Heat or not to removed seized screws?
I wanted to remove the mainsail from the track on the boom of my 1975 Newport 28, but the screws (stainless) were seized up in the boom (aluminum). What I wanted to do was remove the four screws holding the cap onto the end of the boom so that I could slide out the outhaul car and then the sail. What I ended up doing was removing the boom from the boat and sliding out the sail from that end. I couldn't move those screws either, but the slot was open on that end.
So I really don't need to remove those screws, but I'd like to have everything working as it should, and it's a lot more convenient to be able to remove the sail without taking the boom off the gooseneck (though that's not a big deal either).
Now I've got the boom on sawhorses in my garage, the sail is off and the outside of the screw heads have been soaked with PB Blaster. I can't get to the inside to apply any Blaster there, so I'm looking at using an impact screwdriver and hoping some of the Blaster can get in from the outside.
My question is should I use heat from a torch or not before using the impact screwdriver?
S/V Free Spirit
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