Well, so far I have tried gun blue and rust remover from Birchwood & Casey and it would not remove most of it, so then came the bronze brush, well that got most, but still some spots that I cant get with the brush....... also tried carb cleaner(both kinds), brake cleaner, electrical parts cleaner, 409.....
I'm wondering if over cleaner may help? also is it safe for the springs inside?
I'm wondering if over cleaner may help? also is it safe for the springs inside?