The through bolts in the mast
that connect the toggle ends of the rod rigging
are prone to failure on those years in general. THis usually causes the loss of the rig.
THe caps that capture the rod rigging
ends on the mast
are held to the mast with an aluminum
double ended bolt, the caps just screw onto it. Since there are internal halyards on those models any boats with wire/line halyards run the risk of sawing those through bolts in half, especially if the halyards have been run incorrectly at some point in it's life.
I inspected and replaced those on a C&C
I purchased 12 years ago, the existing bolts were sawed about halfway through when I pulled the mast.
joint, which is true for any external, bolted on keel
with w deep draft. Decks are cored so check to see how well the deck
fittings and through deck
holes have been sealed.
Some had a little blistering but were better than average for fiberglass
vessels of that vintage, C&C built solid boats at that time and most I have seen had decent quality layups.
If it was a colored gel coat it has probably been painted since the colored gel coats in those years tended to fade within a short time.
Otherwise all the same things you'd look at in any boat of that vintage, how well was it maintained, how hard was it used, how modern the equipment
, how often updated?