So it looks like my Transom is solid I dug the complete stringer out and there is Fiberglass between it and the other mating surfaces so it didnt spread the rot to the bulkhead or transom.
I removed the transom assembly and the transom around this is solid as well so I think I am good with replacing one stringer. What I see which is STUPID is at the transom they notched the stringer so water can pass from the cavities down to the bilge and where the water passes is open bare WOOD!!!!!! DUMB to say the least! MY plan is to do as in the last photo and make a heavy duty mount but like mentioned I want to add more metal then in the photo to add rigidity and spread out the weight on the wood.

Next debockel is getting the pin out of the gimbal ring which was leaking and started this whole process. SO far heating and soaking with penetrating fluid and it wont come out. I walked away but this weekend I'll go back at it with more heat, I just don't





want to crack the gimbal ring there big $$$

The backing plate when I loosened the nuts crumbled in my hands so now I have to find another one! If anyone has a 4116-C3-S-1-F let me know. I saw a few on Ebay but I am not sure they are exact. Mine has the two holes with one elongated on the top, looks like the bravo and Alpha share the same???

The tig cups are on the bench there.
Weld that dude up.

I was waiting for the call out on that lol, LOL its a cast and badly corroded I rather just replace it with a better one lol

Have you priced a new transom assembly? May be the easy way to go then everything is nice and new.

Yes its over $3k that will be an absolute last resort.

So I am looking to glass the new stringer myself, I was planning on using glass mat 1708 with total boat epoxy resin.

https://www.totalboat.com/product/totalboat-epoxy-kits/

Any recommendations I am overlooking?

1708 has a mat backing which is not recommended for use with epoxy. It will soak up way too much resin ($$) and the strength of epoxy does not warrant the extra thickness of mat.

Something like a 12 oz biaxial cloth would be a better choice and easier to work with IMO

Is an epoxy resin what I want to a structural repair? I have done fiberglass in the past but not for a structural support like a stringer.

Yes, epoxy is very strong and when used properly (reinforced with fiberglass cloth) very suitable for structural repair.

If your transom assembly broke in 2 when on the transom, chances are your transom is soft and it broke under load... mske sure it is not the case before reassembly!