"Thingamajig" what the heck - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 12-03-2012
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 601
Thanks: 18
Thanked 6 Times in 6 Posts
Rep Power: 7
kellysails is on a distinguished road
"Thingamajig" what the heck

This weekend I was tracing the hose for my seawater cooling system on my new boat (Yanmar 4JH5E). I was fully expecting to see the hose that leads from the heat exchanger to go directly to the mixing elbow. But no, it heads up engine room bulkhead (above waterline) to a “thingamajig” that looks like a sensor or solenoid then another line going back down to the mixing elbow. This seems strange to me and I am half tempted to put in a new short hose that goes directly from the heat exchanger to the mixing elbow. Looks to me as another single point of failure. Thoughts? What is this "thingamajig"?

The line on the right comes from the heat exchanger, the left line goes back down to the mixing elbow.
Attached Thumbnails
"Thingamajig" what the heck-sw-cooling-line.jpg  
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 12-03-2012
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 15,313
Thanks: 88
Thanked 241 Times in 232 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: "Thingamajig" what the heck

That's looks like an anti siphon device that prevents a vacuum from existing in the system.. AKA a "vented loop". Are there actually wires going to it, or do they just go by?

btw.. don't short circuit it!!
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 12-03-2012
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 601
Thanks: 18
Thanked 6 Times in 6 Posts
Rep Power: 7
kellysails is on a distinguished road
Re: "Thingamajig" what the heck

Quote:
Originally Posted by Faster View Post
That's looks like an anti siphon device that prevents a vacuum from existing in the system.. AKA a "vented loop". Are there actually wires going to it, or do they just go by?

btw.. don't short circuit it!!
There seemed to be wires going to it but I need to take another look. That was why I was kind of thinking it was a solenoid of some type. Maybe you are right though, that makes sense. I have not seen anything like it before.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 12-03-2012
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,616
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: "Thingamajig" what the heck

Aunti Syphon valve.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 12-03-2012
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 601
Thanks: 18
Thanked 6 Times in 6 Posts
Rep Power: 7
kellysails is on a distinguished road
Re: "Thingamajig" what the heck

Thanks! I bet it is. There is a grey small hose in the pic that leads off from the top to the left of the junction. I was thinking there were wires in it but I bet it leads off to a higher point in the boat. Interesting, I need to track that hose down to see where it goes. More bruised knuckles coming my way.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 12-03-2012
rugosa's Avatar
Senior Member
 
Join Date: Aug 2011
Location: In a strange land
Posts: 517
Thanks: 0
Thanked 7 Times in 7 Posts
Rep Power: 4
rugosa is on a distinguished road
Re: "Thingamajig" what the heck

Looks like this? Vetus Exhaust Systems Air Vents
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 12-03-2012
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 601
Thanks: 18
Thanked 6 Times in 6 Posts
Rep Power: 7
kellysails is on a distinguished road
Re: "Thingamajig" what the heck

Quote:
Originally Posted by rugosa View Post
It sure does, wow, nice. And within the description some valuable advice:

AIRVENTV model has a pressure valve and is self contained. It does require periodic maintenance to prevent clogging with salt crystals.

Thanks very much!
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 12-03-2012
svHyLyte's Avatar
Old as Dirt!
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,834
Thanks: 15
Thanked 116 Times in 110 Posts
Rep Power: 7
svHyLyte is on a distinguished road
Re: "Thingamajig" what the heck

Quote:
Originally Posted by kellysails View Post
This weekend I was tracing the hose for my seawater cooling system on my new boat (Yanmar 4JH5E). I was fully expecting to see the hose that leads from the heat exchanger to go directly to the mixing elbow. But no, it heads up engine room bulkhead (above waterline) to a “thingamajig” that looks like a sensor or solenoid then another line going back down to the mixing elbow. This seems strange to me and I am half tempted to put in a new short hose that goes directly from the heat exchanger to the mixing elbow. Looks to me as another single point of failure. Thoughts? What is this "thingamajig"?

The line on the right comes from the heat exchanger, the left line goes back down to the mixing elbow.
Anti-siphon valve with plastic cover tabs covering the ends of the hose clamps that hold the hoses in place.
__________________
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 12-03-2012
rugosa's Avatar
Senior Member
 
Join Date: Aug 2011
Location: In a strange land
Posts: 517
Thanks: 0
Thanked 7 Times in 7 Posts
Rep Power: 4
rugosa is on a distinguished road
Re: "Thingamajig" what the heck

That valuable information might be in your owner's manual/dvd/webpage or might not. There was likely some installation & maintenance instructions in the box/bag when installed, but way too often that stuff ends up in the assembly shop trash. Better to know and plan for preventative maintenance than be caught in a gale with your pants down
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 12-03-2012
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 601
Thanks: 18
Thanked 6 Times in 6 Posts
Rep Power: 7
kellysails is on a distinguished road
Re: "Thingamajig" what the heck

Quote:
Originally Posted by rugosa View Post
That valuable information might be in your owner's manual/dvd/webpage or might not. There was likely some installation & maintenance instructions in the box/bag when installed, but way too often that stuff ends up in the assembly shop trash. Better to know and plan for preventative maintenance than be caught in a gale with your pants down
Boy, am I sooo glad I asked the question and now know that I need to also give it a periodic vinegar bath. I did look in my Beneteau manual and 4JH5E operation and parts manual, nada. I do try to research (RTFM) prior to posting questions

We did sort through all the random manuals that came with the boat, a stack 4 feet high. First removed all the versions that are not in english, 70% reduction right there.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
"Seacock" vs. "ballcock" or "ball valve?" SEMIJim Gear & Maintenance 18 09-02-2013 06:31 PM
VIDEO: Coast Guard Academy Welcomes "Blue Goose" and "Stormy Petrel" - Patch.com NewsReader News Feeds 0 07-28-2012 08:50 AM
C270 Main Sail "stack Pack", Quick Cover", "lazy Bag" Install randy22556 Catalina 1 02-28-2007 12:53 PM


All times are GMT -4. The time now is 08:25 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.