Adjustment mechanism to adjust gap between grilling surfaces

A grill includes a lower portion and an upper platen pivotably attached to the lower portion each having a grilling surface. An adjustment mechanism adjusts a dimension of the gap between the grilling surfaces between a large dimension and a small dimension. The adjustment mechanism includes a rotatable bar having a handle and a cam surface. The upper grilling surface is suspended by two cables. The cam surface is received between arms rotates the bar to move the position of the cam surface relative to the arms to adjust the gap between the grilling surfaces. This lengthens or shortens the cables to move the suspended upper grilling surface to adjust the gap between the grilling surfaces.