[Public-List] Shaft log, cutlass bearing housing replacement.

[George Dinwiddie]

David,

As I recall, the sterntube is straight threads, not tapered pipe threads.

Note that the waterproofing depends on the seal of the cutless bearing 
housing (and its bolts) to the hull and to the sterntube, not on any 
seal of the sterntube to the hull as is often surmised. The caulk around 
the sterntube is to hold it in place as you unscrew the cutless bearing 
housing from it.

  - George


On 6/13/22 4:11 PM, David A. Bardsley via Public-List wrote:
>     Jonathan,
>     Thank you for the links.  Lots of great info there for sure.  My
>     evenings this week are now booked!
>     All,
>     The A30 website image at the  ../maintenance/MechanicalPropulsion page
>     is a fair representation of my setup.  What's giving me second thoughts
>     are the NPT threads on the stern tube, note I haven't yet separated the
>     bearing housing from it.  During previous refit work I replaced all the
>     factory DIY through hulls with proper seacocks and during that process
>     replaced numerous examples of NPT threads screwed into NPS ball
>     valves.  I immediately suspected the tube/housing to be of a similar
>     setup, however if that position is incorrect and the consensus here is
>     the factory housing/tube combination is sound I'm happy to simply
>     replace the cutlass bearing and reinstall the assembly.
>     What are your thoughts?
>     On Jun 13, 2022 14:05, Jonathan Bresler <262alberg30 at gmail.com> wrote:
> 
>     David,
>     Dont know if James Baldin (atomvoyages on YouTube who rebuilds boats)
>     has done a video on this.  That would be a good place to look.
>     Good Old Boat has two good DIY articles on how to repair a broken stern
>     tube
>     (Issue 109, Jul/Aug 2016 and Issue 28, Jan/Feb 2003)
>     Another place is the work that Lackey Sailing does.  His replacement on
>     an
>     Alberg is documented over parts of several web pages
>       *
>       * about half way down
>         [1]http://www.lackeysailing.com/archived/hattiemae/june09/62209.htm
>       * bottom paragraphs of
>         [2]http://www.lackeysailing.com/archived/hattiemae/june09/62309.htm
>       * first half of
>         [3]http://www.lackeysailing.com/archived/hattiemae/june09/62409.htm
>       * middle of
>         [4]http://www.lackeysailing.com/archived/hattiemae/june09/63009.htm
>       * lower portion of
>         [5]http://www.lackeysailing.com/archived/hattiemae/july09/70209.htm
>       * top half of
>         [6]http://www.lackeysailing.com/archived/hattiemae/july09/70309.htm
> 
>     On Mon, Jun 13, 2022 at 12:19 PM David A. Bardsley via Public-List
>     <[7]public-list at lists.alberg30.org> wrote:
> 
>          Hello all!
>          I'm was in the process of replacing the cutlass bearing and after
>          pulling the shaft log assembly and inspecting it have decided to
>          replace the whole kit and kaboodle.
>          Are there any suggestions for a complete replacement kit?
>          I apologize in advance in case this question has been answered a
>       dozen
>          times already.
>          Dave
>          Ginseng #574
>       _______________________________________________
>       These businesses support your Association:
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> 
>       --
> 
>     Jonathan M Bresler
>     S/V Constance Alberg 30 #262
>     Annapolis/Eastport MD
> 
> References
> 
>     1. http://www.lackeysailing.com/archived/hattiemae/june09/62209.htm
>     2. http://www.lackeysailing.com/archived/hattiemae/june09/62309.htm
>     3. http://www.lackeysailing.com/archived/hattiemae/june09/62409.htm
>     4. http://www.lackeysailing.com/archived/hattiemae/june09/63009.htm
>     5. http://www.lackeysailing.com/archived/hattiemae/july09/70209.htm
>     6. http://www.lackeysailing.com/archived/hattiemae/july09/70309.htm
>     7. mailto:public-list at lists.alberg30.org
>     8. http://www.alberg30.org/store/A30supporters.html
>     9. mailto:Public-List at lists.alberg30.org
>    10. http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
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> 

-- 
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   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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