[Public-List] Stern tube

vmarmei via Public-List public-list at lists.alberg30.org
Mon Jun 13 12:29:05 PDT 2016


YES.....
Hack-saw.....Buy a 4-1/2 inch long ....this way you have another 
piece left over for years to come.
Villo



At 09:46 AM 13/06/2016, you wrote:
>Thanks, Don, very helpful. Fortunately, maybe, there is no dolphite in
>evidence, I think the PO went through that in 2009. What is around the tube
>is apparently 4200, as it is still somewhat pliable. It may be the same
>procedure though.
>
>I am still looking for a source for the new bearing. Everything I see online
>is 3 1/2" long whereas what I measure is 2".
>Any suggestions?
>
>Greg Bover
>#114
>Gloucester
>
>-----Original Message-----
>From: Don Campbell [mailto:dk.campbell at xplornet.ca]
>Sent: Saturday, June 11, 2016 10:58 PM
>To: Greg Bover <gregbover at cbfisk.com>; Alberg 30 Public List -- open to all
><public-list at lists.alberg30.org>
>Subject: Re: [Public-List] Stern tube
>
>Hi Greg:
>     You have yourself quite a job. The only way to seal that tube well is to
>
>remove all of the dolfinite that was the seal and that means getting in to
>the back of the shaft area and scraping all you can of it out, Then you
>could take a wire brush on a drill to rough it up and get more out, and then
>
>it is the solvents. Be careful of inhaling whatever you use. use extra
>ventilation. Once it is clean as a whistle, you can reinstall the tube and
>the bracket on the exterior that holds the bearing. I used most of a tube of
>
>5200 to seal things because I did not want to have to go through the process
>
>again and I put some on the join and then let it start to harden before
>adding more. The toughest part is under the tube, but access and care will
>suffice. That was about 10 years ago now and I still have a dry seal between
>
>the tube and the water outside. IT IS A BIG CHORE TO DO IT WELL.  Any
>dolfinite in the way means you will have a leak.  I also had the motor out
>at the time so had better access., but for me to take out the motor and get
>it back in is about a 3 1/2 hour job, which is not bad in the scheme of
>things.
>     My feeling is that you will have a constant leak here unless you get a
>good seal and the only way to do that is to have things really clean.
>Don
>
>-----Original Message-----
>From: Greg Bover via Public-List
>Sent: Saturday, June 11, 2016 7:00 PM
>To: List A-30
>Subject: [Public-List] Stern tube
>
>Test fired the Yanmar this morning prior to next weeks scheduled launch when
>
>I put it in gear by mistake it rumbled and rattled unusually. I found the
>shaft to be loose in the cutless bearing. Three hours later after making a
>prop puller I got the bearing out but when I tried to unscrew it from the
>stern tube the tube came part way out with it. What do I need to do to seal
>it when it goes back together?
>Also all the cutless bearings of the right od and id seem to be 3 1/2" long
>whereas mine is just over 2". Does one just cut to length?
>Thanks to George for the good info on the website. And thanks to all you all
>
>for your advice.
>Greg Bover
>#114 Pensive Flyer
>Gloucester
>
>Sent from my iPhone
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