Crankshaft Locking Pin | Camshaft Clamp Assembly (Twin Cam) | Camshaft Timing Tool Petrol & Diesel | Primary Timing Chain Pre-Load Tool | VANOS Unit Engagement Wrench | Bushes | Tensioner Locking Pins. This comprehensive set of tools enables the correct timing positions to be achieved on both camshaft and crankshaft whilst replacing the timing chain on both petrol and diesel engines. The kit includes a special wrench for controlled turning of the exhaust camshaft sprocket when removing and installing the VANOS unit. Also included is a Primary Timing Chain Pre-Load Tool for tensioning the timing chain on M50 M52 M42 and M60 engines.