Cracked Mast Step
Hull #: 257
Shortly after taking delivery of “Sound of Silence” hull #257 in July 2000, we noticed some cracks and apparent corrosion around the circumference of the mast step [collar] that sits at the base of the mast and is attached to the cabin roof [and compression post below]. The mast fits into the collar and is held in place by a lip that goes all the way around. There is a drawing of the part on page 26 of the Catalina manual.
There are 8 stainless clevis pins that protrude upward through 10 holes [two holes unused]. These pins, which support halyard turning-blocks, are the source of the dissimilar-metal type corrosion that occurred on our boat and on at least 3 or 4 others I have heard of. The corrosion, in just a few months, caused our mast step to crack completely