Technical Article # Original Issued Date Latest Update


P-15 Motor Mount Installation Guide

Tools Required  
  • electric drill
  • 1/8" drill bit
  • phillips screwdriver
  • caulking gun with one tube of either 5200 marine adhesive, silicone or acrylic latex caulking with silicone.

Begin by locating and marking the motor mount board location on the port side of the transom. See illustration above.

Determine the engine clamp locations on the inside of the transom and mark these to be certain the fastenings don't fall in the same place.

Locate the fastenings on the transom about 3/4" in from the sides of the board. The top two screws should be about 3/4" down from the top of the board and the bottom two screws should be about 4 1/2" from the top of the transom.

Using a 1/8" bit, drill the four screw holes through one layer of fiberglass only, i.e.; the hull but not the inside cockpit liner. There is a gap between the two fiberglass

layers that must be filled to prevent crushing when the engine mount is clamped on. Cut a small hole in the end of the caulking tub and shoot enough caulking into the hole to fill the space in the immediate area of the board.

Hold the board in place and drill pilot holes from the inside of the boat into the board. Be careful not to drill all the way through.

Cover the back of the board with 5200 marine adhesive or caulking, place the screws through the trim washers and tighten snugly.

Allow time for the caulking to cure and you're ready to put a pad over the transom, clamp on the motor and power away.


[ Home | Boats | Boat Parts | Company | Contact Us ]
[ FAQ | Information | Sailing Info Links ]
Copyright © - Precision Boat Works, Inc.