Camshaft Impulse Wheel Position Tools

The camshaft impulse wheels require a special tool set to position them correctly prior to torquing the retaining nuts.

The impulse wheels are identical for each cylinder bank. The alignment hole in each wheel must align with the tool's alignment pin. Therefore the tools are different and must be used specifically for their bank.

The tool rests on the upper edge of the cylinder head and is held in place by the timing case bolts.

Fig 1: Camshaft Impulse Wheel Position Tools (1 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Impulse Wheel

Courtesy of BMW OF NORTH AMERICA, INC.