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Old 09-07-2016, 08:21 AM   #16
sdowney717
Guru
 
City: Seaford Va on Poquoson River, VA
Vessel Name: Old Glory
Vessel Model: 1970 Egg Harbor 37 extended salon model
Join Date: Jan 2016
Posts: 2,264
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.
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