What's this thing in my bilge?

[Zanie]

What is this little puck in my bilge?
There are two of them in the forward section of the bilge. same spot on both sides. Looks like a #10 screw coming out of it.
There is no marking or any indactor in this area on the outside of the boat.
What is it?

[batty]

it looks like some one left a grinding disk and covered it with resin

not sure what the heck that is. I had to go check my excalibur to see if I had that there but I dont . its hard to say what previous owners had done to boats. I know I found a few odd things in the bilge.

good luck
Brad

[Poorsche]

Is it possible it's part of "Bonding System"?

[robyw1]

maybe a thru-hull transducer for a depth gauge? then again i don't know why there would be two.

Roby

[fund razor]

Looks like it was for mounting something else, rather than looking like some kind of transducer.

I have never seen a transducer that looked like that.

[fund razor]

maybe a thru-hull transducer for a depth gauge? then again i don't know why there would be two.

Roby

I have two... one is for the digital depth gauge in the dash and one is for the sounder.

But one of mine hangs off of the transom.

[Poorsche]

Might be a mounting plate for transducer with hole drilled and then sealed at factory for optional electronics package install.

[Smitty]

Could be a plug for a water intake port.

[Zanie]

They have been in there since the boat left the factory. The factory gray bilge paint was covering them when I got the boat.

I'm looking for a place to install a shoot thru transducer so I'll need to remove coring to do that. I was kinda hoping I could just cut one of these out to do it.

I was hoping somebody might have seen these before.
Thanks!
DS

[Strip Poker 388]

What kinda of boat is it??


It a nylock nut on it.


Maybe a zink? Guessing .Can ya see the bolt from the outside ?