does anyone can tell me what is that for?

May 17, 2004
5,704
Beneteau Oceanis 37 Havre de Grace
I was going to go with ...12 hose clamps....;)











Be honest... After reading a smart @$$ comment like that... How many of you went back and counted how many hose clamps were in the picture....:ass:
To be fair, 12 is better than 6. :)
 
  • Helpful
Likes: rgranger
Nov 6, 2006
10,102
Hunter 34 Mandeville Louisiana
a siphon break typically on the raw water outflow side of the heat exchanger. From the break to the mixing elbow
 
Apr 22, 2011
944
Hunter 27 Pecan Grove, Oriental, NC
My first big boat, a center cockpit Westerly with 4 cylinder Mercedes engine, had a strange syphon break devise that looked a little like yours. Instead of a valve that prevented raw water from going out the small hose, it had no valve and allowed a tiny flow of water to run through the hose whenever the engine was running. The water was injected into the cockpit where it could be seen as proof that the raw water was flowing through the exhaust system. The floor of the cockpit had a teak grate floor, so the wetness was not a problem. I've never seen another boat with that type of syphon break.
 
Oct 8, 2010
27
hunter 50AC Cape Canaveral
Thanks Guys, I just bought this boat will remove the engine, generator and re-due all electric and plumbing. Now give your thoughts this Hunter has 220VAC. but the only thing running out the 220V is the three air- conditioner, My plans is to change the bad Air-conditioner to 110v and replace the generator for a combined solar, wind mill with 6 lithium batteries......Is that too bad idea??
 
May 17, 2004
5,704
Beneteau Oceanis 37 Havre de Grace
Thanks Guys, I just bought this boat will remove the engine, generator and re-due all electric and plumbing. Now give your thoughts this Hunter has 220VAC. but the only thing running out the 220V is the three air- conditioner, My plans is to change the bad Air-conditioner to 110v and replace the generator for a combined solar, wind mill with 6 lithium batteries......Is that too bad idea??
It depends. A 220V air conditioner is pretty unusual for a US boat of that size. If it’s gone bad anyway replacing it with a 110V unit makes sense.

The charging sources (generator vs wind vs solar vs some combination of them) and the battery chemistry and bank size depend greatly on your intended power usage and cruising plans.
 
May 24, 2004
7,174
CC 30 South Florida
Standard safety procedure to have all hoses double clamped, but no need to wait until one breaks to replace it. Rust is not their friend.
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
23,264
CAL 35 Cruiser #21 moored EVERETT WA
allowed a tiny flow of water to run through the hose whenever the engine was running.
When I read that I thought “See honey, it’s a sail boat. When you turn on the engine, it try’s to sink itself.”

:biggrin:
 
Jan 11, 2014
13,013
Sabre 362 113 Fair Haven, NY
Benny, you're being just a little vague to the OP...

Hunter Bum:
REPLACE ALL HOSE CLAMPS!
And while you are at it, take a good look at the hoses, they may (probably) need replacing too. Instead of using cheap hardware store slotted hose clamps, use solid all SS hose clamps, like Scandvik ABA clamps.
 

capta

.
Jun 4, 2009
4,947
Pearson 530 Admiralty Bay, Bequia SVG
My first big boat, a center cockpit Westerly with 4 cylinder Mercedes engine, had a strange syphon break devise that looked a little like yours. Instead of a valve that prevented raw water from going out the small hose, it had no valve and allowed a tiny flow of water to run through the hose whenever the engine was running. The water was injected into the cockpit where it could be seen as proof that the raw water was flowing through the exhaust system. The floor of the cockpit had a teak grate floor, so the wetness was not a problem. I've never seen another boat with that type of syphon break.
There is actually an inline (marine) alarm switch available that will alarm if the seawater stops flowing to the heat exchanger. I do not see why manufacturers and owners of older boats do not have one on any seawater cooled engine.