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Water through the altimeter

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fmarcelino
1st Mate

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USA
37 Posts

Initially Posted - 06/01/2013 : 15:25:42

Hello Group,

Well I found out where the water was coming from. I appear to have a slow leak through the altimeter. It's not coming from the base but rather running slowly down from the threaded part.

Any ideas on how to fix this? Am I going to have to take the boat out of the water and fix it from the outside?

Thanks in advance

Owner 1982 Catalina 25 (Bel Canto), 89 Merc 9.9hp outboard
Read about my sailing adventures on my photo diary at:
https://belcantosailingphotos.shutterfly.com/

Edited by - on

shnool
Former Capri-25 Tech Editor

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USA
1032 Posts

Response Posted - 06/01/2013 : 16:12:27

I am going to ask, because I can only guess...
Altimeter? You mean this?

Or one of these 2:

If one of the ladder... um, leaking where, at the bulkhead, or through the hull below the waterline?

If the former... um.. did you achieve flight? New meaning to planing ;) Just kiddin...

Seriously though, above the waterline, leaks can be sealed by rebedding with decent butyl tape. If below (you may be able to do it there as well with butyl tape), but I personally feel better with 3M 4200.

Edited by - shnool on 06/01/2013 16:16:44

awetmore
Master Marine Consultant

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USA
1144 Posts

Response Posted - 06/01/2013 : 16:49:24

I think he means the depth transducer. If that is the case then I think you'd need to haul the boat to properly fix it.

If it is a combined depth/speed transducer then it may be a leak in the gasket for the insert. You could check that by pulling the insert (as if you were going to clean the paddle wheel) and put in the blanking plug. If the leak stops then it is a seal on the insert.

Edited by - on

fmarcelino
1st Mate

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USA
37 Posts

Response Posted - 06/01/2013 : 17:07:38

It is at the transducer. Sorry i'm not use to the terminology.

I guess i'm going to have to get a marina involved to ffix it then. I was really hoping to not have to take it out of the water.

Thanks for the input.

Edited by - on

fmarcelino
1st Mate

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USA
37 Posts

Response Posted - 06/02/2013 : 17:39:43

So I went to the boat this afternoon to check on the transducer, and it looks like it fixed itself.
Is that something that could happen?

The thread was still a little moist, but it didn't definitely wasn't seeping through.

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shnool
Former Capri-25 Tech Editor

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USA
1032 Posts

Response Posted - 06/02/2013 : 19:12:44

So wait, did you just put the boat in perhaps, and it leaked for a while then stopped?

Someone best described this process of going from the hard to the water as "settling" if that is the case. Once a boat goes from on the hard, to the in the water, the whole boat gets more "evenly" supported by the water. Things flex some, sometimes stuff leaks for a bit, then doesn't.

But it'd make me quite nervous if something "fixed itself," as critical as a below the waterline leak.

Do you have an automatic electric bilge pump? if you do, consider a "cycle counter" for that. It'll let you know if your bilge pump is working overtime.

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tweeet65
1st Mate

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USA
55 Posts

Response Posted - 06/03/2013 : 11:57:48

Tis a fast boat indeed what makes use of the altimeter...

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 06/03/2013 : 13:10:16

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by tweeet65
 Tis a fast boat indeed what makes use of the altimeter...
<hr height="1" noshade id="quote"></blockquote id="quote">

Yeah, it must really fly!

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fmarcelino
1st Mate

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USA
37 Posts

Response Posted - 06/04/2013 : 06:20:11

har har har...

I just got my terminology mixed up. I worked for a company that made an underwater autonomous vehicle and it had an altimeter which it used to measure the distance to the bottom to keep it from smashing into the bottom of the ocean so that's where I screwed up my terminology.

geesh... :)

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 06/04/2013 : 06:37:26

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.