11 31 573 Adjusting Camshaft Timing on Left Side
11 31 573 - Adjusting camshaft timing on left side (N62 / N62TU)
Special tools required:
- 11 9 190 11 9 190 Plug Mandrel
- 11 9 460 11 9 460 Gauge
- 11 9 461 11 9 460 Gauge
- 11 9 462 11 9 460 Gauge
- 11 9 463 11 9 460 Gauge
(cylinder bank 5 to 8)
Necessary preliminary tasks:
- Check camshaft timing on left side Checking Camshaft Timing on Left Side
- Remove left timing case cover Removing and Installing Top Left Timing Case Cover (N62/N62TU)
Note:
When slackening screws, grip camshafts at hexagon head.
Slacken screws of exhaust and inlet adjustment unit.
Get special tool kit 11 9 460 11 9 460 Gauge ready for securing camshafts.
Note:
Special tool 11 9 461 11 9 460 Gauge for securing inlet camshaft.
Special tool 11 9 462 11 9 460 Gauge for securing exhaust camshaft.
Special tool 11 9 463 11 9 460 Gauge (holder with screw).
Place special tool 11 9 461 11 9 460 Gauge on inlet camshaft and align inlet camshaft so that special tool 11 9 461 11 9 460 Gauge rests without a gap on cylinder head.
Fit special tool 11 9 463 11 9 460 Gauge, secure screw (1) in thread for oil line and tighten down by hand.
Note:
When tightening down screw (1), grip camshaft at hexagon head.
Tighten down screw (1) of inlet adjustment unit.
Tightening torque 11 36 16AZ 11 36 Variable Camshaft Control VANOS.
Release screw (1), remove special tools 11 9 463 11 9 460 Gauge and 11 9 461 11 9 460 Gauge from inlet camshaft.
Place special tool 11 9 462 11 9 460 Gauge on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 11 9 460 Gauge rests without a gap on cylinder head.
Fit special tool 11 9 463 11 9 460 Gauge, secure screw (1) in thread for oil line and tighten down by hand.
Note:
When tightening down screw (2), grip camshaft at hexagon head.
Tighten down screw (2) of exhaust adjustment unit.
Tightening torque 11 36 16AZ 11 36 Variable Camshaft Control VANOS.
Release screw (1), remove special tools 11 9 463 11 9 460 Gauge and 11 9 462 11 9 460 Gauge from exhaust camshaft.
Remove special tool 11 9 190 11 9 190 Plug Mandrel.
Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.
Secure vibration damper with special tool 11 9 190 11 9 190 Plug Mandrel in firing TDC position of 1st cylinder.
Place special tool 11 9 461 11 9 460 Gauge on inlet camshaft and check timing.
Note:
The timing is correctly adjusted when special tool 11 9 461 11 9 460 Gauge rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.
Remove special tool 11 9 461 11 9 460 Gauge from inlet camshaft.
Place special tool 11 9 462 11 9 460 Gauge on exhaust camshaft and check timing.
Note:
The timing is correctly adjusted when special tool 11 9 462 11 9 460 Gauge rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.
Remove all special tools.
Assemble engine.