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Leaking transducer

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jrchase11
1st Mate

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35 Posts

Initially Posted - 03/19/2011 : 07:22:09

<font face="Arial">The old transducer on my boat is leaking. I think it is just the bedding/compound that is getting old, so I probably could "re-install" it, but I would rather fill the hole. Any suggestions.

Yes, I need bottom paint.</font id="Arial">

JohnC
'87 SR/WK #5658
Fleming Island, FL

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aeckhart
Master Marine Consultant

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USA
1709 Posts

Response Posted - 03/19/2011 : 08:34:40

Yes, you defiately need need to rebed the transducer.

I would talk to a reputable repair yard about filling the hole. I'm sure it's something you could do but you'll need expert advise. However, the easiest fix is to remove, recaulk, and replace the transducer.

Edited by - aeckhart on 03/19/2011 08:37:25

GaryB
Master Marine Consultant

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USA
4311 Posts

Response Posted - 03/19/2011 : 14:09:37

Looks like something hit the edge of the transducer and broke a piece off the outer edge. In the 10 - 12 o'clock position in the picture on the left side. In the photo on the right it appears there are some scratchs in the paint in the same area where the piece is broken off.

As Al mentioned above, I'd have a reputable yard replace the transducer rather than fill in the hole.

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/19/2011 : 14:37:49

I've repaired two obsolete transducer holes in my boat and it's not that big of a job, unless the holes are in a difficult spot. The [url="http://www.westsystem.com/ss/assets/HowTo-Publications/Fiberglass-Boat-Repair-and-Maintenance.pdf"]West System Fiberglass Boat Repair and Maintenance[/url] has some good info.

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Stinkpotter
Master Marine Consultant

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Djibouti
9087 Posts

Response Posted - 03/19/2011 : 15:43:55

I too think I see a broken part of the flange that allows the tranducer to be bedded to the hull. Without it, you might not be able to get a good seal--you need pressure against the seal, induced by the "nut" on the inside. Caulk around the casing that goes through the hull is not sufficient. That might be precisely why it's leaking.

I suspect you need a new transducer, which you could mount inside the hull, to "shoot" through the fiberglass. That would let you reduce by one the number of holes below the waterline as Don suggests--always a good thing.

Edited by - Stinkpotter on 03/19/2011 15:45:50

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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.