On Fri, 9/23/16, lokiyawl2 lokiyawl2@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Maramu bow thruster rebuild parts
To: amelyachtowners@...
Date: Friday, September 23, 2016, 11:37 AM


 









Bill,
   I appreciate your experienced
input.  I will begin spraying the penetrating oil up into
the joint between the motor housing and the tube as you
suggested.  This will give me over two weeks of soaking
before the boat is hauled.  I will go ahead and order a set
of bearings in addition to the items listed. I will also
order the Amel tool if you think it would be
helpful.
  I just
wanted to add that I am now really glad that I bought an
Amel with the bow thruster, it is such a help with stern in
Med moorings.
Best,
James AltonSV Sueno
#220Sardinia, Italy




Sent from Samsung
tablet.
-------- Original
message --------From: "'Bill & Judy
Rouse' yahoogroups@... [amelyachtowners]"
<amelyachtowners@...> Date:
9/23/16 14:23 (GMT+01:00) To:
amelyachtowners@... Subject: Re:
[Amel Yacht Owners] Maramu bow thruster rebuild parts


 






James,
Check with Amel for:

  Prop hub and screws

  Tube seal

  Prop shaft seal

  Foam donuts (3)
That should do it for normal service...however,
you may want to open it and replace the bearings.
When corrosion occurs that seizes the tube, it
is almost always oxidation (rust) of the cast iron motor
connection at the tube. The corrosion expands the cast iron
and "clamps" the tube in place. Spraying in those
holes will get some penetrating fluid where you need it and
spraying upward at the joint. Use an entire stay can over
2-3 days.
Amel designed a tool which will separate the
tube. It clamps onto the tube, then treaded bolts push the
tube out of the corrosion-packed connection. It is pictured
in the Files section. The number one tool you need is
patience.
Bill Rouse

BeBe Amel 53 #387

Sent from my tablet

+1832-380-4970 USA Voice Mail

On Sep 23, 2016 5:00 AM,
"lokiyawl2@...
[amelyachtowners]" <amelyachtowners@...>
wrote:















 









Hello,  I need to
service the bow thruster on my 46' 1987 Maramu.  Can
anyone provide me a list of the normal parts to order with
part numbers if possible?
   Also,  my thruster
has not been serviced in a number of years and I suspect the
motor shaft is stuck on the vertical drive shaft.  I
removed the 4 bolts securing the composite tube and did some
gentle tapping and tugging with no movement.  There is no
corrosion evident between the composite tube and the motor
housing since the previous owner keeper that we'll
lubricated.  I was hoping that I could spray through the
holes for the bolts securing the composite tube to the motor
housing but I noted that on my thruster the holes only go
part of the way through the composite tube.  Do the bolt
holes go all of the way through the opposite tube on the
SM?  If so,  is there any reason that I cou
ld not drill on through one holes so that I can spray the
drive shaft?  One of the holes has stripped threads so I
was thinking of drilling deeper to retap the threads but I
don't know how thick the tube is etc.   Any guidance
here would be appreciated.
Best, James
Alton,  SV Sueno #220.Sardinia,
Italy





































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