LRT, have a look at the hole the rod goes through on the bottom of the pedal, you might find the hole has slotted and this is where you are loosing your adjustment, or on the other end of the rod. When you have the rod out of the foot pedal pull and push on the rod to see what movement there is, remembering that if you push to hard you will actually move the arm that that engages the clutch from forward to reverse and vice versa