Log in or Sign up. Boat Design Net. Project: To repair a 4" crack on bottom of aluminum boat Boat: Late 70's model 12' Ouachita Problem: I acquired this boat from my grandfather and it came with a 4" long crack directly in the middle of the bottom of the boat. The crack lies directly under one of the two seats that has styrofoam packed in it for boat boyancy. The repair materials I have are a propane torch and an aluminum brazing rod.
Mark Channels Read Calendar. Ouachita jon boat max hp. This topic is closed.