Sunstone Posted September 7, 2019 Report Share Posted September 7, 2019 I was thinking about moving up to a better transducer but how do you get the old one out and install a new one. Not sure what material that it's mounted in, a putty type material I guess. Thanks. Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 7, 2019 Report Share Posted September 7, 2019 Is your present transducer mounted ahead of the step, with access through a hole in the gas tank? If so, it's going to be a real pain the azz, but can be done. I had to make two wrenches, one to hold the transducer and another to spin the large nut. I've heard of guys using braided line to saw through the sealer/putty to separate the sealer from the fiberglass. Someone makes a solvent that dissolves sealers and putty. Quote Link to comment Share on other sites More sharing options...
Sunstone Posted September 8, 2019 Author Report Share Posted September 8, 2019 It is through the gas tank in front of the step but it's a shoot through just stuck I guess in some materiel. It was installed by a dealer out of state maybe I should call them. Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 8, 2019 Report Share Posted September 8, 2019 I ordered my boat without a transducer and installed a thru-hull transducer in the same spot. Is that what you want to do? I'm not sure what material they use to bond the shoot-thru to the hull. But, some forum member will have the answer. Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 8, 2019 Report Share Posted September 8, 2019 Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 8, 2019 Report Share Posted September 8, 2019 Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 8, 2019 Report Share Posted September 8, 2019 These are the two wrenches I had to make to hold the transducer and tighten the nut. I have them tied together for the pic. The wrench on the left holds the transducer and the wrench on the right tightens the nut. If I remember correctly, it's about 24" from the deck to the hull, then you are working through a hole in the gas tank. It was a real challenge, but I enjoy that sort of torture. Quote Link to comment Share on other sites More sharing options...
Sunstone Posted September 9, 2019 Author Report Share Posted September 9, 2019 I called BOE marine to see if they could mount a transom transducer with a toggle switch between both. That way I could run at speed with the one in front of the step and the transom at slow speeds. He said it couldn't be done. Quote Link to comment Share on other sites More sharing options...
smilemaker Posted September 9, 2019 Report Share Posted September 9, 2019 I find it hard to believe. I have a switch that I used to use that allowed one transducer to go to different displays.. many of the new machines are set up to allow multiple transducers. Look at the manual for your machine. Quote Link to comment Share on other sites More sharing options...
Sunstone Posted September 10, 2019 Author Report Share Posted September 10, 2019 On 9/8/2019 at 8:42 PM, smilemaker said: I find it hard to believe. I have a switch that I used to use that allowed one transducer to go to different displays.. many of the new machines are set up to allow multiple transducers. Look at the manual for your machine. I thought the same thing but this was their electronics guy in Md. Quote Link to comment Share on other sites More sharing options...
smilemaker Posted September 10, 2019 Report Share Posted September 10, 2019 Sunstone Out of curiosity I did some searching and came across several posts on random forums that all talked about the dangers of switching between 2 transducers. It appears that if a unit is on then you can damage it or the transducer by plugging it in. When you use a switch that is what you are actually doing. Plugging in one and unplugging the other. I would look at the back of the unit and see if it has multiple inputs. Quote Link to comment Share on other sites More sharing options...
Sunstone Posted September 10, 2019 Author Report Share Posted September 10, 2019 Thanks for the information I'll check it out. BTW it is a gen 3. Quote Link to comment Share on other sites More sharing options...
Malbrew Posted September 8, 2020 Report Share Posted September 8, 2020 On 9/8/2019 at 2:45 PM, SCFD rtrd. said: I ordered my boat without a transducer and installed a thru-hull transducer in the same spot. Is that what you want to do? I'm not sure what material they use to bond the shoot-thru to the hull. But, some forum member will have the answer. This is what I am about to do except I need to remove the current transducer and clean the surface. figured I would then drill a pilot hole from the inside then use a hole saw coming in from the bottom. doesnt look easy, but then there would be no fun if it were..... Quote Link to comment Share on other sites More sharing options...
Malbrew Posted September 8, 2020 Report Share Posted September 8, 2020 Just now, Malbrew said: This is what I am about to do except I need to remove the current transducer and clean the surface. figured I would then drill a pilot hole from the inside then use a hole saw coming in from the bottom. doesnt look easy, but then there would be no fun if it were..... assuming your transducer was 12 degree tilt? I was going to wait to see where the hole is before I order the transducer... Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 9, 2020 Report Share Posted September 9, 2020 I got in touch with Skip and he advised that the hull in that area was approximately 12 degrees. If you look at the first pic (hull and transducer) you can see that the flange of the transducer is about 1 1/2" to 2" from the center of the keel. This will give you an idea of where the pilot hole needs to be. So, 2 inches from the center of the keel plus half the diameter of the transducer. Transfer this mark to the inside and make your pilot hole. It's going to be pretty close to the center of the hole in the gas tank. If you need the two wrenches I made, let me know and I'll ship them. I used an Airmar transducer. They only come in certain tilt angles and they do make a 12 degree tilt. Quote Link to comment Share on other sites More sharing options...
smilemaker Posted September 9, 2020 Report Share Posted September 9, 2020 with how everything boating is on backorder I would not cut a hole until the transducer was in my hand. obviously 12 deg is the way to go if i was installing the transducer I would find a hole saw the diameter of the hole in the gas tank. mount it upside down on the mandrel and with the pilot drill of the mandrel make a pilot hole from the inside out. now from the outside you can check your position from the keel and adjust postion but it should be spot on. drill proper size hole for the transducer from the outside. Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted September 9, 2020 Report Share Posted September 9, 2020 Good stuff smilemaker. Just go to show you, it doesn't hurt your ears to use your head. Quote Link to comment Share on other sites More sharing options...
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