Very pitted aluminum tansom----help

[rirory]

Hi folks---need some advice. Bought a 1985 SEA NYMPH 175 FISH & SKI---stripped out foam, currently working on rotted transom. Wet transom plywood is out, new is cut. I had planned on Glu-Vitting the inside aluminum transom before i attached new plywood-----noticed the center part of transom aluminum is very pitted. My thoughts are to glu-vit area, then 5200 a small piece (6'' x 8')' of aluminum over that area. The transom plywood will be against that new piece. I have a 2'x2' 3/16'' sheet to go on the outside of the transom, and the cap over the whole thing.

i have re-built many transoms--just never had this much pitting. i worry more about leaks than structure here.

what do you guys think???

thank you

 

[jigngrub]

Re: Very pitted aluminum tansom----help

I would clean the pitted area with a wire cup brush or wheel in a grinder or drill, then skim the area with JB Weld or Loctite marine epoxy. Then Gluvit over that after it's cured. The JB weld or Loctite will reinforce any weak or thin spots.

The pitting is from galvanic corrosion caused by water standing/trapped between the wood and metal, the Gluvit between the wood and metal will prevent this from happening in the future.

 

[Woodonglass]

Re: Very pitted aluminum tansom----help

I'm just a "Tinny-Wanna-B" but... my next door neighbor is a 25 yr Autobody pro and he tells me this is some of the best stuff he has ever used for patching and repairing aluminum. Just thought I'd pass it along...
http://www.autobodytoolmart.com/usc-all-metal-premium-aluminum-filled-auto-body-filler-p-14787.aspx

 

[rirory]

Re: Very pitted aluminum tansom----help

Thank you so much. I had some Marine-Tex I had never used before---It worked perfectly. Now it is ready for Steel-Flex or Glu-Vit

Pic's soon to follow

ri rory

 

[byteman]

Re: Very pitted aluminum tansom----help

I used Marine-Tex as well and so far I have not been disappointed