[Public-List] Stern Tube Bedding

[George Dinwiddie]

Yes, I tend to publish every alternative approach that doesn't seem 
dangerous. Having now worked on my own, I would not want to 
through-bolt. It's very difficult to access back there, and I've pulled 
the cutless bearing housing off several times over the years.

I don't think the danger is what Rick feared. The water pressure is on 
the outside of the boat, pushing the cutless bearing housing onto it, 
not away. He mentions lag bolts, but on my boat they were machine bolts. 
In any event, if this was such a tenuous construction, then I probably 
would have heard about problems.

  - George

On 4/8/19 4:47 PM, Andrew Johns via Public-List wrote:
> Thanks for the replies everyone! 5200 it is.
> 
> There is a mention of though bolting the cutless bearing housing on the A30
> site.
> 
> http://www.alberg30.org/maintenance/MechanicalPropulsion/CutlessBearing/Thrubolted/
> 
> This seems like the most secure method, I'm assuming the bolts clear the
> "shelf" below the stuffing box?  Anyone know what size bolts they used? My
> boat is 2 hours  away or I would measure myself.
> 
> Thanks,
> Andrew
> 
> 
> On Mon, Apr 8, 2019 at 2:55 PM Andrew Johns <johnsab9 at gmail.com> wrote:
> 
>> John,
>> I do summer dockage and winter storage at The Moorings.  I'm currently in
>> the lake side lot, in front of the little house on the right side.
>>
>> Andrew
>>
>>
>>
>>
>>
>>
>> On Mon, Apr 8, 2019 at 2:10 PM John Irving via Public-List <
>> public-list at lists.alberg30.org> wrote:
>>
>>> Andrew, where do you keep your boat in the winter?  I recently replaced
>>> my cutless bearing but fortunately didn’t have that difficulty.
>>>
>>> John Irving
>>> Scotch Bonnet #634
>>> Champlain Marina
>>> Colchester, Vt
>>>
>>>> On Apr 8, 2019, at 1:49 PM, Gordon Laco via Public-List <
>>> public-list at lists.alberg30.org> wrote:
>>>>
>>>> Hello Hernan…
>>>>
>>>> The threads can be restored with complete integrity by filling the
>>> holes with epoxy thickened with appropriate fibre…. once cured, drill out
>>> the holes a size smaller then run a thread cutting tap in to rethread.
>>>>
>>>> That is quite a secure means of re-establishing your fastenings.
>>>>
>>>> Gordon Laco
>>>> SURPRISE 426
>>>>
>>>>
>>>>
>>>>
>>>>> On Apr 8, 2019, at 1:37 PM, Hernán Scarnichia via Public-List <
>>> public-list at lists.alberg30.org> wrote:
>>>>>
>>>>> The "threads on the keel" stripped out on my boat.
>>>>> When I hauled out one of the screws was gone and the other I pulled
>>> with my
>>>>> fingers.
>>>>> In my opinion is not a strong design for a part that can see some
>>>>> vibration. But nobody else seems to have had this problem.
>>>>>
>>>>> On Mon, Apr 8, 2019 at 7:07 AM Andrew Johns via Public-List <
>>>>> public-list at lists.alberg30.org> wrote:
>>>>>
>>>>>> Good Morning,
>>>>>> In my rapidly snowballing shaft seal project... I have removed the
>>> cutlass
>>>>>> bearing housing to replace worn bearing.
>>>>>>
>>>>>> I removed the bolts holding it to the keel and rotated it with a pipe
>>>>>> wrench in an effort to get it to thread from the stern tube.
>>> Unfortunately
>>>>>> the whole bearing housing and stern tube assembly came out as one
>>> piece.
>>>>>> Fortunately its in good shape but the two pieces are hopelessly stuck
>>>>>> together.
>>>>>>
>>>>>> Looking back though the list it appears Whitby used some sort of
>>> caulk to
>>>>>> bond in the assembly? Dolponite?  What is the groups thoughts on
>>> using 5200
>>>>>> to reinstall the stern tube/ bearing housing?
>>>>>>
>>>>>> Additionally, should I be worried about the threads in the keel
>>> striping
>>>>>> out?  It don't appear to have any metal inserts or anything of that
>>> sort.
>>>>>>
>>>>>> Thanks,
>>>>>> Andrew Johns
>>>>>> Ecola # 104
>>>>>> Colchester VT
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> _______________________________________________
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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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