Re: Stus-List Transmission in forward or reverse while sailing?

[dwight veinot via CnC-List]

 I have a 3 blade Bruntons Autoprop...I can feel it spin with the
transmission in reverse but it does spin when in forward so I have
sailed the last 12 years with the transmission of my Universal M4-30
in forward...no problems yet...I think my circumstance is caused by
the way the autoprop blades work position themselves for forward
versus reverse drive

http://ab-marine.com/feathering/auto-prop/
Dwight Veinot
C&C 35 MKII, Alianna
Head of St. Margaret's Bay, NS
d.ve...@bellaliant.net



On Wed, Jun 8, 2016 at 12:49 PM, Dennis C. via CnC-List
 wrote:
> My Universal diesel manual for Hurth HBW tranny says freewheeling won't hurt
> the tranny.  It is moot on whether to lock it.
>
> From marinedieseldirect.com for Hurth trannies:  "DO NOT LEAVE GEAR IN
> FORWARD WHEN SAILING. GEAR MUST BE IN NEUTRAL FOR FREE WHEELING OR SHIFTED
> INTO REVERSE TO LOCK PROPELLER WHILE SAILING."
>
> I always put Touche's tranny in reverse.  It has a Martec 2 blade folder.
>
> Dennis C.
>
>
>
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Re: Stus-List Transmission in forward or reverse while sailing?

[ALAN BERGEN via CnC-List]

I haven't seen my response to this thread, so here it is again:  A
transmission has to be put in reverse for a feathering prop to feather.
Then leave it in reverse.

Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR

On Wed, Jun 8, 2016 at 8:49 AM, Dennis C. via CnC-List <
cnc-list@cnc-list.com> wrote:

> My Universal diesel manual for Hurth HBW tranny says freewheeling won't
> hurt the tranny.  It is moot on whether to lock it.
>
> From marinedieseldirect.com
> 
> for Hurth trannies:  "DO NOT LEAVE GEAR IN FORWARD WHEN SAILING. GEAR
> MUST BE IN NEUTRAL FOR FREE WHEELING OR SHIFTED INTO REVERSE TO LOCK
> PROPELLER WHILE SAILING."
>
> I always put Touche's tranny in reverse.  It has a Martec 2 blade folder.
>
> Dennis C.
>
>
>
> ___
>
> This list is supported by the generous donations of our members. If you
> like what we do, please help us pay for our costs by donating. All
> Contributions are greatly appreciated!
>
>
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Re: Stus-List Transmission in forward or reverse while sailing?

[Dennis C. via CnC-List]

My Universal diesel manual for Hurth HBW tranny says freewheeling won't
hurt the tranny.  It is moot on whether to lock it.

>From marinedieseldirect.com for Hurth trannies:  "DO NOT LEAVE GEAR IN
FORWARD WHEN SAILING. GEAR MUST BE IN NEUTRAL FOR FREE WHEELING OR SHIFTED
INTO REVERSE TO LOCK PROPELLER WHILE SAILING."

I always put Touche's tranny in reverse.  It has a Martec 2 blade folder.

Dennis C.
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Re: Stus-List Transmission in forward or reverse while sailing?

[Patrick Davin via CnC-List]

Are you sure? I talked to Trans Atlantic Diesels (who sells Hurth
transmissions) last year and they told me Hurth transmissions should not be
left in reverse while sailing. I told them the prop spins in neutral, and
they replied the prop should be allowed to freewheel in neutral, and not
sailed in reverse or fwd.

This is a much debated topic though. A Google search will turn up a
thousand conflicting opinions. I'm sticking with what the people who make
and repair the transmissions say though.

-Patrick
1984 C&C Landfall 38

On Wed, Jun 8, 2016 at 5:19 AM,  wrote:

> From: Gary Russell 
> To: "C&C List" 
> Cc:
> Date: Wed, 8 Jun 2016 07:16:57 -0400
> Subject: Re: Stus-List Transmission in forward or reverse while sailing?
>
> The answer may depend on what make of transmission you have, but my Hurth
> transmission recommends reverse.  If your prop is spinning in forward, I
> would suggest that is not good.  I would recommend reverse.  Some
> transmission, I'm told, have the oil pump on the input shaft, so there is
> no lubrication when the engine is stopped.  That's one reason you want to
> make sure the prop is not free-wheeling.  The other reason, of course, is
> drag.
>
> Gary
> S/V Kaylarah
> '90 C&C 37+
> East Greenwich, RI, USA
>
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Re: Stus-List Transmission in forward or reverse while sailing?

[ALAN BERGEN via CnC-List]

If you have a feathering prop, you have to put it in reverse in order to
feather the prop.  Once it's feathered, the shaft will stop rotating.  Even
without a feathering prop, you don't want the shaft turning when the engine
isn't running.

Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR

On Wed, Jun 8, 2016 at 7:07 AM, mike amirault via CnC-List <
cnc-list@cnc-list.com> wrote:

> On my C&C33ii with Martec folding prop, I pop it into reverse for a second
> and it will stop rotating. Then I  shift to neutral and it does not rotate.
>
> Mike Amirault
> C&C33ii Lovely Cruise
> SMSC NS
>
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> Contributions are greatly appreciated!
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Re: Stus-List Transmission in forward or reverse while sailing?

