My mainsail Halyard
sheave is stuck (probably corrosion). The halyard
goes up, through the aluminum mast
, over a aluminum
pulley and back down the the mainsail
. I climbed the mast
(no easy feat) and tried to loosen it. I plan to dry dock
the boat in the winter (for a bottom job etc), but don't want to do it until then. I can raise the sail with lots of winching, but it's a pita.
-Here is my plan- Climb the mast again with a bag of tools. I'm inchworming the mast, and someone is taking the slack out of the 2 halyards I'm using as safety
lines. Then I plan on looping some good rope
over the mast that I've tied some foot loops in. I will then stand on those foot loops to take off tension from the halyard sheaves.
-On freeing the sheaves, I've been told torch, pb blaster, sand paper etc.
I plan on lubricating it heavy with pb blaster while tapping with a rubber mallet, then use a thin hack saw blade to fit in between the sheaves and remove corrosion
etc. I also can get a "Giant" pair of channel locks etc to maybe put some torque and break them free?
Is this idea at all feasible? Or am I just wasting a afternoon up the mast? I'd really love to free the sheave until the winter haul out
-I am attaching a pic of the sheaves (one side) and a quick drawing of my method to take off slack from the sheaves.