[Public-List] shaft coupling parts in bildge

[Mike Lehman]

That is a worn out flex coupling. I can't find the brand, but it needs to
be replaced. The engine will 'most likely' need to be removed to replace it.

On Tue, Apr 30, 2019 at 12:04 PM George Dinwiddie via Public-List <
public-list at lists.alberg30.org> wrote:

> Greg,
>
> When you look down the hole in
> http://def.dyndns.org/boat/20190429_bolt_out.jpg is that the shaft at
> the bottom, or something else? I can't tell the depth from that picture,
> and I've not seen a shaft coupling that looks like that.
>
>   - George
>
> On 4/30/19 10:54 AM, Greg Wallis via Public-List wrote:
> >   Hi to all, and thanks for your replies.
> >
> > I got to the boat last night and took a look with fresh eyes and a
> camera.
> >
> > On closer inspection, the round things that fill the holes are bolts with
> > no thread, with a very hard rubber structure around them.  The unit has 3
> > of these, all of which were fished out of the bildge.  You can see in the
> > picture that it has a head on it to fit a large socket or wrench.  This
> > suggests that it was meant to be tightened like a bolt.  However there is
> > no thread on the bottom of the bolt, and the end of the bolt is actually
> > concave, to fit against the round shaft.
> > Here is a picture of the bolt I am talking about:
> > http://def.dyndns.org/boat/20190429_bolt_closeup.jpg
> >
> > Here is a picture of the "round aluminum thing" that the drive shaft
> > terminates inside of.  There is 3 opening for the bolts.  This picture
> > shows one of the openings.  You can also see the remains of the duct tape
> > that was wrapped around the outside edge of the round thing.
> > http://def.dyndns.org/boat/20190429_bolt_out.jpg
> >
> > Here is a picture with the bolt installed.  Note there is no threads, so
> i
> > just gently tapped it in with a hammer and some grease.
> > http://def.dyndns.org/boat/20190429_bolt_installed.jpg
> >
> > After installing the 3 bolts, I then clamped the whole thing together in
> a
> > plumbing sleeve to prevent the bolts from flying out from the certrifugul
> > force.  (I think that this was previously being done using ducttape).
> > http://def.dyndns.org/boat/20190429_clamped.jpg
> >
> > Clearly this all need to be redone, but I am pretty sure this will at
> least
> > get me home without the prop shaft falling falling out in reverse.
> >
> > Does anybody know what type of coupling system this is?  It's on a 1965
> > Alberg 30 with an Atomic 4.
> >
> > Thanks
> > Greg
> >
> > On Sun, Apr 28, 2019 at 11:45 PM Greg Wallis <gregwallis at gmail.com>
> wrote:
> >
> >> Hi
> >>
> >> Recently purchased my first real sailboat "woodwind" hull 165.
> >>
> >> crane-in in 5 days so i find myself in a bit of a pickle
> >>
> >> i grabbed the propeller shaft and noticed it could be pulled out pretty
> >> much as far as you can pull it. it hits the rudder if the rudder is
> >> straight and if rudder is turned it can be pulled further out.
> >>
> >> behind the gearbox is a 5 inch aluminum (i think aluminum) round thing
> >> that the shaft terminates in.  this thing has 3 large holes. this thing
> was
> >> wrapped in ducttape.  what goes in the 3 holes were found in bottom of
> the
> >> bildge. 3 heavy steel round things that fit into the holes perfectly.
> so i
> >> gently hammered them back in and now the shaft seems to be holding.
> >>
> >> questions
> >>
> >> 1. what is this 5inch aluminium round thing called? who makes it?
> >>
> >> 2. what are the 3 things that fill those holes called? they fill the
> hole
> >> and also fill the opening in the shaft coupling inside
> >>
> >> 3. what prevents the 3 things that fill the holes from coming out?  it
> had
> >> duct tape wrapped around it but with all the oil it seemed to come
> loose. i
> >> am thinking of putting a fernco or pipe clamps on there from plumbing
> >> department
> >>
> >> thanks
> >> greg
> >>
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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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>
>
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-- 
Mike Lehman
~~~_/)_/)~~_/)~~~