What are these things? - 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? 


Like Tree4Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
What are these things?

They appear to be related to the bilge. Any information would be appreciated, including how and why the item is to be manipulated. Thank you. Newbie here.
Attached Thumbnails
What are these things?-thing.jpg  
Reply With Quote Share with Facebook
  #2  
Old 04-27-2013
Senior Member
 
Join Date: May 2007
Posts: 601
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
Siamese is on a distinguished road
Re: What are these things?

Seeing where that wire runs should give you the definitive answer, but it looks like some sort of a transducer for depth sounder, speed, etc..
Reply With Quote Share with Facebook
  #3  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
Re: What are these things?

Thank you for the reply, Siamese. The wire is incomplete.
Reply With Quote Share with Facebook
  #4  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
Re: What are these things?

BTW, it is plastic, and has what appears to be a grip-like texture of lines around what seems to be a cap (all in the picture), but it also seems to be a one-piece structure that does not unscrew. I have seen these on sailboats before (without the wire) and I have to think it is a very common part on sailboats, but...

As I say, it does seem to be related to the bilge, at least due to its location
Reply With Quote Share with Facebook
  #5  
Old 04-27-2013
ReefMagnet's Avatar
Living the dream
 
Join Date: May 2008
Location: Mackay Qld AU
Posts: 85
Thanks: 3
Thanked 7 Times in 6 Posts
Rep Power: 7
ReefMagnet is on a distinguished road
Re: What are these things?

Looks like a transducer to me. If the wire goes nowhere it was probably just cut off when new instrumentation was installed. The ring looks like a locking collar.
Reply With Quote Share with Facebook
  #6  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
Re: What are these things?

Quote:
Originally Posted by ReefMagnet View Post
Looks like a transducer to me. If the wire goes nowhere it was probably just cut off when new instrumentation was installed. The ring looks like a locking collar.
Thanks for the reply, ReefMagnet. I suppose the idea that it's a transducer would suggest that it is unrelated to the bilge? Do you think? Any other thoughts you have on it, I'd really appreciate knowing. I know you may just be speculating, but still would like to hear it.
Reply With Quote Share with Facebook
  #7  
Old 04-27-2013
ReefMagnet's Avatar
Living the dream
 
Join Date: May 2008
Location: Mackay Qld AU
Posts: 85
Thanks: 3
Thanked 7 Times in 6 Posts
Rep Power: 7
ReefMagnet is on a distinguished road
Re: What are these things?

I'm only guessing, but sometimes previous owners leave the old transducers in place when they replace old and failed instruments as an easy option. The transducer is simply to provide either depth or speed information to an instrument (sometimes both combined) so has nothing to do with the bilge. If you look at the spot from outside the hull, you should see the other side of the transducer protruding through which will be either flat (for depth) or a paddle wheel (for speed).

Most instruments using through hull transducers also supply blanking plugs so the transducer can be removed for servicing. If you search around on your boat, you might find the blanking plug for it if you are lucky.
Reply With Quote Share with Facebook
  #8  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
Re: What are these things?

Quote:
Originally Posted by ReefMagnet View Post
I'm only guessing, but sometimes previous owners leave the old transducers in place when they replace old and failed instruments as an easy option. The transducer is simply to provide either depth or speed information to an instrument (sometimes both combined) so has nothing to do with the bilge. If you look at the spot from outside the hull, you should see the other side of the transducer protruding through which will be either flat (for depth) or a paddle wheel (for speed).
Do you mean if she was out of the water? (sorry if dumb question, as I say am newbie to sailing)

Quote:
Originally Posted by ReefMagnet View Post
Most instruments using through hull transducers also supply blanking plugs so the transducer can be removed for servicing. If you search around on your boat, you might find the blanking plug for it if you are lucky.
I have something that looks like this but without the wire, so I bet that must be what you're talking about.

I am getting a small amount of water that occasionally comes up around the transducer, ReefMagnet, and since the transducer appears to be very nearly in line over where the bilge would be, I'd assumed it was happening as a result of a blockage in the bilge channel. But do you think it could be somehow seeping up from the transducer wire, and not the bilge?
Reply With Quote Share with Facebook
  #9  
Old 04-27-2013
RocketScience's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Home Port Seattle
Posts: 158
Thanks: 1
Thanked 4 Times in 4 Posts
Rep Power: 6
RocketScience is on a distinguished road
Re: What are these things?

Quote:
Originally Posted by ReefMagnet View Post
...Most instruments using through hull transducers also supply blanking plugs so the transducer can be removed for servicing. If you search around on your boat, you might find the blanking plug for it if you are lucky.
And to add to this (since you yourself admitted to being a newbie), do not attempt to remove said transducer unless the boat is out of the water, or you have said blanking plug on hand to IMMEDIATLY install in its place.

EDIT: Sorry, my post was seconds late. Looks like you're gettin' it figured out...
__________________
Rob
Wauquiez Pretorien 35

Last edited by RocketScience; 04-27-2013 at 08:49 PM.
Reply With Quote Share with Facebook
  #10  
Old 04-27-2013
Junior Member
 
Join Date: Apr 2013
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
OleSwole is on a distinguished road
Re: What are these things?

Thank you, Rocket Science. Very valuable information for anyone to know, right there.
Reply With Quote Share with Facebook
Reply


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
Cal 34 things to look for HDChopper Cal 8 11-04-2011 08:39 PM
Things gone right wescarroll Gear & Maintenance 8 08-09-2008 12:21 PM
Things the sea has taken Fearless General Discussion (sailing related) 88 03-01-2007 04:28 PM
First things First paulk Seamanship & Navigation 12 02-24-2002 01:38 PM


All times are GMT -4. The time now is 02:35 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.