Drilling extra holes in your mast is not a great idea for several reasons. One you weaken the integrity of the mast tube and may set up a line of "perforations" along the mast tube that mast stresses will use to "connect the dots" and split the mast. Any holes drilled in a mast should be filled with a bolt or rivet to minimize water
leakage into the mast tube. Using silicon sealant
is a short term way to seal a hole, but long term the sealant
breaks down and now you have additional entry holes for rain and sea water
. The water collects in the base of the mast and starts corroding the mast tube or the mast shoe and then enters the bilge
system. It is amazing how much water can enter a mast just from the cap piece and normal access holes for electrical
- - Wait until the next haulout and then rewire the mast correctly either using a plastic or metal conduit or the wire ties technique.
- - Or if you can remove existing fixtures or bolts you may be able to "fish" the wires and install the wire ties or a piece of capture monel wire without adding additional holes. Then put the fixture or bolt back in position.