I can tell you every thing about this smodel including a keel crack that developed at the rear section of the keel and it was right under the motor on my 32 CC
I was getting enough water that it smelled like low tide in my boat so I made an access port in the bottom of the sink cabinet and found a slight stream of water coming from under the engine bed......then had the boat hauled and found this smile on the keel where it meets the hull.......I ducked taped a shop vac hose to the crack and sucked some fresh clean water out, then acetone, then West System epoxy that I poured in the bilge and finally a good coating of cloth and epoxy
Note: after about 5 years I noticed the crack started showing again so I ground it out again and used more cloth and a new product called West Systems G Flex epoxy and so far so good