Remove
Remove cylinder head cover – see operation "Cylinder Head Cover, Remove and Install".
Remove lower engine compartment cover.
Adjust
Remove plug (1) from cylinder block.
Turn crankshaft in engine rotational direction at the torsion vibration damper hub until Test Mandrel KM-813 (2) engages the cylinder block and flywheel or drive disc hole (3) cylinder block.
Caution
Ensure that the test mandrel does not engage the indentations for the driver attachment screws in vehicles with automatic transmission.
Inspect
Check cam position of 1st cylinder. The cam tips (1) must point upwards. The piston of the 1st cylinder is now in the "TDC position".
Attach Fixing Tool KM-811 (2) to the camshaft behind the first bearing support.
For engines operated for up to approx. 20, 000 km/12 500 miles, the Fixing Tool must lie flat on the sealing surface for the cylinder head cover.
For engines operated for over 20, 000 km/12 500 miles, the elongation of the timing chain should also be considered. To compensate, place a support (I) of 4.61 mm on the intake side.
Install
If Fixing Tool KM-811 does not lie flat on the sealing surface for the cylinder head cover or support, the timing must be adjusted – see operation "Timing, Adjust".
Remove Test Mandrel KM-813 and flywheel or drive disc from cylinder block hole.
Install plug.
Install lower engine compartment cover - tightening torque 5 Nm / 3.7 lbf. ft.
Remove Fixing Tool KM-811.
Install cylinder head cover – see operation "Cylinder Head Cover, Remove and Install".