Bertram 25. Help me evaluate transom now that keyholes are open

Questions about boat repairs with our resins and fiberglass: hull patches, transoms and stringers, foam, rot etc.
Fuzz
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by Fuzz »

Never tried to cooking thing so I have no advice there. I do know when I cut plugs out of two different transoms it was clear one was good and one was not. If the plug looks like brand new wood you are good. If the plug is black, wet or soft it needs to come out. Down low or close to openings are the suspect spots.

fallguy1000
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by fallguy1000 »

ttownthomas wrote: Mon Nov 16, 2020 11:36 am I like the heat idea. Why not sand off the whole inside layer of glass and if it is in moderately good condition use your heat technique to dry it out. Then epoxy over the bare wood and let it soak up the resin? Or does the fact that it is pretty buttoned up allow it to heat up in a way that an opened transom wont allow?
Works even better the way you suggest and less migration to hull sides.

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ttownthomas
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by ttownthomas »

I have one of those laser temperature guns. Ill be sure to babysit it and closely monitor the temperature. It's gonna take awhile to sand off all that glass. (wonder if I can chisel it away from the ply without too much damage.) THis way, I assume, If the plywood is in decent shape I can re-soak it in resin to stiffen it up.

ttownthomas
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by ttownthomas »

Ok. after exposing some of the core I decided to replace the core with coosa. Did the engine bed while I was at it. The transom was 1.5" thick and the engine bed was 1"

Imagetransom - 1 by ttownthomas, on Flickr

Imagetransom - 1 (1) by ttownthomas, on Flickr

Imagetransom - 1 (2) by ttownthomas, on Flickr

Imagetransom - 1 (3) by ttownthomas, on Flickr

Imagetransom - 1 (4) by ttownthomas, on Flickr

Imagetransom - 1 (5) by ttownthomas, on Flickr

Imagetransom - 1 (6) by ttownthomas, on Flickr

Imagetransom - 1 (7) by ttownthomas, on Flickr

Imagetransom - 1 (8) by ttownthomas, on Flickr

Imagetransom - 1 (9) by ttownthomas, on Flickr

Imagetransom - 1 (10) by ttownthomas, on Flickr

Imagetransom - 1 (11) by ttownthomas, on Flickr

Imagetransom - 1 (12) by ttownthomas, on Flickr

Imagetransom - 1 (13) by ttownthomas, on Flickr

Imagetransom - 1 (14) by ttownthomas, on Flickr

fallguy1000
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by fallguy1000 »

Glass plans? Things look good.
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ttownthomas
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by ttownthomas »

Yes, glass is next-ish. I got tired of sitting in the bilge and moved onto the topsides. Must have filled 200 holes already on the front deck, the top of the forward area in front of the helm and the top of the gunnels. The patching is nearly complete, and Im re-constructing all the original side panels that were made of malamine

fallguy1000
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by fallguy1000 »

Now, how do the engines mount? I see no engine mount/stringer.
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ttownthomas
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by ttownthomas »

They are inline 6's So fairly long. The aft end of the engine mounts on 2 pegs that are part of the inner transom plate and forward they have adjustable stands that screw down to the engine bed that is the flat part on the forward end of the bilge.

ttownthomas
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by ttownthomas »

does this help?

Imagetransom - 1 (15) by ttownthomas, on Flickr

fallguy1000
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Re: Bertram 25. Help me evaluate transom now that keyholes are open

Post by fallguy1000 »

Interesting there is no aft mount. Carry on!
My boat build is here -------->

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