Originally posted by Kremithefrog:
Ford sells the tool to lock the crank. Though it's not needed for a simple timing belt change, or timing adjustment. It is useful when doing a rebuild.
It helps when you are changing cam gears. 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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