[Public-List] Cracked Stern Tube - Laugh or Cry?

[George Dinwiddie]

Hernán,

How did a fiberglass shaft log change the bolts of the cutless bearing 
housing?

  - George

On 9/18/18 1:30 PM, Hernán Scarnichia via Public-List wrote:
> The problem on my boat (#414) was that the two bolts holding the cutlass
> bearing housing were not through bolted, just threaded into the fiberglass,
> these were not lag bolts with a coarse thread either, just regular thread
> bolts threaded straight to the fiberglass. The shaft vibrations loosened
> them and one bolt was already gone when I hauled out.
> I suppose that if I had realized earlier that the engine was misaligned,
> and the shaft vibrating, it could all have been prevented.
> Either way I did not like the fact that all that was keeping the water out
> was those two bolts and a wad of caulk so I scrapped the whole thing and
> installed a fiberglass shaft log.
> 
> 
> 
> On Mon, Sep 17, 2018 at 1:58 PM George Dinwiddie via Public-List <
> public-list at lists.alberg30.org> wrote:
> 
>> On 9/17/18 5:36 PM, Jonathan Bresler via Public-List wrote:
>>> Remember hearing form various sources that cutlass bearings and the rest
>>> are tricky
>>> "cause the stern tube might turn or twist and break its bond to the
>>> deadwood".
>>> Seems that won't be a problem in this Triton given the amount of epoxy
>>> applied.
>>
>> This was my fear, and the reason I pulled and rebedded the stern tube
>> when I noticed that it had turned. The hose clamp screws were no longer
>> pointed up where a screwdriver could reach them.
>>
>> It turned out that this is an unnecessary worry. The water is contained
>> by the cutless bearing housing (and bolts), and the stuffing box. The
>> caulking of the stern tube itself is not critical.
>>
>>    - George
>>
>> --
>>    ----------------------------------------------------------------------
>>     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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-- 
  ----------------------------------------------------------------------
   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
  ----------------------------------------------------------------------