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

Bill Kinney <greatketch@...>
 

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


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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