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#6211633 - 05/21/11 02:35 PM Changing out a rotten transom on an aluminum jon boat.........
ogles824 (aka Lakewaydr50) Offline
Extreme Angler

Registered: 12/11/05
Posts: 1715
Loc: NETX
I've been working on my duck boat / backwater fishing boat project today and need a little help. The transom wood is rotten and needed replacing so I tore it out this morning and this is how it started.....

Removed all the way......

Plywood thickness about 1 inch.......

From the back side.......

I am thinking about replacing the wood with 2 pieces of half inch treated plywood glue together. My biggest question is what fasteners should I use to replace these aluminum rivets, that won't leak or rust?
_________________________
Isaiah 40:31 "but those who hope in the Lord will renew their strength. They will soar on wings like eagles, they will run and not grow weary, they will walk and not be faint.
"Tournament bound in 2014"

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#6211669 - 05/21/11 02:57 PM Re: Changing out a rotten transom on an aluminum jon boat......... [Re: ogles824 (aka Lakewaydr50)]
nax Offline
TFF Team Angler

Registered: 01/25/07
Posts: 4276
Loc: Grand Junction, Colorado
I'm not sure what type of fasteners to use (maybe a nut/bolt combination of some sort, or try and find replacement rivets?), but I would imagine a good marine sealant would be a good idea when you put the hardware in.
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#6211919 - 05/21/11 04:51 PM Re: Changing out a rotten transom on an aluminum jon boat......... [Re: nax]
sbump26 Offline
Extreme Angler

Registered: 03/10/04
Posts: 1702
Loc: Arlington, TX
Stainless steel screws and use some sealant on the threads and around the entrance holes. I would clean around the holes on the aluminum side real good and maybe sand around them about a 1/2 or so with about 80 grit paper and either use Marine silicone or some of that GOOP stuff Hoppy raves about. When I did mine like yours, I used two pieces of plywood and painted with oil base paint, two coats. It peeled after a couple of years so I should have used some resin either epoxy or polyester. That's what I would do, use some polyester resin and paint the plywood all over, especially the edges with the resin and let it cure good before assembly.
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Put the plug in.

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#6213566 - 05/22/11 09:17 AM Re: Changing out a rotten transom on an aluminum jon boat......... [Re: sbump26]
quit Offline
Pro Angler

Registered: 06/04/09
Posts: 840
Loc: nw Harris County
I would use 2 thicknesses of 3/4" marine plywood or a piece of pressure treated 2x8. Stainless steel bolts with stainless washers and lock washers, sealed with a good marine water proof adhesive should do the job, better than factory. Prime then paint it all for protection from water and sun.
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Ray Nicholas noli illegitimi carborundum

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#6214557 - 05/22/11 03:49 PM Re: Changing out a rotten transom on an aluminum jon boat......... [Re: quit]
redchevy Offline
TFF Team Angler

Registered: 01/25/05
Posts: 3901
Loc: texas
I wouldnt do the screws, nuts and bolts with washers works great for me. I also like the 2x8 or 2x10 instead of plywood, but either way will work.

matt

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