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kjud29



Joined: 15 Feb 2012
Posts: 54
PostPosted: Tue Feb 26, 2013 9:03 am    Post subject: Fish finder on aluminum boat Reply with quote
I want to install a fish finder on my aluminum boat but do not want to drill holes for the transducer. Any suggestions? I know Humminbird sells a transom mount fish finder but I already have a fish finder and dont feel like buying another one.
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PECo



Joined: 06 Oct 2009
Posts: 5203
Location: Avon, CT
PostPosted: Tue Feb 26, 2013 9:28 am    Post subject: Reply with quote
Mount it on the bottom of your trolling motor. You'd just need a stainless steel hose clamp and some zip ties.
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kjud29



Joined: 15 Feb 2012
Posts: 54
PostPosted: Tue Feb 26, 2013 10:57 am    Post subject: Reply with quote
I dont use a trolling motor, only row boat
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SeaDog1



Joined: 21 Dec 2009
Posts: 2629
PostPosted: Tue Feb 26, 2013 11:28 am    Post subject: Re: Fish finder on aluminum boat Reply with quote
kjud29 wrote:
I want to install a fish finder on my aluminum boat but do not want to drill holes for the transducer. Any suggestions? I know Humminbird sells a transom mount fish finder but I already have a fish finder and dont feel like buying another one.


Hi,

Try making a clamp-on transducer arm such this ......



Or store bought one like this



I have one similar to the one above which I clamp to the gunwale of my wooden guide boat.
Works great ! -> Just make sure you take it off before landing your boat.

SeaDog1
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Redneckangler



Joined: 05 May 2012
Posts: 851
Location: Meriden, CT
PostPosted: Tue Feb 26, 2013 12:23 pm    Post subject: Re: Fish finder on aluminum boat Reply with quote
SeaDog1 wrote:
kjud29 wrote:
I want to install a fish finder on my aluminum boat but do not want to drill holes for the transducer. Any suggestions? I know Humminbird sells a transom mount fish finder but I already have a fish finder and dont feel like buying another one.


Hi,

Try making a clamp-on transducer arm such this ......



Or store bought one like this



I have one similar to the one above which I clamp to the gunwale of my wooden guide boat.
Works great ! -> Just make sure you take it off before landing your boat.

SeaDog1


Gotta love PVC piping. Definitely a DIY job. If you rig up something like the blue one you could even use a T-joint where the elbow is a drill 2 holes in the vertical pipe to raise and lower with a pin. Love tinkering with stuff and hate plunking down $$$$ for products that are often ill-conceived or poorly manufactured POSs.
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SeaDog1



Joined: 21 Dec 2009
Posts: 2629
PostPosted: Tue Feb 26, 2013 1:42 pm    Post subject: Reply with quote
Hi RNA,

Yes! PVC is a $$$$ saver.

Need though to drill some small air relief holes at the top and some water holes at the bottom, or the whole thing will twist up due to the air trapped inside!
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PECo



Joined: 06 Oct 2009
Posts: 5203
Location: Avon, CT
PostPosted: Tue Feb 26, 2013 2:40 pm    Post subject: Reply with quote
My guess is the PVC rig would hit its resonant frequency at speed and vibrate like crazy.
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Redneckangler



Joined: 05 May 2012
Posts: 851
Location: Meriden, CT
PostPosted: Tue Feb 26, 2013 4:03 pm    Post subject: Reply with quote
PECo wrote:
My guess is the PVC rig would hit its resonant frequency at speed and vibrate like crazy.


Probably not on a trolling motor????? Would need a sturdier material if you're talking small engine.
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PECo



Joined: 06 Oct 2009
Posts: 5203
Location: Avon, CT
PostPosted: Tue Feb 26, 2013 4:59 pm    Post subject: Reply with quote
You could fabricate an aluminum bracket for your transducer and attach it to the hull using Alumiweld:

http://www.alumiweld.com/

NWDarkcloud (aka Bob) uses the stuff a lot. It works really well.
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Redneckangler



Joined: 05 May 2012
Posts: 851
Location: Meriden, CT
PostPosted: Tue Feb 26, 2013 5:31 pm    Post subject: Reply with quote
Cool. I thought TIG welding was about your only option for aluminum, and out of my skillset!
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SeaDog1



Joined: 21 Dec 2009
Posts: 2629
PostPosted: Tue Feb 26, 2013 5:46 pm    Post subject: Reply with quote
PECo wrote:
You could fabricate an aluminum bracket for your transducer and attach it to the hull using Alumiweld:

http://www.alumiweld.com/

NWDarkcloud (aka Bob) uses the stuff a lot. It works really well.


Hi Phil,

Thanks for the FYI -> Looks like cool stuff !

SeaDog1
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NWDarkcloud



Joined: 23 Apr 2012
Posts: 474
PostPosted: Tue Feb 26, 2013 6:17 pm    Post subject: Reply with quote
Ive used http://www.alumiweld.com/ for years . Its not realy a weld more like soldering but its cool stuff for fabrication and repairs. Fairly easy to use heres some Utube links for useing it http://www.youtube.com/results?search_query=alumiweld&oq=alumiweld&gs_l=youtube.12..0i10j0j0i10j0j0i10l5j0.3609.3609.0.8344.1.1.0.0.0.0.141.141.0j1.1.0...0.0...1ac._R_kw3C1v7w
when done right it holds up real well Ive got items ive made that have held up for 15 years now.
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jimbojonez



Joined: 04 Feb 2012
Posts: 295
Location: Berlin/Kensington
PostPosted: Tue Feb 26, 2013 7:14 pm    Post subject: Reply with quote
glad i found this. i was chiseling ice out of a 12 ft Starcraft today and put some holes in it Crying or Very sad i was wondering what i was going to use to patch them ...
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Rivernut



Joined: 22 May 2010
Posts: 42
PostPosted: Tue Mar 19, 2013 10:28 am    Post subject: Reply with quote
Shoot through the hull. Find a spot near the transom that has no strakes under It. Use a small amount of silicone sealer. Only a little sensitivity is lost. Easy to remove too.
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PECo



Joined: 06 Oct 2009
Posts: 5203
Location: Avon, CT
PostPosted: Tue Mar 19, 2013 1:34 pm    Post subject: Reply with quote
Rivernut wrote:
Shoot through the hull. Find a spot near the transom that has no strakes under It. Use a small amount of silicone sealer. Only a little sensitivity is lost. Easy to remove too.

You can do that with aluminum hulls?!?! Shocked I didn't know that. . . .
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