Aquired an 83 Hydra Sport 2100CC. <br /><br />Transom sounds solid and flexes very little when pushing on the 200 Evin. There are a couple of old screw holes there than have gelcoat on them. Plus I need to remove a few items and replace with newer transducer etc... <br /><br />Whats the best thing to fill the holes with? Go back to gelcoat or use some of the filler epoxy type stuff that West advertises and inject each hole?<br /><br />Boat has not been in the water in about 5 years if that makes any difference.<br /><br />Also rebuilding the engine -- at this point with the power head and lower unit off, should I remove the rest and check the motor bolt holes and try to add some sealant there also? I would not mind taking the top transom trim loose just to see but advice is welcome.<br /><br />Jeff