bonding

Hi Folks, I've been impressed with my 356 and the engineering involved. But, I do have one problem. The thru-hull for the engine water inlet is slowly corroding. The other thru-hulls are bonded to a submerged zinc mounted in the hull. They show no signs of corrosion. But, the engine water...

I inadvertently cut the mast ground wire during unstepping process (see photo). Can I splice this wire or should it be replaced? Thanks in advance for any advice.

I am rebuilding the propulsion system on my '77 Pearson 30 sailboat - basically replacing everything from the transmission flange back (flexible coupling, split coupling, S/S prop shaft, Martek bronze prop, and new Cutlass bearing). I have all the parts and pieces, and I'm starting to put...