Thread: Transducer mounting plate

That's a nice way to mount your transducers.What's 5200?

There are no screws thru the board and into the hull, just 3M Marine 5200 Adhesive/sealant. Used acetone to wipe off both the spot on the hull and the back of board then put a nice layer all over the back of the board and then tape in place. I think you need to let adhesive cure for 5 days.

I don't know exactly what is on the garage floor but it is some type of coating. Was done before I bought the house. The floor is not as neat as it looks in this pic. Very faded where it gets traffic and slicker than snot when it gets wet.


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I did the exact same thing as marine4life back in February. Spent a lot of time on the water and made some long trips down the interstate with no issues since then. I used the fast cure 3m 5200 marine adhesive. Cures in 12 hrs I believe. No holes in the hull.

Having it set back like that are you better able to keep it reading while on plane? Mine loses bottom when I run.

Originally Posted by smashdn

Having it set back like that are you better able to keep it reading while on plane? Mine loses bottom when I run.

There is a positive benefit of using any type of spacer or set-back of the xducer from the transom ...simply by the way the water flows out from under the hull pad ...



Rickie

I got my board mounted yesterday and tried to mount my transducer like your picture. I mounted it on the lower step about 12" to the right of the motor. I can't raise it enough to get the top of it above the bottom of the boat because it hit the bottom of the boat. The only way it may work on the step is to be right next to the drain plug behind the motor. Will be a problem mounting it in the center of the boat. the only other option I have is to either use enough spacers to bring it back to the edge of the transom or move it up on the transom. What should I do?

Originally Posted by deltarat

I got my board mounted yesterday and tried to mount my transducer like your picture. I mounted it on the lower step about 12" to the right of the motor. I can't raise it enough to get the top of it above the bottom of the boat because it hit the bottom of the boat. The only way it may work on the step is to be right next to the drain plug behind the motor. Will be a problem mounting it in the center of the boat. the only other option I have is to either use enough spacers to bring it back to the edge of the transom or move it up on the transom. What should I do?

There is the possibility of the xducer creating cavitation that can be a problem for the outboard directly behind the xducer ...

Off to the side any at all would help ...

Rickie

Mine does not read at high speeds but I have it that way on purpose. I use the in dash lowrance when I need the high speed read and that TD is set about 1/2 inch below the hull and angled for straight down when on plane. The HB SI transducer is slightly above the bottom of hull to help protect it and I have it angled back up pretty high to get the best side imaging while at idle speed. There is a YouTube video that shows how to set the angle to ensure it looks straight down while boat is moving slowly using a level and handful of change. This is the only boat I have set up so my knowledge is limited but I followed all the guidance I received or could find on here.



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I have been researching this for mounting my new Helix 5 SI transducer on my 1648 flat bottom. Going with no screws and 3M 5200 is a fine method, however, most of the advice I have read said it works best if the boat transom mounting location is coarsely sanded then wiped with acetone. It's also recommended to even "mill" (prob not the correct term) out some grooves/pockets in the cutting board for better adhesion.