40.5 aft leaks
I had a small seep coming thru the screw holes in the starboard genoa track near the aft end. Rebedded 'em with boat-life caulk,and no more leak. Have heard of the cockpit pedestal leaking around the wires where they pass thru the deck if there is no bimini or other canvas above. Fix: More silicone around the wire/deck interface. If your 40.5 is a '93, the tubing for the transom vents does not angle upward into the boat as the later boats' does. The rain or spray enters thru the vent and runs downhill thru the vent hose 'till it finds a way to drip in the cabin. Fix: either cover the tops of the vents outside so water can't enter, or put a 45 degree pvc elbow (or similar) inboard of the vent to stop inflow. Once you find 'em and fix 'em she'll be dry for good(well almost). Leaks are inevitable and a real pain for us sailors, but once you've found and fixed 'em you'll be justifiably proud of yourself. Don't give up, in fact try to enjoy the hunt. Good Luck and I hope I've helped you solve your leak! Ron