Blocking engine in TDC firing position
- Guide out and remove sealing cap (1).NOTE: RISK OF DAMAGE
Damage to the engine .
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged .- Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear.
- With the special tool 0 493 380 (11 6 480) , turn the engine in arrow direction to the TDC firing position of cylinder 1 .
- Vehicles with automatic transmission:
Dimension (X) = 66 mm
special tool 2 288 380 must be inserted up to dimension (X) into the dowel hole.
- Vehicles with automatic transmission:
The special tool 2 288 380 is incorrectly positioned.
TDC firing position of cylinder 1 not achieved.
- Vehicles with automatic transmission:
The special tool 2 288 380 is correctly positioned.
Engine in TDC firing position of cylinder 1.
- Keep the set of special tools 2 456 372 at hand:
| Number | Description |
|---|---|
| 1 | Basic carrier |
| 2 | Setting gauge for adjusting the intake camshaft |
| 3 | Setting gauge for adjusting the exhaust camshaft |
| 4 | Basic carrier screws on cylinder head |
| 5 | Screw gauge on basic carrier |
- Have the test gauges from the set of special tools 2 358 122 ready:
| Number | Description |
|---|---|
| 1 | Test gauges for fixing in place the intake camshaft |
| 2 | Test gauges for fixing in place the exhaust camshaft |
- Rotate the intake camshaft (E) and the exhaust camshaft (A) so that the marks (1) are legible from above.
- Make sure the cam (1) on the exhaust camshaft on cylinder 1 is pointing slightly to the inside right at an angle.
- Make sure the cam (1) on the intake camshaft on cylinder 1
is pointing leftwards at an angle.
- Make sure the flattened areas (1) on the intake camshaft and the exhaust camshaft are pointing upwards at an angle.
- Position the basic carrier (1) from the set of special tools 2 456 372 on the cylinder head.
- Tighten the screws (1) from special tool set 2 456 372 on the basic carrier (2).
TIGHTENING TORQUE SPECIFICATIONS
| Basic carrier to cylinder head | ||
| M6 | Tightening torque | 8 Nm |
- Position the test gauge (1) from the set of special tools 2 358 122 between the intake camshaft and the basic carrier from the set of special tools 2 456 372 .
- Position the test gauge (2) from the set of special tools 2 358 122 between the exhaust camshaft and the basic carrier from the set of special tools 2 456 372 .
- Tighten the screws (arrows).
TIGHTENING TORQUE SPECIFICATIONS
| Test gauge to basic carrier | ||
| M6 | Tightening torque | 8 Nm |