[Public-List] Shaft Seal / Stuffing box

David Fay davidfay999 at gmail.com
Fri Mar 15 10:38:39 PDT 2019


I considered (but ultimately decided against) moving to a dripless stuffing box. For those that do go dripless, here's a pretty good BoatUS video on how to install one: https://www.youtube.com/watch?v=s9_K7EnH1wY

David
Blue Teal #284

> On Mar 15, 2019, at 1:30 PM, Andrew Johns via Public-List <public-list at lists.alberg30.org> wrote:
> 
> I figured I would post a followup to the stuffing box question.. that
> turned into a discussion on deck hatches :P
> 
> The 7/8" prop shaft with a 1-3/8" stern tube seems to be a odd combination.
> 
> It appears no conventional stuffing boxes are available with our shaft
> size and stern tube combination.  I called Buck Algonquin to inquire if the
> 1- 3/4  model could be modified to accommodate a 1-3/8 tube, but there is
> not enough material in the casting.  Some sort of 1-3/4 to 1-3/8 reducer
> would need to be fabricated and they did not like the idea of sleaving the
> 1-7/4 id hose with another to reduce it down to 1-3/8 od.
> 
> The only option it seems is the PSS drip less shaft seal. Which uses a
> carbon flange pushing against a stainless ring (like my existing lasdrop
> seal).  PN 02-078-144 which goes for around $225 online.The applications
> engineer said due to our cutlass bearing in the stern tube it may require
> water injection to provide adequate cooling.  The general consensus online
> is that folks either hate this thing and it will sink your boat with out
> warning while you sleep or it is the best thing ever invented.
> 
> https://www.shaftseal.com/pss-type-a-seal.html
> 
> Looks like I will be ordering one of these in the next few weeks while I
> wait for the ice to melt.
> 
> Thanks for your feedback everyone!
> 
> Regards,
> Andrew
> ECOLA #104
> 
> 
> 
> On Fri, Mar 8, 2019 at 11:47 AM Mike Lehman via Public-List <
> public-list at lists.alberg30.org> wrote:
> 
>> Check with Hamilton Marine in Maine...they have lots of hatches, may for
>> commercial use, so they are very strong and durable.
>> 
>> www.hamiltonmarine.com
>> 
>> 
>> On Fri, Mar 8, 2019 at 7:48 AM Jeffrey Randall via Public-List <
>> public-list at lists.alberg30.org> wrote:
>> 
>>> Thanks,
>>> 
>>> Jeff
>>> 
>>> On Friday, March 8, 2019, Wes Gardner via Public-List <
>>> public-list at lists.alberg30.org> wrote:
>>> 
>>>> Hi Jeff,
>>>> 
>>>> Mine is made by Tempress. Google Tempress Access Hatch and that will
>> put
>>>> you on the right track. Mine is about 13x22. Yes, it’s plastic and
>>> probably
>>>> is NOT suitable for offshore work. You CAN walk/stand directly on it. I
>>>> change mine out every five years or so as it might get brittle. Someone
>>>> makes an aluminum that WILL be suitable for offshore work, can’t
>> remember
>>>> who ...maybe Bomar?
>>>> 
>>>> Wes
>>>> 
>>>> Sent from my iPad
>>>> 
>>>>> On Mar 7, 2019, at 6:17 PM, Jeffrey Randall via Public-List <
>>>> public-list at lists.alberg30.org> wrote:
>>>>> 
>>>>> This is for Wes.  Where did you get the floor hatch for your
>> Alberg.  I
>>>>> have decided after going God knows how long without updating my
>>> stuffing
>>>>> box. that this is the spring.... However as always that means two
>>>> projects
>>>>> at least.  The Floor hatch and the stuffing box.  Any info size type
>>> etc
>>>>> would be great.
>>>>> 
>>>>> Jeff Randall
>>>>> Yankee Star.  296
>>>>> 
>>>>> On Thu, Mar 7, 2019 at 2:55 PM Wes Gardner via Public-List <
>>>>> public-list at lists.alberg30.org> wrote:
>>>>> 
>>>>>> Hi All,
>>>>>> 
>>>>>> I guess I'm a traditionalist...I'll stick with the good old tried
>> and
>>>> true
>>>>>> stuffing box and deal with a few drips, the main reason....everyone
>>>>>> understands these things.  I suppose the down side might be in the
>>>> limited
>>>>>> access to the stuffing box.  My boat has a large access port in the
>>>> cockpit
>>>>>> sole so I can readily and easily adjust/maintain my stuffing box.
>>> I've
>>>>>> also repacked many, many from my years in the yards so I'm not
>>>> intimidated
>>>>>> when repacking either in the water or on the hard.  A well
>> maintained
>>>>>> stuffing box can last virtually forever I suppose.  Also there's no
>>>> need to
>>>>>> REALLY tighten the lock nut....these things are bronze (soft metal).
>>>>>> 
>>>>>> Wes
>>>>>> 
>>>>>> On Thu, Mar 7, 2019 at 10:40 AM George Dinwiddie via Public-List <
>>>>>> public-list at lists.alberg30.org> wrote:
>>>>>> 
>>>>>>> Andrew,
>>>>>>> 
>>>>>>> My thoughts are on
>>>>>>> http://alberg30.org/maintenance/MechanicalPropulsion/DriplessSeal/
>>>>>>> 
>>>>>>> Are you sure that teflon packing is dripless?
>>>>>>> 
>>>>>>> - George
>>>>>>> 
>>>>>>>> On 3/7/19 10:24 AM, Andrew Johns via Public-List wrote:
>>>>>>>> On #104 we have an old lasdrop dripless shaft seal that is no
>> longer
>>>>>>>> supported by the manufacturer and due for replacement.
>>>>>>>> 
>>>>>>>> What are the groups thoughts on shaft seals/ stuffing boxes?
>>>>>>>> 
>>>>>>>> I'm leaning towards a conventional stuffing box with teflon
>> dripless
>>>>>>>> packing.
>>>>>>>> 
>>>>>>>> Thanks,
>>>>>>>> Andrew
>>>>>>>> ECOLA #104
>>>>>>>> Colchester ,VT
>>>>>>> 
>>>>>>> --
>>>>>>> ------------------------------------------------------------
>>>> ----------
>>>>>>>  When I remember bygone days                         George
>>> Dinwiddie
>>>>>>>  I think how evening follows morn;
>>> gdinwiddie at alberg30.org
>>>>>>>  So many I loved were not yet dead,
>>> http://www.Alberg30.org
>>>>>>>  So many I love were not yet born.                          also
>>> see:
>>>>>>>               'The Middle' by Ogden Nash
>>> http://idiacomputing.com
>>>>>>> ------------------------------------------------------------
>>>> ----------
>>>>>>> 
>>>>>>> 
>>>>>>> 
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>>>>> 
>>>>> 
>>>>> --
>>>>> Sincerely,
>>>>> 
>>>>> 
>>>>> Jeff Randall
>>>>> JCMedical
>>>>> 603-498-5574
>>>>> _______________________________________________
>>>>> These businesses support your Association:
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>>> 
>>> 
>>> --
>>> Sincerely,
>>> 
>>> 
>>> Jeff Randall
>>> JCMedical
>>> 603-498-5574
>>> _______________________________________________
>>> These businesses support your Association:
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>>> 
>> 
>> 
>> --
>> Mike Lehman
>> ~~~_/)_/)~~_/)~~~
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