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[Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM

Alexandre Uster von Baar <uster@...>

Good afternoon Alex,

Here is a picture of the anti- siphon on my vessel, I have the Volvo TMD 22 P
http://www.nikimat.com/volvo_tmd22p_missing_hoses/volvo_tmd22p_missing_hoses_4.jpg
Don’t look at the arrows, they are for something else.
The BIG black hose is the exhaust.
Behind it is a yellow/black hose going to the top of the picture to a metallic half circle, that is the anti- siphon.

I will also sent you directly via email a page of the SM2K Owner Manual showing the Yanmar anti- siphon.
Let me know if you receive it.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Club Nautico de San Juan, Puerto Rico



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

Show quoted text

On Wed, 9/7/16, alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

 Subject: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM
 To: amelyachtowners@...
 Date: Wednesday, September 7, 2016, 2:32 PM

       Good
 afternoon, does anyone have
 images or a diagram of an anti- siphon installation
 on the raw water side of the engine cooling system? I am
 considering this step in addition to a few others to avoid
 water backing into the engine exhaust system on the Yanmar
 4JH4-HTE (repowered) on our Older Maramu.
 Alex PaquinSIMPATICOOlder Maramu Hull #94,
 1981

         Posted by: alex.paquin@...

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Alejandro Paquin

#29119

Dear Alexander,
Many thanks for your email, very interesting thank you. Was this an original Amel installation on your boat?
One question, I don´t see a breathing (venting) valve on either loops. Can it work that way?
I enjoy very much your very orderly way of describing and documenting your work onboard. Very useful indeed.
Best regards,
Alex Paquin

Show quoted text

-----Original Message-----
From: Alexandre Uster von Baar [mailto:uster@...]
Sent: Wednesday, September 07, 2016 5:54 PM
To: amelyachtowners@...
Cc: alex.paquin@...
Subject: Re: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM

Good afternoon Alex,

Here is a picture of the anti- siphon on my vessel, I have the Volvo TMD 22 P http://www.nikimat.com/volvo_tmd22p_missing_hoses/volvo_tmd22p_missing_hoses_4.jpg
Don’t look at the arrows, they are for something else.
The BIG black hose is the exhaust.
Behind it is a yellow/black hose going to the top of the picture to a metallic half circle, that is the anti- siphon.

I will also sent you directly via email a page of the SM2K Owner Manual showing the Yanmar anti- siphon.
Let me know if you receive it.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Club Nautico de San Juan, Puerto Rico

--------------------------------------------
On Wed, 9/7/16, alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

 Subject: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM
 To: amelyachtowners@...
 Date: Wednesday, September 7, 2016, 2:32 PM

       Good
 afternoon, does anyone have
 images or a diagram of an anti- siphon installation  on the raw water side of the engine cooling system? I am  considering this step in addition to a few others to avoid  water backing into the engine exhaust system on the Yanmar  4JH4-HTE (repowered) on our Older Maramu.
 Alex PaquinSIMPATICOOlder Maramu Hull #94,
 1981

         Posted by: alex.paquin@...

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Alexandre Uster von Baar <uster@...>

#29127

Good morning Alex,

I took 6 pictures and posted them on:
http://nikimat.com/volvo_tmd22p_siphon_break.html

It shows you the flow of the water, the last 3 pictures will show you the detail of the Syphon Break, with the little pipe that allow air and actually make it a “syphon break”.

Hope that helps!

Have a great day

Sincerely, Alexandre
SM2K #289 NIKIMAT
Club Nautico de San Juan, Puerto Rico

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

Show quoted text

On Wed, 9/7/16, 'Alex Paquin' alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

 Subject: RE: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM
 To: "'Alexandre Uster von Baar'" <uster@...>, amelyachtowners@...
 Cc: amelyachtowners@...
 Date: Wednesday, September 7, 2016, 6:01 PM

       Dear Alexander,

 Many thanks for your email, very interesting thank you. Was
 this an original Amel installation on your boat?

 One question, I don´t see a breathing (venting) valve on
 either loops. Can it work that way?

 I enjoy very much your very orderly way of describing and
 documenting your work onboard. Very useful indeed.

 Best regards,

 Alex Paquin

 -----Original Message-----

 From: Alexandre Uster von Baar [mailto:uster@...]

