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Author Topic:   Thru-hull transducer for Garmin on 88 Montauk
beaufort posted 06-07-2002 02:37 PM ET (US)   Profile for beaufort   Send Email to beaufort  
We'd like to install a thru-hull transducer. I know the downside < possible leaks, damage from trailer rollers/bunks, etc., > but would like input from anyone who has done the install.

What's the best location on my 88 Montauk? Any special prep or specific transducer that works the best? I'll be mounting a Garmin.

I've read the newest ref article but not really in depth enough on the type of transducer we'd like to install.


jimh posted 06-07-2002 08:51 PM ET (US)     Profile for jimh  Send Email to jimh     
I don't think it is a good idea but if you must, it would appear the only place in the hull where the cross section would be thin enough would be to drill through the bottom of the cockpit drain sump just in front of the motor well.

Why do you want to do this?

I cannot see any upside to this approach.

Dick posted 06-07-2002 09:43 PM ET (US)     Profile for Dick  Send Email to Dick     
I agree with jimh on this one. The transom mount works fine on my Montauk.

If you must do it. Check back through the archives, someone has done it and sent me some information, which I can't find. The info he sent me was very detailed, but a lot more work than I would go through.


Ed Z posted 06-07-2002 11:26 PM ET (US)     Profile for Ed Z  Send Email to Ed Z     
I agree with both previous responces... My dad (the first owner) put a through hull in under the front seat (just infront of console) to find it was out of the water once on plane... Then he put another one (200 mhz this time) in the rear port corner (worked fine for many years)... Problem is, I upgraded the depth sounder (to a x91) and need to install yet a third transducer (for temp and speed)... I'm going with the stern mount this time for sure... If you ever have a problem with your through hull mount (say a broken wire), how are you going to replace it.??? If it were a stern mount it would be no sweat...
Guts posted 06-08-2002 12:44 AM ET (US)     Profile for Guts  Send Email to Guts     
cs; why do you want to do this? with a low power machine? I say don't!
but if you realy want to read bottom. get a more powerfull machine, then a thru hull.
It can be done.
beaufort posted 06-08-2002 08:39 AM ET (US)     Profile for beaufort  Send Email to beaufort     
Looks like the concensus is ixnay on the thru-hull! This idea was mostly coming from my dad (he's been wrong before!).

He installs electronics on the big sailboats in the area and thought the transducer would work alot better hull mounted.

I do value the experience on this forum and will heed the advice.


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