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.
Crankshaft pulley holding tool must be removed for the engine overhaul
application / removal of front timing chain cover.