1_03_02 1_03a_02 · In the adjuster, two chamber types with

911 Engine 1 1_03_02 1_03a_02 In the adjuster, two chamber types with If during the filling of a chamber the oil differing directions of action are employed. supply and the oil return flow at the 4-way Filling one chamber type causes rotation of proportioning valve is interrupted (centre the rotor against the stator. Filling the other position of valve), the adjuster remains in chamber type, the rotor and with it the the currently assumed position. The camshaft can be returned to its initial chambers lose oil through leakage and the position. The oil of the non-pressurised adjuster leaves its position. The 4-way chamber returns via the 4-way proportioning valve is activated accordingly proportioning valve back into the via the control unit and the adjuster returns crankcase. to the desired position. 2002 Service Information 1 - 9