Re: holes in keel
You might want to scan thru some threads in the
Starcraft owners group forum
Oddly enough I found similar drilled holes along the keel on my Jet today, while I was under the boat adjusting 2 of the bunks again.
I took it to be a drain/weep hole to keep any water that got into that triangular shaped space inside the keel, could get out. Water freezing in there could do a bunch of damage quick over 1 winter....
It is most likely not a drain for another area of the boat into, thru & out of the keel.
I am assuming it would be for a drain of some sort? But since it does take on a fair amount of water and i dont know where it is coming from, i am wondering if i should plug those up? or are they needed?
Water into the bilge & pumped over the side by the bilge pump? How much, how often? Guessing it's a finished, in use boat, not a bare hull that allows you easy access to all the interior seams & rivets. And which model 1975 SC is it? Details too please...
I wish I could help out more, but even if you post some answers to those questions, it'll still take someone else to help, am no where near that far along w/ my aluminum resto & learning curve