Removing and installing camshafts

AR05.20-D-6992C

9.9.11

ENGINE 111.979 in MODEL 901.0, 902.0, 903.0, 904.0

ENGINE 111.984 in MODEL 901.6, 902.6, 903.6, 904.6

D05.20-1014-06

1 Exhaust camshaft

2 Inlet camshaft

3 Timing chain

4 Torx bolts

5 Exhaust camshaft sprocket

6 Inlet camshaft sprocket

7 Torx bolts

8 Camshaft bearing cap

9 Valve tappet

10  Open-end wrench

11  Retaining pins

12 Slide rail

 The illustration shows engine 111.979 without camshaft adjuster. The description which follows also applies to engine 111.984 with camshaft adjuster.

	Removing, installing
1	Disconnet negative terminal of battery
2	Remove cylinder head cover		AR01.20-D-5014C
3	Remove spark plugs		AP15.10-D-1580A
4	Remove slide rail (12) at cylinder head		AR05.10-D-8432C
5	Lock camshafts in place		AR05.20-D-6992-07C
			*111589031500
6	Mark camshaft and camshaft sprockets to each other with paint	 Assembly aid
7	Remove chain tensioner		AR05.10-D-7800C
		 Installation:	AR05.10-D-7800-02C
8	Take off camshaft sprockets (5 and 6)	Engine 111.979	AR05.20-D-6992-08C
			*BA05.20-N-1001-01A
			*000589011000
9	Detach camshaft sprocket from the exhaust camshaft	Engine 111.984	AR05.20-D-7201-03A
		 Installation:	AR05.20-D-7201-04A
			*BA05.20-N-1001-01A
			*000589011000
10	Detach camshaft adjuster from the inlet camshaft	Engine 111.984	AR05.20-D-7201-01A
		 Installation:	AR05.20-D-7201-02A
			*BA05.20-N-1001-01A
			*BA05.20-N-1003-01A
			*BA05.20-N-1004-01A
			*104589010100
			*111589014000
			*000589011000
11	Detach camshafts (1 and 2) at the cylinder head		AR05.20-D-6992-09C
		Camshaft code numbers	*BE05.20-N-1001-01A
			*BA05.20-N-1002-01A
			*104589010100
			*000589011000
12	Install in the reverse order

Inspection data of camshaft code numbers

Number	Designation		Engine 111.979/ 984


BE05.20-N-1001-01A	Camshaft code numbers	inlet	16
		Exhaust	17

 Camshaft

Number	Designation			Engine 111.979	Engine 111.984


BA05.20-N-1001-01A	Camshaft sprocket/flange shaft to camshaft	1st stage	Nm	20	20
		2nd stage	°	60	60
BA05.20-N-1002-01A	Camshaft bearing cap to cylinder head		Nm	21	21
BA05.20-N-1003-01A	Armature to control plunger of camshaft adjuster	1st stage	Nm	-	5
		2nd stage	°	-	90
BA05.20-N-1004-01A	Nut of cover of camshaft adjuster		Nm	-	65

104 589 01 01 00

Thrust nut

Double open-end wrench

Torx bit set

Retaining pins

000 589 01 10 00

111 589 01 40 00

111 589 03 15 00

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