I have a 1985 Four Winns. since I bought this boat 4 years ago lots of water has leaked into the bilge. The bellows is not the problem. this has been on going since day one. the drive has been on and off each year by 3 different marinas for bellows and this leak. Also last year had a brand new SEI complete drive installed. about 3 weeks ago I cracked my bell housing loading the boat. The lower part of the drive bumped the concrete just a little bit causing it to crack. So this time I had everything replaced. This will be the second set of all new bellows in 4 years, also replaced was water pipe shift cable bell housing, gimbal ring, gimbal bearing everything except for the gimbal housing was replaced. It still takes on the same amount of water as it did before, we are talking 2-3 gallons over 12-15hours boat stays docked. The drain tube I would believe is the original brass, and for the plug I just use a bronze rubber screw type. Could my drain tube be causing this much water to enter the bilge? I've inspected the transom inside and out for any noticeable cracks/etc and all looks good. So for the last few years I've been running this expensive auto bilge setup for peace of mind. Thoughts