Leyland Workshop Manual image, white arrows showing the positions of the keyways and black arrows showing the position of the dimples.
To install the distributor drive dog correctly, using the instructions contained within the manuals which state that No.1 piston must be at TDC on its compression stroke, the crank must be turned one full turn i.e. 360 degrees. This puts the camshaft keyway adjacent to the crank gear, and the cam gear dimple at top-right.