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Old 07 March 2005, 05:16   #1
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Country: Ireland
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Boat name: Platypus
Make: Parker 630
Length: 6m +
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Transom Bracket Questions

I'm about to embark on fitting a Garelick Transom bracket to support 65Kgs of
outboard.

My current plan is to "sandwich" the transom in stainless steel plates.

1) Does anyone know where I could obtain such plates (30cm X 20cm X [2.5mm?] ?

2) Any comments on the idea - are there any corrosion/electrolysis implications , the bracket is aluminium alloy.

Ian
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Old 07 March 2005, 05:29   #2
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Corrosion?

If the aluminium and stainless are submerged the aluminium will corrode in preference to the stainless. You could, of course, fit an anode to protect them both.

Even if not submerged, it is likely that water will get between the two unless some sort of gasket is used.




Quote:
Originally Posted by IanE
I'm about to embark on fitting a Garelick Transom bracket to support 65Kgs of
outboard.

My current plan is to "sandwich" the transom in stainless steel plates.

1) Does anyone know where I could obtain such plates (30cm X 20cm X [2.5mm?] ?

2) Any comments on the idea - are there any corrosion/electrolysis implications , the bracket is aluminium alloy.

Ian
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Old 07 March 2005, 13:11   #3
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Country: Ireland
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Boat name: Platypus
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Length: 6m +
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Thanks

Thanks Duncan,

I still get overwhelmed with anodes,mercathodes etc, You wouldn't think I started out studying Chemistry !!

The whole lot will be well out of the water.

I'll think about a gasket, how about a liberal coat of sikaflex??

Ian
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Old 07 March 2005, 14:31   #4
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Country: UK - England
Town: Southampton
Boat name: SMH Rib / War Shot
Make: Ribtec / Scorpion
Length: 4m +
Engine: 10hp Yam / 150hp opt
Join Date: Sep 2003
Posts: 1,894
RIBase
Sikaflex should do it.

IIRC the transom on my Searider used to have a thin stainless plate on the outside, under the outboard bracket. No problem with corrosion of either - but boat kept on trailer.

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