[quote=klozhald]Screw the nylon mast pivot ball [i]off [/i] (You've done this already, right? If it is tight it will lock the DS in place. Use channel lock pliers to break it loose.) and brush off any corrosion from the threads and casting.
Liberally squirt Liquid Wrench (or something similar) at the threads in the casting and let it soak in.
Gently tap the DS with something heavy (hammer or crescent wrench) below the crossbar to help coerce the LW into the threads. The vibration helps draw the fluid in.
Do the same on the threads above the crossbar but use a small piece of wood in between the hammer and DS.
Try to unscrew the DS.
Repeat the process every hour on a Saturday until you can rotate the DS.<!-- editby --><em>Edited by klozhald on Jul 27, 2017 - 12:22 AM.</em><!-- end editby --> [/quote]
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