[Public-List] Stern Tube Bedding

mahseer at kos.net mahseer at kos.net
Tue Apr 9 05:02:05 PDT 2019


When I did my stern tube the threads were stripped, I inserted 2 ss helicoil thread inserts worked great.
John
Boor

Sent from my iPad

> On Apr 9, 2019, at 5:42 AM, Jonathan Bresler via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Andrew,
> 
> "the whole bearing housing and stern tube assembly came out as one piece."
> 
> Been noodling on this and "how did Whitby align the engine in a production
> facility".
> Wondering if they installed the engine, and the installed the stern tube,
> cutless bearing,
> and housing as one piece, into an oversize hole that was closed up as
> needed.  The
> bearing would "self-align" if not forced out of alignment by the sides of
> the hole.
> 
> Have not done this myself, so there is some (more than "some"?) speculation
> here.
> 
> Thoughts anyone?
> 
> Jonathan
> 
> On Mon, Apr 8, 2019 at 3:17 PM 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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> 
> 
> -- 
> Jonathan M Bresler
> S/V Constance Alberg 30 #262
> Annapolis/Eastport MD
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