A FRIEND OF MINE HAS A '72 GLASTRON WITH A VOLVO 6 CYLINDER I/O. HE ASKED ME TO TAKE A LOOK AT THE MOTOR TO SEE IF THE HEAD GASKET WAS BAD, BUT I NOTICED THAT WHEN HE REMOVED THE COVER, THE FREEZE PLUGS WERE LAYING IN THE BOTTOM OF THE BOAT. HE SAID THAT THE BOAT HASN'T BEEN IN THE WATER FOR 2...