My 82 O'Day 25 with 15hp omc sail drive has wood blocks that are fiberglassed to hull with 3/8" square head bolts acting as studs to mount isolation ring to. The 9 bolts/studs seam solid enough but they have cracks around their square heads that are encapsulated in fiberglass that attaches bolts to blocks. Im worried that vibration from omc will work on worsening this situation ultimately creating a leaking hull. I know half of you will tell me to pull omc and glass over hull and hang a small 4 stroke on her. I had this same year omc power head on a flats boat me and my pops fished with in the flats of Laguna Madre. So Im familiar with motor and it always seamed to be reliable and handled salt water fine. I am thinking clean up, dewax with acetone, sand to roughen up ,dewax again, then use epoxy and two layers of 3" selvage fiberglass tape to over wrap old blocks and bolt heads. Any of my new friends here with ideas on repairing my old gals sail drive it would be appreciated! I am going try to post pictures, so we will see how that goes!