[mike amirault via CnC-List]

On my C&C33ii with Martec folding prop, I pop it into reverse for a second and 
it will stop rotating. Then I  shift to neutral and it does not rotate.

Mike Amirault
C&C33ii Lovely Cruise
SMSC NS___

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Re: Stus-List Transmission in forward or reverse while sailing?

[Paul Baker via CnC-List]

It depends on your transmission and engine. Yanmar had a bulletin a while back 
for their engines with Kanzaki transmissions stating that they should always be 
in neutral when sailing. Damage or wear to the transmission would occur 
otherwise. 
Cheers,
Paul. 

> Date: Wed, 8 Jun 2016 06:36:50 -0400
> To: cnc-list@cnc-list.com
> Subject: Stus-List Transmission in forward or reverse while sailing?
> From: cnc-list@cnc-list.com
> CC: ghnewt...@gmail.com
> 
> Which gear is recommended (forward or reverse) while sailing? When the 
> transmission is in forward I can feel the shaft turning while sailing. When 
> it is in reverse I don't feel it. Which is preferred?
> 
> Sent from my iPad
> ___
> 
> This list is supported by the generous donations of our members. If you like 
> what we do, please help us pay for our costs by donating. All Contributions 
> are greatly appreciated!
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Re: Stus-List Transmission in forward or reverse while sailing?

[Russ & Melody via CnC-List]

The Kanazaki  tranni on my Yanmar 2QM* will spin in forward, so 
reverse is the best choice.


Cheers, Russ
Sweet 35 mk-1

At 03:36 AM 08/06/2016, you wrote:
Which gear is recommended (forward or reverse) while sailing? When 
the transmission is in forward I can feel the shaft turning while 
sailing. When it is in reverse I don't feel it. Which is preferred?


Sent from my iPad
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Re: Stus-List Transmission in forward or reverse while sailing?

[David Knecht via CnC-List]

Mine recommends reverse but also says the transmission will be damaged if left 
in forward.  Not sure why.  Dave

On Jun 8, 2016, at 7:16 AM, Gary Russell via CnC-List  
wrote:

> 
> The answer may depend on what make of transmission you have, but my Hurth 
> transmission recommends reverse.  If your prop is spinning in forward, I 
> would suggest that is not good.  I would recommend reverse.  Some 
> transmission, I'm told, have the oil pump on the input shaft, so there is no 
> lubrication when the engine is stopped.  That's one reason you want to make 
> sure the prop is not free-wheeling.  The other reason, of course, is drag.
> 
> Gary
> S/V Kaylarah
> '90 C&C 37+
> East Greenwich, RI, USA
> 
> 
> ~~~_/)~~
> 
> 
> On Wed, Jun 8, 2016 at 6:36 AM, Gary Newton via CnC-List 
>  wrote:
> Which gear is recommended (forward or reverse) while sailing? When the 
> transmission is in forward I can feel the shaft turning while sailing. When 
> it is in reverse I don't feel it. Which is preferred?
> 
> Sent from my iPad
> ___
> 
> This list is supported by the generous donations of our members. If you like 
> what we do, please help us pay for our costs by donating. All Contributions 
> are greatly appreciated!
> 
> ___
> 
> This list is supported by the generous donations of our members. If you like 
> what we do, please help us pay for our costs by donating. All Contributions 
> are greatly appreciated!

Dr. David Knecht
Professor of Molecular and Cell Biology
Core Microscopy Facility Director
University of Connecticut   
91 N. Eagleville Rd.
Storrs, CT 06269
860-486-2200

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Re: Stus-List Transmission in forward or reverse while sailing?

[Gary Russell via CnC-List]

The answer may depend on what make of transmission you have, but my Hurth
transmission recommends reverse.  If your prop is spinning in forward, I
would suggest that is not good.  I would recommend reverse.  Some
transmission, I'm told, have the oil pump on the input shaft, so there is
no lubrication when the engine is stopped.  That's one reason you want to
make sure the prop is not free-wheeling.  The other reason, of course, is
drag.

Gary
S/V Kaylarah
'90 C&C 37+
East Greenwich, RI, USA


~~~_/)~~


On Wed, Jun 8, 2016 at 6:36 AM, Gary Newton via CnC-List <
cnc-list@cnc-list.com> wrote:

> Which gear is recommended (forward or reverse) while sailing? When the
> transmission is in forward I can feel the shaft turning while sailing. When
> it is in reverse I don't feel it. Which is preferred?
>
> Sent from my iPad
> ___
>
> This list is supported by the generous donations of our members. If you
> like what we do, please help us pay for our costs by donating. All
> Contributions are greatly appreciated!
>
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Stus-List Transmission in forward or reverse while sailing?

[Gary Newton via CnC-List]

Which gear is recommended (forward or reverse) while sailing? When the 
transmission is in forward I can feel the shaft turning while sailing. When it 
is in reverse I don't feel it. Which is preferred?

Sent from my iPad
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