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Topic: Installing fishfinder transducer (marine goop) HELP!  (Read 14419 times)

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Romanian Redneck

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So first of all, excuse the messy job with the goop I may have gotten carried away with it a bit.
But I wanted to get some input as I'm about to rip this thing out and start fresh. Does this look correctly installed to you? I tried to get it as far down as I could into the foam mold and I taped it down overnight along with a small amount of weight placed on top of the tape to keep it down. It feels super sturdy but appears the slightest big crooked (right side appears to be a tad lower than the left). Do you guys feel this will be an issue? I made sure to wriggle it around before it set to get all air bubbles out. The other concern is that the front of the transducer isn't buried in foam all the way. Is this a problem? I tried pressing it as far down as it would go. Even the videos online show the front of the transducer sticking out of the foam a bit.
Maybe I'm overthinking it and won't be a problem. What should I look for when testing on the water to know its not sitting in there correctly?
Does it look installed ok to you guys?
Thanks.
Paul
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rawkfish

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Do you think the bottom of the transducer is in contact with the hull?  If yes, then I think you're fine.  If not, you'll probably want to re-do it.  I wouldn't even use the foam block if I were you.  I've gooped down transducers before and all I use is a decent sized bead of goop along the bottom of the transducer from front to back and stick it down.  Then use a couple of strips of duct tape to hold it straight and in place.  The frustrating thing about goop is that it shrinks a lot while it cures.  That means it will pull in on itself and if there are big pockets of it, air pockets will form.
« Last Edit: March 17, 2012, 08:13:54 AM by rawkfish »
                
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jstonick

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There is only one requirement, no air bubbles between the transducer and the water. Air is highly a compressible, liquids and solids are not. The transducer generates a compression wave that can be absorbed/attenuated by air bubbles. Water is a non-compressable liquid which is why the foam puck is so efficient. In the end if you are happy with your sonar performance then you are done.


Romanian Redneck

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I really like Rawk's idea. I have no beef with the puck, it just seems liken it wants to spit my transducer out. Right now it has pretty visible lean to one side which tells me at least one side is in contact with the hull.
I was thinking of starting over and doing as follows:
Start with Rawk's method and just goop the transducer down without the puck and use tape to keep it down. Once dry, cut a slot down the point end of the puck, marine goop the bottom, and wrap it around the transducer. This way you have the stability of the puck but you know the transducer us touching hull.
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Romanian Redneck

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In the end if you are happy with your sonar performance then you are done.
PDX that goes along with my question, since I have nothing to compare the performance of my unit to how will I know it's "off"? I meaning it's drastically malfunctioning I'm sure I'll know, but subtilties?
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jstonick

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In the end if you are happy with your sonar performance then you are done.
PDX that goes along with my question, since I have nothing to compare the performance of my unit to how will I know it's "off"? I meaning it's drastically malfunctioning I'm sure I'll know, but subtilties?

If you are happy with the performance you are done. If it is more than good enough for you then it does not matter if it could be better. Just get out and fish.


Noah

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In the end if you are happy with your sonar performance then you are done.
PDX that goes along with my question, since I have nothing to compare the performance of my unit to how will I know it's "off"? I meaning it's drastically malfunctioning I'm sure I'll know, but subtilties?
Once you get it on the water and are fishing right next to another kayak you can see if you're both marking the same fish and if the bottom looks similar.


jgrady

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my first fish finder was on Demo for a hour till I relized it couldn't be right and if the screen not on check the Fuze ,allways needs cleaning..


Romanian Redneck

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Yeah. I think I'm gonna try Rawk's method and see what happens worse case scenario i go back to the puck. Thanks everyone.
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Pelagic

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I just goop the foam down so it will hold water inside.  When you hit the water pour some water into the reservoir and press the transducer in the water filled hole.  If you did a good job gooping the foam down, and it holds water, you will get great images with no bubbles. Just make sure you have a tight fit between the foam and the transducer.


polepole

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Do you think the bottom of the transducer is in contact with the hull?  If yes, then I think you're fine.  If not, you'll probably want to re-do it.  I wouldn't even use the foam block if I were you.  I've gooped down transducers before and all I use is a decent sized bead of goop along the bottom of the transducer from front to back and stick it down.  Then use a couple of strips of duct tape to hold it straight and in place.  The frustrating thing about goop is that it shrinks a lot while it cures.  That means it will pull in on itself and if there are big pockets of it, air pockets will form.

Yup.  What he said!!!

-Allen


fishnut

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+1 with Pelagic. Had this system for over 2 years without any water leaking or image problems.


INSAYN

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+1 with Pelagic. Had this system for over 2 years without any water leaking or image problems.

+3 Did this on all three of my kayaks.  I can swap my fish finders between all three boats.
 

"If I was ever stranded on a beach with only hand lotion...You're the guy I'd want with me!"   Polyangler, 2/27/15


islandson671

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+1 with Pelagic. Had this system for over 2 years without any water leaking or image problems.

+3 Did this on all three of my kayaks.  I can swap my fish finders between all three boats.
+ 4

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INSAYN

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To aide the application of water, I picked up a plastic syringe from the farm store to use. 
This makes adding water to the puck hole super simple.  I store the syringe in the dry bag that houses my battery so it's always with the fish finder.

 

"If I was ever stranded on a beach with only hand lotion...You're the guy I'd want with me!"   Polyangler, 2/27/15