Remove/install hydraulic valve clearance compensation elements - AR05.00-P-2011L

ENGINE 137.970 in MODELS 215.378, 220.178 /878 

Fig 1: Identifying Hydraulic Valve Clearance Compensation Elements Remove/Install Components

MODIFICATION NOTES

17.4.02	Value modified from 14 Nm to 1.5 Nm 1st stage and 14 Nm 2nd stage	Value in BA05.20-P-1003-01E for engine 137 modified	*BA05.20-P-1003-01E
12.6.02	Figure modified from 80 Nm to 120 Nm	Figure in BA05.10-P-1001-01H for engine 137 modified	*BA05.10-P-1001-01H

	Remove, Install
1	Remove intake manifold	Removal:  Remove intake manifold complete with intake connection, intake air pipes and fuel rail.	AR09.20-P-1310L
			*BA09.20-P-1001-01G
2	Remove cylinder head covers (1)	Installation:  Before installing the cylinder head covers, crank engine at the crankshaft in direction of rotation and check the timing of the engine. See ↓	AR01.20-P-5014L
		Check timing of engine	AR05.10-P-6858L
			*BA01.20-P-1001-01E
3	Remove oil pump (2) for cylinder shutoff (CSO)		AR01.30-P-5704L
			*BA01.30-P-1001-01G
			*BA01.30-P-1003-01G
4	Remove front cover on right		AR01.30-P-5700L
			*BA01.30-P-1001-01G
			*BA01.30-P-1002-01G
5	Position crankshaft to 30° after ignition TDC of cylinder 1	Crank engine at crankshaft in direction of rotation of engine until 30° marking on belt pulley/vibration damper is aligned with marking on timing case cover. The marking (A) of the camshaft bearing cap (7) must be aligned with the marking (B) of the camshaft (5). Engine must not be cranked backwards.
6	Mark camshaft adjuster and timing chain to each other with colored dots.
7	Install camshaft adjuster (4)	Installation:  Fit timing chain onto camshaft adjuster. Take off retaining clamp.	AR05.20-P-7201L
		Retaining clamp	Fig 2
		Holding device	Fig 3
			*BA05.20-P-1001-01E
			*BA05.20-P-1002-01E
8	Remove chain tensioner		AR05.10-P-7800L
			*BA05.10-P-1001-01H
9	Remove cylinder shutoff valves (3)	Installation:  Center cylinder shutoff valves on camshaft bearing caps so as to ensure a proper seal to the cylinder head cover.	AR01.30-P-5705L
			*BA05.20-P-1005-01E
10	Remove camshafts (5)	Installation:  Move camshafts into basic position, see: ↓	AR05.20-P-6992L
		Adjust basic position of camshafts	AR05.20-P-6020L
11	Remove camshaft bearing bridges (6)	Installation:  The camshaft bearing bridge must not be disassembled. When carrying out repairs, the camshaft or rocker arm bearing bridge on both cylinder heads must be replaced complete. If the camshaft or rocker arm bearing bridge of the left cylinder head is replaced, the camshaft must likewise be replaced.	AR05.20-P-7103L
			*BA05.20-P-1004-01E
12	Use a 2 mm drift to press compensating element (10) of the relevant cylinder out of the roller rocker arms (8)	Installation:  Slots of disk (9) at top in rocker arm must face down toward compensation element! Do not use a magnet! The friction surface of the compensating element would otherwise be magnetized. This may cause minute iron swarf to gather which can result in damage to the compensating element and cam. Installation:  Compensation elements which have not been replaced, must be reinstalled at the same point.
13	Install in the reverse order

CRANKCASE VENTILATION, CYLINDER HEAD COVER

Number	Designation		Engine 137, 275, 285
BA01.20-P-1001-01E	Screw of cylinder head cover	NM	8

CYLINDER HEAD

Number	Designation			Engine 137
BA01.30-P-1001-01G	Front cover on right to cylinder head	M6	NM	8
BA01.30-P-1002-01G	Bolt of guide pulley to front cover on right	M8	NM	30
BA01.30-P-1003-01G	Cylinder shutoff secondary oil pump to left cylinder head	M6	NM	8

TIMING CHAIN, CHAIN TENSIONER

Number	Designation		Engine 137
BA05.10-P-1001-01H	Chain tensioner in cylinder head	NM	120

CAMSHAFT

Number	Designation				Engine 137
BA05.20-P-1001-01E	Bolt of left camshaft adjuster	M14 x 80	1st stage	NM	120
			2nd stage	∠ °	90
BA05.20-P-1002-01E	Bolt of right camshaft adjuster	M14 x 48	1st stage	NM	120
			2nd stage	∠ °	90
BA05.20-P-1003-01E	Bolt of camshaft bearing cap to cylinder head		1st stage	NM	1,5
			2nd stage	NM	14
BA05.20-P-1004-01E	Bolt, camshaft bearing bridge to cylinder head	M7x85		NM	14
BA05.20-P-1005-01E	Bolt, camshaft bearing bridge to cylinder head	M7x110		NM	14

INTAKE MANIFOLD TORQUE SPECIFICATION

Number	Designation				Engine 137
BA09.20-P-1001-01G	Bolt, intake manifold to cylinder head	1st stage	M6	NM	8
			M8	NM	20
		2nd stage	M6	NM	8
		Step 3	M6	∠ °	90

Fig 2: Identifying Retaining Clamp (137 589 00 40 00)

Fig 3: Identifying Retainer (137 589 01 40 00)