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Home >> Jaguar >> 2014 >> XK Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine - V8 S/C 5.0L Petrol) >> Engine (V8 S/C 5.0L Petrol) >> Description And Operation >> Engine >> Variable Camshaft Timing Operation

Variable Camshaft Timing Operation

WARNING: This page is about a different car, the 2011 Jaguar XKR175, 2011 Jaguar XKR, and 2010 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

When the engine is running, the compression and expansion of the valve springs causes momentary increases and decreases in the torque acting on the camshafts. These momentary changes of torque are sensed in the VCT units and used to change the camshaft timing.