Re: [Amel Yacht Owners] Re: bow thruster service. Problem


Alexandre Uster von Baar
 

Good morning Jim,

1) I did 3 times the bow thruster overall and it never happened to me, unless I am not understanding the question…
You did not keep the stopper to make the Thruster shaft going through the seal did you?

Here are pictures I took, it if helps: http://nikimat.com/bow_thruster_overhaul.html


2) Being cut is normal, I think a slightly better job could have been done cutting the foam.

3) The prop shaft lip seal in under the propeller hub, here is the picture:
http://nikimat.com/bow_thruster_overhaul/bow_thruster_overhaul_22.jpg

You will need to be “VERY” careful using 3 tiny screw to pull it out. You don’t want to damage the food of the bow thruster.
Look at my pictures. I think it will make sense.

Sincerely, Alexandre





--------------------------------------------

On Wed, 6/22/16, capt.anderson@gmail.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] Re: bow thruster service. Problem
To: amelyachtowners@yahoogroups.com
Date: Wednesday, June 22, 2016, 11:11 PM


 











Perfect timing on
this topic for me. Thanks in advance
for any help with the following questions. Please forgive me
for demonstrating
ineptitude as I chime in with a few questions:

 

1. When doing the
in-the-water service today on SM384, as
per Gary Silver’s instructions & Bill Rouse’s
additional notes, after
removing the four hex-head screws that secure the Thruster
Shaft Housing to the
Motor, the shaft would not drop all the way down and out the
bottom of the boat.
It stopped a good 2” above the “stopper” hose clamp.
After installing the Amel
Special Tool initially I could lift the shaft up and down
but after trying to
ram it downwards it stuck and wouldn’t budge up or down. I
had to hire a diver.
After much pulling and wiggling the diver finally got the
shaft to come out.
Upon inspection of the foot, shaft and the diver’s
inspection of the Thruster
Trunk nothing looked unusual. Any ideas what might have
caused this?

I am hoping I won’t
encounter the same problem with the
shaft getting stuck when trying to put it back in
tomorrow.

 

2. The diameter of the
two neoprene seals on the Thruster
Foot is larger than the width of the foot on one side and
would over-hang on
one side, except the excess was trimmed off with a razor
knife. (Photo posted
at: https://groups.yahoo.com/neo/groups/amelyachtowners/photos/albums/1196149903

The Amel-supplied
replacements are identical and will
need have the over-hang trimmed off too if they are not to
over-hang.  Is this normal? (Last service,
seals in photo
done by Amel Martinique.)

 

3. Where is the Prop
Shaft Lip Seal? Is it in the hub of
the propeller, flush with the 6 nylon screws that hold the
prop on, or is it
behind the prop in the foot? I removed the 6 nylon screws
from the prop but it
will not come off.  The seal in the hub
of the prop, flush with the nylon screws, is smaller than
the Amel-supplied prop shaft seal so I presume the
lip seal is in the trunk behind the prop. If so, any
suggestions on how to get
the prop off with the 6 nylon screws removed?
Again, thanks for any help
and please forgive me for demonstrating my ignorance.
JimSM384 Sirena AzulSeattle










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