What is this for?

[abishoff]

hey y’all. Just picked up a 2004 Stingray 190LS. I was unclogging the drain hole and open the engine bay to get it all cleaned up and I found this sitting in the water. What is if for and where does it actually belong?

 

[mr 88]

It is a transducer for a depth finder. Does the boat have a depth finder on it ? If not it may have been too much work for one of the POs to pull the wire through the wire looms in the boat . Or he bought a new one and just pitched the old ducer in the bilge. " It " belongs on a bracket on the transom with the face of the ducer flush with the hulls bottom .Useless unless you have the matching brand Fish Finder . They are brand specific unless your into splicing micro wires.

 

[Chris1956]

transducers can also shoot thru some hulls. I had one mounted in the bilge of my SeaRay sterndrive bowrider. As long as it was kept wet, it worked real well.

 

[abishoff]

It is a transducer for a depth finder. Does the boat have a depth finder on it ? If not it may have been too much work for one of the POs to pull the wire through the wire looms in the boat . Or he bought a new one and just pitched the old ducer in the bilge. " It " belongs on a bracket on the transom with the face of the ducer flush with the hulls bottom .Useless unless you have the matching brand Fish Finder . They are brand specific unless your into splicing micro wires.

I’m thinking that’s exactly what it is. It was an inner hull depth finder.

 

[mr 88]

No, it is not a in- hull or through- hull ducer. They are not shaped like what's in your picture. Most , not all people that go that route are usually fishermen and the boats reflect what they enjoy doing. Your rig does not fit that description . You can go to Airmar.com to look at all 3 types of ducers. Looks like a inexpensive model, doesn't even have a paddle wheel on it , yes I know some models use GPS for speed , doubt this is the case with what little info I have deciphered.
Actually after expanding the picture I would say the PO had somehow broke the plastic mounting "tangs " that were part of the ducer and like I said, didn't bother to take the wiring out ,easier to just pitch it in the bilge. I recently hit a submerged log, debris of some sort on Ontario and that impact ripped the plastic mounting tangs- and the metal bracket along with the the other half of the tangs are still in place on the transom. Is used for a Fishhawk down speed and depth unit. Must be happening to a lot of people as the ducers have been on company BO for a couple weeks now.Still works after I jury rigged it to a metal tubular swim platform. No choice with a charters and fishing tournaments.

 

[abishoff]

No, it is not a in- hull or through- hull ducer. They are not shaped like what's in your picture. Most , not all people that go that route are usually fishermen and the boats reflect what they enjoy doing. Your rig does not fit that description . You can go to Airmar.com to look at all 3 types of ducers. Looks like a inexpensive model, doesn't even have a paddle wheel on it , yes I know some models use GPS for speed , doubt this is the case with what little info I have deciphered.
Actually after expanding the picture I would say the PO had somehow broke the plastic mounting "tangs " that were part of the ducer and like I said, didn't bother to take the wiring out ,easier to just pitch it in the bilge. I recently hit a submerged log, debris of some sort on Ontario and that impact ripped the plastic mounting tangs- and the metal bracket along with the the other half of the tangs are still in place on the transom. Is used for a Fishhawk down speed and depth unit. Must be happening to a lot of people as the ducers have been on company BO for a couple weeks now.Still works after I jury rigged it to a metal tubular swim platform. No choice with a charters and fishing tournaments.

I located what seemed to be some sort of silicone glue piece in the hull that assume came unstuck or unglued. It was in the same shape is the flatter portion of the ducer.

 

[cptbill]

That looks just like the old transducer that's on my 270 coastal its not in use any more but someone had it just glued to the bilge. Didn't get around to removing bit yet cause it's just there not bothering anything

 

[mr 88]

I located what seemed to be some sort of silicone glue piece in the hull that assume came unstuck or unglued. It was in the same shape is the flatter portion of the ducer.

The shape of it , with the V in the front tells me it was SUPPOSED to be hung on a bracket from the transom. Now maybe the PO tried to glue it to the inside of the hull to see if it would work. I highly doubt it was made to be glued to the hull and probably [ guarantee ] didn't work installed that way. Did you look at the Airmar site for transducers ? If so look at the through hull models and you will see how they shaped differently and have a outside housing designed to allow the actual ducer be set up at the correct angle to get a reading. If you do not have the matching FF ,pull the wires and toss the ducer , its just unneeded clutter.

 

[H20Rat]

The shape of it , with the V in the front tells me it was SUPPOSED to be hung on a bracket from the transom. Now maybe the PO tried to glue it to the inside of the hull to see if it would work. I highly doubt it was made to be glued to the hull and probably [ guarantee ] didn't work installed that way.

Skimmer transducers like that one will work as a thru-hull if installed correctly. Isn't hard to do, just takes a little bit of time and epoxy.

 

[82rude]

I have my stock transducer epoxied to the bottom of my aluminum hulll (inside) and it works perfectly.

 

[Old Ironmaker]

Looks like an old transducer. The pics aren't clear on my screen. I bet a 100 it is. Not just fishermen used thru hull ducers.

 

[QBhoy]

As mentioned it’s certainly a transducer and certainly a transom Mount external one in its design.
That said. I’ve yet to come across one that doesn’t manage to shoot through the hull when mounted internally in a medium that it’s able to sound though like silicone etc.

 

[abishoff]

After doing some research. It looks to be a HawkEye transducer that was set as a Glue-In. This same transducer can also be used for the external mount. But the original owner of the boat had it as a Glue-In. I reached out to HawkEye and they recommend using some simple green the clean out the inside of the hull and remove the oily residue from underneath the engine. Then try and locate the original mounting location by looking for an area that has been sanded smooth. I’m then supposed to sand the area again to make sure the surface is fresh and use a slow-cure epoxy and re-glue it. Fingers-Crossed that I can find the original location.

 

[Chris1956]

Gee, I would test it before gluing it in. They usually don't work on all parts of the hull. They will work when wet with water, so I would test it in the orig location, and wet. If the original location works, that's fine.

If not, look for a place on the hull that looks to be plain solid fiberglass, no foam or stringers.