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Tue, January 22 2019, 18:49Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 12345678910 ]


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Date Posted: - Friday - 01/ 4/19 - 7:38pm
Author: malaga (*)
Subject: original bendex depth transducer

Does anyone know how the original Bendex transducer was install in the M31. I would like to remove it and install a new modern transducer in its place. Is it a block of wood glasses into the haul? Maybe I should leave it alone and find a alternate location for a chart plotter transducer. Any help would be aeriated.

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Replies:

[> transducer -- Caleb M31 Ardea, - Sunday - 01/ 6/19 - 6:00pm

Hi Malaga

On our boat, the original transducer is installed as you say, block of wood glassed into the hull, port side under the aft drawer. We decided to leave it in place.

I bought a cheap garmin depth sounder that came with its own transducer, designed for hanging of the stern of a runabout.

I built a small wooden surround for it very close to the old transducer, filled the surround up with vaseline and put the transducer in it. The signal is somewhat diminished I only read to about 80m but I only use it for anchoring and it works great at depths under 30m.

Photos here https://imgur.com/a/towukp0

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[> [> original bendex depth transducer -- malaga (Tom), - Monday - 01/ 7/19 - 1:45pm

Thanks for your help. Do you think the old transducer can be removed and a new through haul transducer installed in its place while Malaga is on the hard?

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[> [> [> transducer -- Caleb Ardea, - Monday - 01/ 7/19 - 6:12pm

No worries.

You could do that, I guess how hard the job would be would depend on how close the size of your new transducer is. Rough measurements of 100x70 for the transducer and 120 x 80 for the wood block. Both taper to 10mm wide at the leading edge.

On our boat it is quite hard to access the hull on the inside where the transducer is, I can feel it but not see it.

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[> [> [> [> transducer -- Malaga (tom), - Monday - 01/ 7/19 - 6:38pm

Malaga has a 5"+/- round access hole in the cabin sole right above the transducer which is located on the starboard side just aft of the head. It looks as though the transducer is set down into a caulk bedding compound attaching it down into the block of wood. I installed a water maker years ago over the top of this access hole. Once I remove the water maker I can get a better look at what's going on. It seams like this original outcrop in the haul would be a great location for a new modern transducer. Any more info related to the original installation would be great. Thanks

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