[C320-list] Packing Replacement
alahlm at comcast.net
alahlm at comcast.net
Wed Feb 8 05:51:44 PST 2006
Bill
i think the packing goes twix the shaft and packing gland not in the nut.
al ahlman
#476
-------------- Original message --------------
From: Bill Culbertson <billculb_a2 at yahoo.com>
> I've never tried changing packing while afloat but I've wondered about the
> following approach. I'm curious what others think.
>
> Get some bicycle tire or car tire innertube material and 2 hose clamps. Wrap
> the rubber a few turns around the aft end of the packing gland and hose clamp it
> to the gland (easy on the tightness). Now put a loose hose clamp around the
> shaft with a diameter set so that the packing nut can slip through it..
>
> Do the same prep you would do for an in-water change where you expect water
> to come in. Now unlock and back off the packing gland nut. Once it comes free,
> water gushes in. Slide the free nut (which contains the packing material all
> the way to the transmission and slide the 2nd hose clamp toward the rubber
> innertube and the packing gland. Get the clamp over the free end of the
> innertube and tighten it up around the rubber thus clamping the rubber to the
> shaft (easy on the tightness). It seems that you've now created a very poor
> man's bellows ala PSI dripless shaft seal except that it only works with a shaft
> which doesn't turn.
>
> Now you can take your sweet time to dig out the old packing from the nut which
> is free of this whole innertube setup. You can work carefully with the nut
> getting the new packing correctly installed with the gaps correctly staggered
> without being hurried up by your sinking boat :).
>
> When the nut is all set, you reverse the process to get it installed.
>
> I live in the midwest and haul out each winter so replacing the packing while
> ashore is no big deal assuming I know by spring that it needs doing from the
> previous season.
>
> -bill
> Harmony #859
>
> amshd2 at aol.com wrote:
> Bryan
>
> I did mine in the water last spring. The key is to have everything ready and
> close at hand, to include a shop vac and a couple of towels. You will get water
> but use the towles to slow things down.
>
> I tried the GFO packing last season and it works great. What a differance. I
> have a 94 model Hull# 30 with teh shollow blidge and teh GFO made a night and
> day differance.
>
> Tony
>
> -----Original Message-----
> From: Bryan Campbell
> To: C320-List
> Sent: Tue, 7 Feb 2006 09:57:52 -0600
> Subject: RE: [C320-list] Packing Replacement
>
>
> Did you install it with the boat in the water?
>
> -----Original Message-----
> From: C320-List-bounces at catalina320.com
> [mailto:C320-List-bounces at catalina320.com]On Behalf Of Robert E. Sloat
> Sent: Monday, February 06, 2006 8:08 PM
> To: C320-List
> Subject: Re: [C320-list] Packing Replacement
>
>
> Karl-I have the GFO packing that Bill refers to in the link installed in
> hull #894 and it is the best $18 investment made on the boat. It is
> basically dripless and takes only a few minutes to install.
>
> Packing
> size for my boat is 1/4 inch even though my owner's manual says it is 3/16
> inch. The
> link tells you what size to use depending on the space between the shaft and
> the inside of the stuffing box. I measured mine by unscrewing the gland nut
> and finding
> a drill size (1/4 ") that snuggly fit in the space between the shaft and the
> stuffing box.
>
> ----- Original Message -----
> From: "Bill Culbertson"
> To: "C320-List" ;
> Sent: Monday, February 06, 2006 4:29 PM
> Subject: Re: [C320-list] Packing Replacement
>
>
> > Karl,
> >
> > Order online from:
> > http://www.e-marine-inc.com/products/gfopacking/packing.html
> > Stay completely away from various stuff stocked in marine stores and
> online at other sites with "gore" in the name. They are NOT the same thing.
> I tried them, they don't work well. But this stuff is excellent.
> >
> > Also - MEASURE. Do not rely on what the manual says. Some folks on the
> list have 3/16" packing - others have 1/4" packing. The manual says 3/16"
> but mine (#859) is definitely 1/4". I got fooled and put in 3/16" one year.
> It dripped unacceptably but more importantly when I removed it at the end of
> the season to replace with something which performed better, I noticed the
> ring cross-section was now rectangular instead of square. One dimension was
> 1/4" and the other much less than 3/16".
> >
> > See the picture on the above link for what to measure. An excellent way
> to do this that was suggested on this list is to (carefully) use drill bits.
> Keep increasing the size until it won't fit. Don't scratch anything but the
> drill bit is much more accurate than a ruler or tape measure.
> >
> > Bill Culbertson
> > Harmony #859
> >
> > Chris Burti wrote:
> > Repack with the Gortex. No drips and virtually
> > impossible to wear out unless you over-tighten it.
> >
> > --- "Karl Mielenhausen _/) "
> > wrote:
> >
> > >
> > > I have about 560 hrs on the engine and what I assume
> > > to be the original shaft packing material. At survey
> > > (in Sept) I had a fair leak (30 drops/min at rest).
> > > I was able to tighten the packing nut and now enjoy
> > > a drop/min or less, with no warming detected during
> > > running.
> > >
> > >
> > >
> > > For those of you who did not upgrade to a PSS seal,
> > > any recommendations on how frequently the stock
> > > packing material should be replaced? Was it Teflon
> > > impregnated, like what is available today?
> > >
> > >
> > >
> > > Since we tend to haul every other year here for
> > > bottom paint, so this spring would be the opportune
> > > time to also address the packing.
> > >
> > >
> > >
> > > Thanks in advance for your wisdom(s)....
> > >
> > >
> > >
> > > Karl Mielenhausen
> > >
> > > 2000 C320 Hull#690 "Silver Lining"
> > >
> > > New Bern, NC
> > >
> > > _______________________________________________
> > >
> > >
> > >
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> >
> > Chris Burti
> > "Commitment"
> > Catalina 320, #867,
> > Farmville, NC
> >
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