Introduction: The timing adjustment and the overhaul application involving front end, the gear, the timing chain, etc. Require removal of front timing chain cover, and remove that, the crankshaft pulley must be removed. On most variants of the pulley bolt have a very high torque specification, and removal or installation of this pulley requires the special remover and the holding tool in AT1544. Application: Crankshaft pulley holding tool must be removed for the engine overhaul application / removal of front timing chain cover.