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Cylinder things in bottom of boat!?

Justin Gratton

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Hey everyone! this might be a stupid question, but what are the 3 cylinder type things with a wire coming out of them on either side of the engine at the bottom of the boat??
 

Betik

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Justin Gratton

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The 2 on the left, the wire broke off. The one on the right still has a wire attached with some type of plug at the end. Wondering if these are important and what they do!?
 

swatski

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Those look like shoot-through-hull transducers for a depth gauge/fish finder.
Must have been one stopped working and they decided to install a new one in a different place? If those are epoxied, I would leave those alone!

--
 

Justin Gratton

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Those look like shoot-through-hull transducers for a depth gauge/fish finder.
Must have been one stopped working and they decided to install a new one in a different place? If those are epoxied, I would leave those alone!

--
I dont plan on removing them but theyre not plugged in and i dont know where to plug them into anyways. They dont go all the way through the boat tho. Could they still be a depth / fish finder? Maybe something else?
 

swatski

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I dont plan on removing them but theyre not plugged in and i dont know where to plug them into anyways. They dont go all the way through the boat tho. Could they still be a depth / fish finder? Maybe something else?
Yes, it's a silly name "shoot-through" - the signal shoots through hull fiberglass, there is no opening/ cut-out.

--
 

subysti

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Yep. Fish finder transducers. Previous owner took the head unit and left the transducers.
 

AndyD

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I’m pretty sure they’re bilge pumps. The one on the bottom left even says “bilge” on the blue label. Possibly a stock one, a backup, and ones a replacement for an old burned up one? The first hole cuts through the engine compartment floor and the unit rests on the bottom of the boat bilge.
 

AndyD

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Although not sure why there’s no discharge hose on them :confused:
 

swatski

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I’m pretty sure they’re bilge pumps. The one on the bottom left even says “bilge” on the blue label. Possibly a stock one, a backup, and ones a replacement for an old burned up one?
I don't think so.

--
 

Scottintexas

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maybe the power to that one was on the bilge circuit ?

I agree with the transducers just very strange with the writing on the tape,

Do you have a bilge pump?
 

subysti

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They're transducers. Maybe they wrote bilge on them to make sure they were mounted in the bilge area and not somewhere there is a double hull. No hose connections = no pump.
 
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