The good thing about removing a stuck Datamarine depth transducer is that it
is a smaller diameter than the transducers used with Raymarine and other
manufacturers. If you are careful and lucky, no repair to the hull will be
necessary.
Steve Thomas
C&C27 MKIII
Port Stanley, ON
C&C36 MKI
Merritt Island, FL
----- Original Message -----
From: "Bill Bina via CnC-List" <cnc-list@cnc-list.com>
To: <cnc-list@cnc-list.com>
Cc: "Bill Bina" <billbinal...@gmail.com>
Sent: Wednesday, November 25, 2015 08:18
Subject: Re: Stus-List Removal of Datamarine depth transponder
Just removed mine a few weeks ago. Actually I removed both my speed and my
depth transducers. The speed transducer was bedded with some normal type
of bedded and I had little trouble popping it out with some vigorous
pounding with a 3 pound plastic deadblow hammer.
The depth transducer was apparently bedded with 3M 5200 and nothing would
budge it even slightly. It was essentially welded in placed.
I finally gave up and used a 2 inch hole saw from outside and cut it out.
The hole saw bottomed out before it was free, so I had to stop and hack
out some of the transducer with a hammer and wood chisel before finishing
up with the holesaw, which also left me with the 2 inch hole needed for
the new transducer.
Needless to say, I bedded the new transducers with Lifeseal.
If your transducer is bedded with 5200, you will not be removing anything
suitable for repair. Defender can sell you a replacement for around $100
or so. I went with a retractable model so I can pull it mid season for
cleaning.
Bill Bina
On 11/25/2015 7:56 AM, Indigo via CnC-List wrote:
More on removal.
So I looked more closely at the transponder and found that it appeared to
be held in place with a threaded "collar" - this came off easily. However
the transponder itself won't budge. I tried to tap the top of the
transponder with a mallet, being careful not to damage the wire, but
there was no noticible movement. There is a piece of plywood bonded to
the inside of the hull which gives allows the collar to be screwed tight.
The hole through the plywood is tight against the transponder, but I
don't think tight enough to hold it in place against mallet taps.
Am I missing some other retainer - or it the through hull itself
threaded?
--
Jonathan
Indigo C&C 35III
SOUTHPORT CT
On Nov 9, 2015, at 06:32, Indigo <ind...@thethomsons.us> wrote:
I need to remove my Datamarine transponder to send it to DMI for repair.
Does anyone know how it is held in place in the through hull. I can't
see any retaining pins etc - yet it has a "t" like handle which implies
it should be removable with ease.
--
Jonathan
Indigo C&C 35III
SOUTHPORT CT
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