Check basic position of camshafts

AR05.20-S-6010EF

Check basic position of camshafts

19.05.2020

Model

447 with engine 622

Modification notes

19.05.2020

Method revised.

The whole document

1

Screw plug

4

Screw

7

Holes

2

Crankcase

5

Cylinder head cover

8

Grooves

3

Adjustment tool

Shown on camshafts in preadjustment

5

Cylinder head cover

11

Exhaust camshaft gear

12

Hole

13

Hole

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove starter.

AR15.30-S-7100EF

2

Remove the timing case cover.

AR01.40-S-8000EF

Preparatory tasks

3

Attach belt pulley.

AR03.30-S-1700EF

 For this purpose, attach belt pulley to crankshaft using old bolt.

 Do not replace bolt.
Do not tighten bolt.

4

Adjust camshafts to preadjustment.

 For this purpose, turn crankshaft in direction of engine rotation.
Align bore (12) at exhaust camshaft gear (11) with bore (13) at cylinder head cover (5).

5

Remove screw plug (1) from crankcase (2).

6

Screw drift into bore at crankcase (2).

 Drift

*626589001500

7

Turn engine at crankshaft in direction of engine rotation until crankshaft is in contact with drift.

 Drift

*626589001500



Check

8

Attach adjusting tool (3) with screw (4) to the cylinder head cover (5).

 During attachment, wedge at  adjusting tool (3) must engage in grooves (8) of exhaust camshaft and pins of  adjusting tool (3) in bores (7) of intake camshaft gear. Camshafts are in basic position if  adjusting tool (3) can be attached without high force expenditure.

 Adjustment tool

*626589044000

If adjusting tool (3) cannot be attached



Turn crankshaft until adjusting tool (3) can be effortlessly attached.

 For this purpose, slightly turn crankshaft in or opposite the direction of engine rotation.

 Adjustment tool

*626589044000

If required to turn crankshaft,



remove drift again.

 Drift

*626589001500

If the adjusting tool (3) still cannot be attached easily after turning the crankshaft,



Set basic position of camshafts.

AR05.20-S-6020EF

Concluding tasks

9

Remove drift from bore at crankcase (2).

 Drift

*626589001500

10

Screw screw plug (1) into crankcase (2).

 Screw plug for bore, special tool TDC to crankcase

*BA01.40-N-1006-01E

11

Remove belt pulley.

AR03.30-S-1700EF



Install

12

Install timing case cover.

AR01.40-S-8000EF

13

Install starter.

AR15.30-S-7100EF

 Crankcase, timing case cover, bottom half of crankcase

Number

Designation

Engine 622 in model 447

BA01.40-N-1006-01E

Screw plug for bore, special tool TDC to crankcase

Nm

25