S05.20-3001-09
1 Cylinder head cover
2 Intake camshaft
3 Exhaust camshaft
4 Bearing cap of camshaft
5 Lock shank
| Removing and installing | ||
1 | Remove cylinder head cover (1) | ||
| Testing | ||
2 | Position the piston of the first cylinder at 20° after the ignition PMS | Turn the engine with the crankshaft | |
The 20 ° marking (arrow) on the Poly-V-pulley/vibration damper on the cover of the timing case. The cams of the intake and exhaust camshafts (2) and (3) point crosswise upwards in the first cylinder. | |||
3 | Check the basic position of the camshafts | Insert the lockout shank (5) in the holes of the bearing covers of the camshafts (4) and in the flanges of the camshafts (arrows) A deviation of approx. 1/3 is admitted in the diameter of the hole which is due to the elongation of the chain because of use. If appropriate before testing | |
Re-adjust the basic position of the camshafts | |||
4 | The installation is carried out in reverse order |
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Check shanks