First off it needs to be dry not wet with salt water for rust busters to work.
I would definitely use a torch to heat it, most likely off the boat. If it is all bronze parts, lots of heat wont hurt it.
Then I would spray it and whack it with hammers and punches etc...
Heating and cooling makes the metal move breaking the corrosion bonds and also then the rust busters can get in and work easier.
I suppose an antiseize would be ok to keep the threads from getting stuck again.
I have seen aluminum, copper, nickel based antiseize compounds. Or even use a marine water resistant grease.
|