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Avalonjohn44

Mount Plate on Aluminum hull

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I have a aluminum Tracker 190TX that I'm getting ready to remove my stock Lowrent :P DS Fish finder and put on a Helix 7SI with the HD Transducer. Since the mounting holes for the transducer don't match up (and since I am slightly terrified of drilling holes into my new boat) I've mostly decided on using a mounting block/plate.

 

Since I don't want to put more holes in the boat, I want to epoxy the plate in place rather than screw it to the hull. Is this feasible as a long term solution or should I man up and just screw it down?

 

Second question, if epoxy is a good idea, do I need to rough up the paint first, or just go ahead and glue it down?

 

As another poster wisely said:


Thank you in advance everyone and Wayne.

 

:D

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Epoxy is somewhat OK if both surfaces are properly prepared. THEN you attach a tether to the mount plate in case the epoxy fails so you don't loose your transducer and plate.

 

I would not trust just epoxy. That is used for installation of shoot-thru transducers and they come loose sometimes. The hull will expand and contract with temp changes and the epoxy/plate won't be doing that at the same rate. That doesn't even include hull flex due to shock loads on the trailer and the water.

 

Look at this video and the next one that follows: 

 

 

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Looks good.

9 minutes ago, Wayne P. said:

I would not trust just epoxy.

 

That is what I was afraid of. I guess its time to put on my big boy pants and just drill into it. I don't trust the local shop marine shop to do the installation based on online reviews, and my BPS is a two+ hour drive one way which is a big PIA considering that this is something that I should be able to do.

 

Thanks Wayne, as always you guided me in the right direction...


 

 

 

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What I did and I'm sure you could do it with the block. I predrilled my holes and then put silicone in the holes then install the transducer and have never had issues. What I'd do is the same thing plus run a bead of silicone around the back of the block and should be worry free for years.

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