Adjusting basic position of camshafts

AR05.20-S-6020A

Adjusting basic position of camshafts

9.2.95



Removing

1

Check the basic position of the camshafts

AR05.20-S-6010A

2

Remove the slide rail in the cylinder head

AR05.10-S-8432A

3

Position the piston of the first cylinder at 30° after the ignition PMS

Rotate the engine by the crankshaft

AR01.00-S-0120A

 At 30 ° after the ignition PMS in the first cylinder the camshafts can be rotated without the pistons touching the bottom of the piston

4

Remove the chain tensioner (1)

AR05.10-S-7800A

5

Remove the exhaust camshaft wheel (4)



*000589011000

6

Remove the timing chain (2) of the intake camshaft wheel (3).

7

Rotate the camshafts to the basic position and lock them in this position.


 Lock the camshafts with the help of the retaining pin (5) which is inserted through the bore holes in the bearing caps of the camshafts (5) and the bore holes in the flanges of the camshafts (arrows)

*104589010100



*111589031500

8

Position the first cylinder again at 20 ° after the ignition PMS

 During this operation, pull the timing chain strongly upwards



Installing

9

Fit the timing chain (2) on the intake camshaft wheel (3).

10

Install the exhaust camshaft wheel (4) with the timing chain (2) fitted.

 Replace the screws of the camshaft wheel, use them only once



*BA05.20-N-1001-01A



*000589011000

11

Install the chain tensioner (1).

 Installation: Dismantle the chain tensioner and assemble it again as described.

AR05.10-S-7800A

12

Remove the retaining pin (6).



*111589031500

13

Check the basic position of the camshaft.

AR05.20-S-6010A

 To do this, rotate the engine by the crankshaft twice in the direction of rotation of the engine

AR01.00-S-0120A

14

Install the slide rail in the cylinder head

AR05.10-S-8432A

15

Complete the engine.

Number

Designation

Engine 111.948/
978

BA05.20-N-1001-01A

Camshaft sprocket/flange shaft to camshaft

1st stage

Nm

20

2nd stage

°

60