Installing the front camshaft seals

Fig 1: Identifying Front Camshaft Seals And Special Tool 9995718

Courtesy of VOLVO CARS OF NORTH AMERICA.

Use drift 9995718 .
Lubricate the surface of the seal that the camshaft rotates against.
Use the variable valve timing unit / timing belt pulley mounting screws. Tighten the screws until the drift bottoms out
Remove the drift
Install the screw holding the inner timing cover to the cylinder head.