[Public-List] shaft coupling parts in bildge

[Wes Gardner]

Hi Greg,
I'd say it's a flexible coupling.  If you Google that you'll see things
that look close.  I have a Vetus Uniflex 16 flex coupling.  Not sure about
the "bolts" with the rubber bushings around them...Is there some sort of
inner flange/coupling working against an outer coupler that somehow keeps
those "bolt" in place?
Wes

On Tue, Apr 30, 2019 at 11:02 AM Greg Wallis via Public-List <
public-list at lists.alberg30.org> 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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