This is what Yanmar supposedly says on the issue of engaging the gears while
sailing. You’ll find references to this all over the web, but I was not able to
find it on the Yanmar web site.
Advisory Number: MSA08-003:
DATE February 8, 2008 Dealers and OEMs
TO: All Marine Distributors
SUBJECT: Gear in Neutral While Sailing All MODELS:
All Sailboat Engines
We continue to get questions regarding the correct gear position while sailing
with the engine OFF. This advisory is issued as a reminder; Yanmar requires
that if sailing with the engine OFF (not running) the transmission shifter must
be in the neutral position or internal damage to the gear or sail-drive will
result. This damage will not be covered by Yanmar’s Limited Warranty. Please
instruct customers and dealers who deliver the sailboat to the customer, of the
correct (Neutral) position for the marine gear while sailing.
If the customer desires that the propeller shaft not spin while sailing, either
a folding propeller, shaft break, or other suitable device may be used.
However, Yanmar accepts no responsibility for the selection, installation, or
operation of such devices. Please also refer to Marine service advisory
“MSA07-001_Yanmar Sail Drive Propeller Selection” for additional information.
If you have any questions regarding this advisory please contact a Customer
Support representative.
From: Pat Nevitt
Sent: Thursday, September 06, 2012 12:05 PM
To: cnc-list@cnc-list.com
Subject: Re: Stus-List Martec Folding Prop Operation
Joel,
I was always taught that putting it in reverse after ensuring the shaft was in
the proper position essentially locked the shaft in that position and ensured
the blades remained where you wanted them. The idea is that preferably when
the boat is on the hard, you set the prop so that the blades fold properly
(horizontally), then you go up and mark a line on the shaft and a non moving
part. Once underway and with the boat moving through the water you shut the
engine off with it out of gear. Someone goes down below and rotates the shaft
until the line you marked on the shaft is aligned with the other line you
marked on the non moving part, which ensures the prop is set horizontally. The
movement of the boat through the water folds the blades the way you want them.
Then you place the gear lever in reverse, which locks the shaft in position. I
have been doing this all season with great success. In fact on the 4 races you
have been with us I have been doing this and you never said anything about it.
You probably didn't notice I was doing that. You can tell the shaft never
rotates because the lines always remain together. I don't see how the shaft is
rotating.
Pat Nevitt
C&C 29 MKII
Patriot
Galesville, MD
On Thu, Sep 6, 2012 at 11:52 AM, Joel Aronson <joel.aron...@gmail.com> wrote:
Bill
It wears out the transmission because it will force the shaft to rotate, and
it also voids a Yanmar warranty (like any of us have one).
Joel
On Thu, Sep 6, 2012 at 11:49 AM, Bill Connon <billcon...@globetrotter.net>
wrote:
Joel Aronson wrote:
My Martec will vibrate if it is not in the right position. I put the
gearbox into reverse for a second or two and the vibration stops. I assume it
is in the feathered position. (Don't sail with the gearbox in reverse.)
Joel
35/3
The Office
Annapolis
Joel,
What are the consequences of sailing with the gearbox in reverse?
Bill
Caprice 1
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