5pc Ford Mazda Zetec Duratec Engine Camshaft Alignment Locking Timing Tool Set Works with Duratec and Zetec of Mazda's Ford Volvo's Tensioner locking pin to retain the tensioner in the non-tension position Camshaft alignment locking plate allows the camshafts to be locked in the TDC position when servicing timing components. Three crankshaft locking pins allow crankshaft to be locked in the TDC position.