Check your floor thickness. 73-4 were 1 inch. 75 up were 3/4. Area on all were 1 inch above engine as I recall. All were marine grade. For areas that aren't resting on a floor supports. Make a patch for the area to be repaired. Draw it's shape on the floor. Then draw another line about 1-1/2 inch inboard of the patch line. This will allow you to remove damaged area without damaging the insulation below the floor. Set you router to the floor thickness. Cut to the inside of the inter line. Set your router to 1/2 the thickness of the floor. Use the router to remove the area between the two lines on the floor. Next repeat this to the bottom of the patch floor panel. Use a good water proof wood glue. Install some flat head screws to hold the patch while glue sets. I left the screws in place. Haven't found the photos yet. This proved to be extremely strong. Bob Dunahugh 78 Royale Cell 319-521-4891 Iowa
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