11 31 574 Adjusting camshaft timing on right side (N74)
Risk of damage to timing drive.
If special tool 11 9 890 can not be fitted, it is necessary when releasing the central bolt to grip the hexagon head of the respective camshaft.
(cylinder bank 1 to 6)
Necessary preliminary tasks:
Get special tool 11 9 890 ready for securing camshafts.
Special tool 11 9 892 Press-down bar.
Special tool 11 9 893 Gap gauge for inlet and exhaust camshafts.
Special tool 11 9 895 spacer.
Release central bolts (1 and 2) of inlet and exhaust camshaft adjusters.
Installation:
Replace central bolts after releasing.
Installation:
Coat contact face of new central bolt (1) with copper paste.
Screw special tool 11 9 895 into cylinder head.
Position special tool 11 9 893 at the angle between the inlet and exhaust cam shafts.
Position special tool 11 9 892 on special tool 11 9 893.
Both special tools 11 9 891 are secured with special tool 11 9 893.
Connect inlet camshaft adjuster (2) central screw (1).
Tightening torque: see 1AZ in 11 36 VARIABLE CAMSHAFT CONTROL
Connect exhaust camshaft adjuster (2) central screw (1).
Tightening torque: see 1AZ in 11 36 VARIABLE CAMSHAFT CONTROL
Secure central bolt (1) of exhaust camshaft adjuster (2) with special tool 00 9 120 .
Tightening torque: see 1AZ in 11 36 VARIABLE CAMSHAFT CONTROL
Secure central bolt (1) of inlet camshaft adjuster (2) with special tool 00 9 120 .
Tightening torque: see 1AZ in 11 36 VARIABLE CAMSHAFT CONTROL
Remove special tool 11 9 890 .
Remove special tools 11 9 190 and 11 8 570 .
Crank engine at central bolt twice in direction of engine rotation until engine returns to cylinder no. 1 TDC firing position .
Secure vibration damper with special tool 11 9 190 in the firing TDC position of cylinder 1 .
Fit special tool 11 9 893 on intake camshaft and check timing adjustment.
Fit special tool 11 9 893 on exhaust camshaft and check timing adjustment.
Remove all special tools.
Assemble engine.