O'Day through-hull transducer mounting - SailNet Community

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Old 04-06-2007
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O'Day through-hull transducer mounting

I read in a posting that the depth transducer in O'Day 32' CC is not mounted in a through-hull tube, but bonded directly to the hull, and difficult to remove, but now I can't find the post. Is anyone familiar with this? The original transducer must have gone bad, and the PO used a transducer glued to the inside of the hull. The transducer seems good (it's ticking!), but it is very intermittent, and virtually useless, so I want to replace the original transducer.
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Old 04-07-2007
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Before you replace the transducer make sure the cable and wiring are good. I had a transducer on a machine i was repairing that had a bad connection on the cable that ticked intermittently.
Dennis
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Good point!

Though the transducer ticks continously when the depth finder is on, I will doubleckeck the wiring, as the PO was less than meticulous in his wiring practices, most of which I have cleaned up. I believe the problem with the in-hull transducer is its placement, as the original through-hull transducer is right on the keel-line, just forward of the keel, while the replacement transducer is mounted off to the starboard side by about a foot, so is angled both forward and to starboard, and it doesn't look like a good angle for the beam. Thanks for the response.
Anyone else out there familiar with the original through-hull transducer not being mounted in a through-hull tube, but directly sealed to the outer hull? I remember a post talking about using two pipe wrenches and a length of pipe as a "persuader" to get it off the outer hull. I would guess they use 5200, and the release agent might help, but any direct knowledge would be appreciated. She's on the hard now, so I can barrier-coat and anti-fouling paint, so it's a good time to deal with the transducer.
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