78 CC - How is the pylon attached?

The pylon is bolted to the floor between the engine bay and battery box. Simply remove the four machine bolts...they have a plate, washer and nut on the bottom side. Then lift the pylon straight up and out. The bottom of the pylon has a peg/pin that sits in a cup socket glassed into the bottom of the hull. Unfortunately, the pin and socket are ferrous metal pieces that tend to rust. Enough rust and the fit is sloppy leading to excessive movement of the pylon. Also, look for rotting of the floor where the pylon is bolted.

Sure. Remove the pylon. Clean the peg/pin to remove ALL rust. Epoxy coat the peg/pin or as a minimum spray it with cold galvanizing compound. Once the treatment dries, apply a liberal coat of wax evenly.

Clean all rust out of the socket in the hull. Do not paint or wax the socket. Protect the hull around the socket with wax paper and seal the paper to the outside of the socket well. Pour epoxy into the socket...just enough so that the pylon peg will not displace so much that it runs all over the bilge. Now, replace the pylon and bolt it down properly. When the epoxy dries in the socket, the wax on the peg will prevent the epoxy from sticking to the peg, but the socket will now be the proper size for the smaller peg.

Just a word of caution: If the peg has large pits in teh surface or is irregular in shape, then you should make sure it is smooth before doing the above procedure or you will not be able to easily remove the pylon agian.