I have a newly acquired Singer 111WSV65.  I have got it to sew using the info from the forum's, lots of great information here.  I cleaned up the tensioner and it seems to be working.  The tension release when you lift the foot is not.  There is a pin that goes through the machine that is activated by the foot lift arm.  The pin is free, moves back and forth, but does not put pressure on the tensioner.  Is that mechanical adjustment or is there a missing spring? Thanks, Bonnie