 Sent: Wednesday, September 07, 2016 5:54 PM

 To: amelyachtowners@...

 Cc: alex.paquin@...

 Subject: Re: [Amel Yacht Owners] SIPHON BREAK USING A VENTED
 LOOP -RAW WATER ENGINE COOLING SYSTEM

 Good afternoon Alex,

 Here is a picture of the anti- siphon on my vessel, I have
 the Volvo TMD 22 P
 http://www.nikimat.com/volvo_tmd22p_missing_hoses/volvo_tmd22p_missing_hoses_4.jpg

 Don’t look at the arrows, they are for something else.

 The BIG black hose is the exhaust.

 Behind it is a yellow/black hose going to the top of the
 picture to a metallic half circle, that is the anti- siphon.

 I will also sent you directly via email a page of the SM2K
 Owner Manual showing the Yanmar anti- siphon.

 Let me know if you receive it.

 Sincerely, Alexandre

 SM2K #289 NIKIMAT

 Club Nautico de San Juan, Puerto Rico

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

 On Wed, 9/7/16, alex.paquin@... [amelyachtowners]
 <amelyachtowners@...> wrote:

 Subject: [Amel Yacht Owners] SIPHON BREAK USING A VENTED
 LOOP -RAW WATER ENGINE COOLING SYSTEM

  To: amelyachtowners@...

  Date: Wednesday, September 7, 2016, 2:32 PM

        Good

  afternoon, does anyone have

  images or a diagram of an anti- siphon installation  on the
 raw water side of the engine cooling system? I am
 considering this step in addition to a few others to avoid
 water backing into the engine exhaust system on the Yanmar
 4JH4-HTE (repowered) on our Older Maramu.

  Alex PaquinSIMPATICOOlder Maramu Hull #94,

  1981

          Posted by: alex.paquin@...

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Bill Kinney <greatketch@...>

#29223

Alex,

This is an Amel installation.

There is no need for a valve in this installation. When the engine is running, water comes out into the cockpit drain gutter and drains away. When the engine stops, air goes in and breaks the syphon.

Those fussy little rubber valves in standard anti-syphon loops are a real source of trouble. They can fail open and spray saltwater all over your engine room, or fail closed and let water syphon back to your engine.

Bill Kinney

SM #160 Harmonie

Newport, RI, USA

Show quoted text

On Sep 7, 2016, at 19:01, 'Alex Paquin' alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

Dear Alexander,
Many thanks for your email, very interesting thank you. Was this an original Amel installation on your boat?
One question, I don´t see a breathing (venting) valve on either loops. Can it work that way?
I enjoy very much your very orderly way of describing and documenting your work onboard. Very useful indeed.
Best regards,
Alex Paquin

-----Original Message-----
From: Alexandre Uster von Baar [mailto:uster@...]
Sent: Wednesday, September 07, 2016 5:54 PM
To: amelyachtowners@...
Cc: alex.paquin@...
Subject: Re: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM

Good afternoon Alex,

Here is a picture of the anti- siphon on my vessel, I have the Volvo TMD 22 P http://www.nikimat.com/volvo_tmd22p_missing_hoses/volvo_tmd22p_missing_hoses_4.jpg
Don’t look at the arrows, they are for something else.
The BIG black hose is the exhaust.
Behind it is a yellow/black hose going to the top of the picture to a metallic half circle, that is the anti- siphon.

I will also sent you directly via email a page of the SM2K Owner Manual showing the Yanmar anti- siphon.
Let me know if you receive it.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Club Nautico de San Juan, Puerto Rico

--------------------------------------------
On Wed, 9/7/16, alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM
To: amelyachtowners@...
Date: Wednesday, September 7, 2016, 2:32 PM

Good
afternoon, does anyone have
images or a diagram of an anti- siphon installation on the raw water side of the engine cooling system? I am considering this step in addition to a few others to avoid water backing into the engine exhaust system on the Yanmar 4JH4-HTE (repowered) on our Older Maramu.
Alex PaquinSIMPATICOOlder Maramu Hull #94,
1981

Posted by: alex.paquin@...

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Alejandro Paquin

#29240

Bill and Alexandre, many thanks for sharing images and comments, all very useful and will put into effect immediately in our new engine installation.

Alex Paquin

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