Check basic position of camshafts

AR05.20-P-6010OLD

Check basic position of camshafts

16.9.15

Engine

651 in model 205, 253

1

Filler neck

2

Web

A

Marking on intake camshaft

B

Marking on camshaft bearing cap

C

Marking in bore for camshaft Hall sensor

D

Marking on sensor rotor of exhaust camshaft

 

Remove/install

1

Remove engine cover

2

Unscrew oil filler cap

3

Remove camshaft Hall sensor

AR15.10-P-2000OLD

4

Rotate engine at crankshaft using counterholder in direction of engine rotation and place piston for cylinder 1 at top dead center


The engine must not be turned back.
The timing chain can skip otherwise and cause engine damage.

 The 00° marking on the belt pulley/vibration damper (arrow) must align with the stay (2) on major assembly carrier.

 Counterholder

*651589074000



Check

5

Check basic position of intake camshaft

 The marking on the intake camshaft (A) must coincide with the marking on the camshaft bearing cap (B). If the marking on the intake camshaft (A is not visible, turn the crankshaft another revolution, position to the 0° CKA marking and check again.

If the markings (A, B) do not coincide, adjust camshafts



Set basic position of camshafts

AR05.20-P-6020OLD

6

Check basic position of exhaust camshaft

 The marking on sensor rotor of the exhaust camshaft (D) must coincide with the marking in the bore for the camshaft Hall sensor (C).

If the markings (C, D) are not aligned



Set basic position of camshafts

AR05.20-P-6020OLD

7

Install in the reverse order