[Public-List] Packing Gland

[John Birch]

When I install my 1/4 packing I coat it all liberally with PTFE (Teflon) 
Grease. I guess we can now all safely use 'liberal'ly again in the US ; )

Annnnnnnnyway, it prevents glazing the packing and suspect it lasts as long 
as the putty.

Ciao y'all

John


----- Original Message ----- 
From: "Rick Leach" <rixquik at yahoo.com>
To: <public-list at lists.alberg30.org>
Sent: Tuesday, November 03, 2009 3:33 PM
Subject: Re: [Public-List] Packing Gland


> Ahoy all,
> I'm supposing that the "21st century" device is a mechanical seal, like 
> those used with great success and reliability on pumps, etc.  They are, as 
> Gord points out, great...right up until the moment they become an 
> emergency.  Unlike pumps, which are generally very well aligned and easy 
> to access, the prop shafts on our boats are not.  I've installed dozens of 
> mechanical seals with good success, but would never consider one for this 
> application.  Instead, like many others on the list, I've had good results 
> wi
> th the teflon putty that is designed to replace all but the first and last 
> packing rings in the stuffing box.  It wasn't much easier to install than 
> regular packing, but it seems to be lasting a lot longer, with less 
> leakage.  It seems to require less compression too.  That has to help the 
> shaft last longer too.  If you're interested, search for "Drip Less 
> Moldable PTFE Packing".
>
> Here's a link to an article that discusses the various options: 
> http://seagrant.uaf.edu/bookstore/boatkeeper/dripless-seals.pdf
>
> Rick Leach
> Sugar Magnolia, #121
> Monterey, California
>
>
>
> From: Gordon Laco <mainstay at csolve.net>
> To: Alberg 30 Public List -- open to all
>    <public-list at lists.alberg30.org>
> Subject: Re: [Public-List] Packing Gland
> Message-ID: <83217511-29C8-4132-8C78-CF3B8A3844F8 at csolve.net>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
> Yo Ho John -
>
> I tend to agree... the newer 'dripless' glands are like electronic
> ignition.  They are fine until they are not; in which case there is
> nothing you can do but get ashore somehow and replace them.   The old
> style (point ignition, packed shaft glands) have cranky half-lives to
> tell you they are on their last legs.  And if they do fail, they tend
> not fail catastrophically but rather incrimentally.
>
> All Hands, all hands, Hands to your stations...
>
> Gord
>
> On 3-Nov-09, at 1:59 PM, John Birch wrote:
>
>> I've heard of some of those styles of new glands (don't know which)
>> seizing and ripping themselves off the stern tube, imagine that
>> lovely scenario .... blub blub blub
>>
>> I'm sticking with the 1/4" old packing technology, now square the
>> yards, beat to quarters and run out the guns ; )
>>
>> Best
>>
>> John
>>
>> ----- Original Message ----- From: "Thedodore Liszczak" 
>> <tedliszczak at metrocast.net
>> >
>> To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
>> Sent: Tuesday, November 03, 2009 1:52 PM
>> Subject: [Public-List] Packing Gland
>>
>>
>>> I have seen references relating to the replacement of the original
>>> packing gland with a "21st century" device. Any suggestions, any
>>> precautions, would be appreciated. After 30 years, I am tired of
>>> having to squeeze over the engine to repack, re tighten the gland.
>>> Sincerely,
>>> Ted Liszczak
>>> Freedom
>>> A-345
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