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Reattaching Transducer to boat


jeffb5.8

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Hi All

 

My Transducer is screwed on to the mount on the back of my Stacer and the screws keep coming loose, so I thought while I am doing the wheel bearings and some touch ups, I would take the time to remove the screws and replace them with bolts.

So do I use a stainless steel bolt, nut and washer or a Alloy bolt nut and washer?

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17 minutes ago, jeffb5.8 said:

IMG_5905.JPG

Hi Jeff,

Best to use 316 grade stainless steel with nylon lock nuts (that's what I did) and it won't move.

You also nee to apply Tef-Gel (it's a yellowie paste) where the different metals are touching in order to prevent corrosion as they are different metals. 

Cheers

Dave

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Mate, I bought it from BIAS Boating when they were around but I know you can buy a little tube from Ebay for around $30.

I think it sells at specialised shops. Checked Bunnings for you and comes up with nothing.

There is also a marine/boating shop in Caringbah and other Sydney branches (can't mention the name here) and they sell it too...starts with "W" :-rolleyes and they're half the price of Ebay.

Just google Tef-Gel and the shop will appear in the first few searches...

Edited by Sigma
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I don't think an ipad is a smart device. Cost of a 4G ipad is not much less than a head unit of a major brand which is designed for the environment. 

ipads will die in a boat. rough, wet and salty. Not good for ipads.

 

 

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2 minutes ago, recurve said:

I don't think an ipad is a smart device. Cost of a 4G ipad is not much less than a head unit of a major brand which is designed for the environment. 

ipads will die in a boat. rough, wet and salty. Not good for ipads.

 

 

Wrong thread?

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That's a good candidate for the humble ally rivet mate.A 2 second job and you won't need to worry about it again.That transducer sticks out that far you almost need a orange flag attached to it whilst under tow.Or use it as a diving board.

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7 hours ago, Fab1 said:

That's a good candidate for the humble ally rivet mate.A 2 second job and you won't need to worry about it again.That transducer sticks out that far you almost need a orange flag attached to it whilst under tow.Or use it as a diving board.

It helps with right hand turns too!

sounds like I will have to check the height and mark it next time I am out on the water.

should it be above / On or below the water line when at rest.

it does throws a mean spray when under way

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1 hour ago, rickmarlin62 said:

plus one on large diameter rivets..put them top and bottom of bracket if your height is set..rick

I have some alloy rivets, so that might be a good option once I confirm what height it should be at.

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1 hour ago, jeffb5.8 said:

It helps with right hand turns too!

sounds like I will have to check the height and mark it next time I am out on the water.

should it be above / On or below the water line when at rest.

it does throws a mean spray when under way

Run a straight edge rule along the bottom of the hull and lower the base of your transducer to the top of the rule.The base of the transducer should be level with the hull.

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Hi Jeff,

Once you are happy with the position of your transducer and achieved the best readings possible I'd mark the location.  Between the stainless steel transducer bracket and aluminium hull fitting, I use a cut out of a polyethlene cutting board to separate the two metals.  If using 316 stainless bolts use polyethlene washers, nylon nuts and tef gel.  Or go with the large aluminium rivets with aluminium mandrels.  Also remember to re-paint all screw holes before fixing.  Hope I'm not telling you how to suck eggs. Cheers.. Dave

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16 minutes ago, Croydon said:

Hi Jeff,

Once you are happy with the position of your transducer and achieved the best readings possible I'd mark the location.  Between the stainless steel transducer bracket and aluminium hull fitting, I use a cut out of a polyethlene cutting board to separate the two metals.  If using 316 stainless bolts use polyethlene washers, nylon nuts and tef gel.  Or go with the large aluminium rivets with aluminium mandrels.  Also remember to re-paint all screw holes before fixing.  Hope I'm not telling you how to suck eggs. Cheers.. Dave

No egg sucking from what I read, all great tips and appreciated,

I have heaps of HDPE covers here in different thickness I can cut up

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