Note: Replace screws that are tightened to the specified angle. If the o-ring of the screw plug is damaged, replace the o-ring.
Check position "TDC" Camshaft and crankshaft: The camshaft clamp -T10494- is mounted on the camshaft housing.
Carefully! Risk of damage to camshafts. The camshaft clamp -T10494- must not be used as a stop.
The locking bolt -T10340- is screwed into the cylinder block until it stops and tightened to a torque of 30 Nm. Crankshaft turned forward until it touches locking screw -T1034 0- ="TDC" position". Screw in new screws -1- and -2- for securing the camshaft pulleys and hand-tighten. The camshaft pulleys should still turn on the camshafts, but should not oscillate.
The protrusion of the tensioning roller -arrow- must engage in the molded recess in the cylinder head.
Note: When fitting/reserving the toothed belt, observe the correct sequence.
Raise the toothed belt up and install it on the guide pulley -1-, the tensioning pulley -2- and then on the camshaft pulleys -3- and -4-.
Turn eccentric -2- of tensioning pulley with spanner -T10499- -in direction of arrow- until arrow -3- is approx. 10 mm to the right beyond the recess. Turn the eccentric back so that the arrow is exactly opposite the notch.
Carefully! Use torque wrench -VAS 6583-1 for tightening When setting the tightening torque on the torque wrench -IMS 6583-, the length specified on the socket -T10500- must be entered!
While holding the eccentric in this position, tighten bolt -1- to 25 Nm using socket -T10500- with torque wrench -VAS.6583-.
Note: Later on, after turning the crankshaft or starting the engine, the arrow -3- may slightly deviate from the position opposite the notch. This is normal and will not adversely affect the timing belt tension.
Tighten bolts -1,2- to an initial torque of 50 Nm using stop -T10172- with adapters -T10172/1-. Unscrew locking bolt -T10340-. Unscrew bolt -arrow- and remove camshaft clamp -T10494-.