 9:50 AM, Stephen wrote:
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      > I would advise against the dripless stuffing box. I have a standard stuffing box on my 34MK2 which was packed 6 or 7 years ago, and has required little adjustment since.
      > I had a client whose Bristol 34 sank when the dripless stuffing box failed. I did a fair amount of research which indicated the dripless boxes have two modes-they work great or the boat suddenly sinks. Sometimes low tech is good! (I think part of the problem is that dripless boxes are seldom maintained properly and their failures tend to be major-traditional stuffing boxes fail progressively, and give you a lot of warning).
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