[Public-List] shaft coupling parts in bildge
Michael Connolly
crufone at comcast.net
Tue Apr 30 10:34:06 PDT 2019
I agree with Mike. It is a flexible coupling. If the boat is on the hard put a pipe wrench on the coupling inside and then try to turn the prop from the outside. Try appling pressue on and off to see if the connection is solid or questionable. I would not trust this to go very far. If it comes apart underway you loose power to the prop ..........................BUT WORSE THE SPINNING PROP CAN JAMB IN THE RUDDER = NO STEARAGE OR WORSE YET THE PROP JAMBS INTO THE RUDDER AND BREAKS OFF THE CUTTLESS BEARING HOUSING AND SINKS THE BOAT.
My advice get this replaced before splashing in and motoring anywhere. While you are there clean up and lube the gland nut on the stuffing box to make certain you can adj and prevent too much water from entering thru the stuffing box before you splash in.
Very best of luck, be safe. None of these repairs are very costly or difficult. Great photos really helped.
Michael #133
> On April 30, 2019 at 12:27 PM Mike Lehman via Public-List <public-list at lists.alberg30.org mailto:public-list at lists.alberg30.org > wrote:
>
>
> 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 mailto: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 mailto: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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> >
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> ----------------------------------------------------------------------
When I remember bygone days George Dinwiddie
I think how evening follows morn; gdinwiddie at alberg30.org mailto:gdinwiddie at alberg30.org
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So many I love were not yet born. also see:
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