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Home >> Mercedes Benz >> 2001 >> S55 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Timing - 215 & 220 Chassis >> Testing & Repair >> Inspecting timing of engine - AR05.10-P-6858 >> Check the engine valve timing - AR05.10-P-6858V

Check the engine valve timing - AR05.10-P-6858V

ENGINE 112 

ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254 

ENGINE 113.982 in MODEL 463.243/246 

ENGINE 113 (except 113.995) in MODEL 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230 

Fig 1: Identifying Engine Valve Timing, Pin On Crankcase - Shown On Engine 112
G04605730

Shown on engine 112 

Inspect basic position of balancing shaft only engine 112 

Fig 2: Locating Notch In Balancing Weight, Pin On Crankcase
G04605731
REMOVINGINSTALLING Remove/install    
1 Remove cylinder head covers Air filter located at vehicle side. AR01.20-P-5014B
Air filter located on engine side. AR01.20-P-5014BV
2.1 Unbolt combination valve (on right) IMPORTANT Only for engines with air pump.  
IMPORTANTInstallation:  Replace Gasket of combination valve.  
TORQUE SPECIFICATION *BA09.20-P-1001-01D 
INSPECT Checking     
3 Inspect timing Engine 112.910/911/912/920/921/922/923/940/941/942/942/944/945/946/947/949, Engine 113.940/941/942/943944/960//961/962/963/965/967/968/980/981/982/984/987/990/991/992, Engine 113.960 with cylinder shutoff code 479 see: ↓  
Inlet *BE05.20-P-1001-02F 
Outlet *BE05.20-P-1002-02F 
IMPORTANT Camshaft code number and assignment Engine 112, 113 AH05.20-N-0100-01A 
4 Position engine to 40° after ignition TDC of cylinder 1 IMPORTANT Rotate engine at crankshaft in direction of rotation until 40° marking on belt pulley/vibration damper is aligned with marking on timing case cover. Slots at camshafts must be pointing in direction of inner V.
NOTES The engine must not be turned back; otherwise the timing chain can get jammed.
 
5 Check basic position of camshafts IMPORTANT Place locating plate for right camshaft (2) flush onto the right cylinder head and insert into the groove in the camshaft (6). Proceed the same way with the left-hand camshaft in the left-hand cylinder head.  
SPECIAL TOOL Fig 3
SPECIAL TOOL Fig 4
If both locating plates cannot be inserted into the grooves: ↓  
Set the basic position of camshafts. AR05.20-P-6020AU 
6.1 Inspect basic position of the balancing shaft Only for Engine 112, see figure.
IMPORTANT The markings of the pin at front crankcase (A) and the notch in the correctional weight (B) on the front end of the correctional weight point to each other. The two scribe marks can be seen through the left timing case duct at a depth of about 22 cm from the cylinder head cover joint surface.
 
7 Install in the reverse order    
TEST VALUES FOR TIMING

Number Designation Engines 112.910/911 left-hand Engines 112.910/911 right-hand Engines 112.910/913/920/921/922/923 on the left
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 24.9 26.5 26.9
closes after BDC °CA 20.2 21.8 23.2
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 28.1 26.5 29.1
opens after BDC °CA - - -
closes before TDC °CA 13.1 11.5 14.1
TEST VALUES FOR TIMING

Number Designation Engines 112.912/913/920/921/922/923 right Engines 112.940/941/942/943/944/945/946/947/948/949/951/976 left
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 28.5 24.9
closes after BDC °CA 24.8 25.9
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 27.5 31.5
opens after BDC °CA - -
closes before TDC °CA 12.5 12.1
TEST VALUES FOR TIMING

Number Designation Engines 112.940/941/942/943/944/945/946/947/948/949/951/976 right Engines 113.940/941/942/943 left
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 26.5 31.9
closes after BDC °CA 27.5 28.2
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 29.9 24.1
opens after BDC °CA - -
closes before TDC °CA 10.5 9.1
TEST VALUES FOR TIMING

Number Designation Engines 113.940/941/942/943 on the right Engine 113.940/94
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 33.5 26
closes after BDC °CA 29.8 34
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 22.5 34
opens after BDC °CA - -
closes before TDC °CA 7.5 14
TEST VALUES FOR TIMING

Number Designation Engines 113.960/961/962/963/964/965/967/968/971 left Engines 113.960/961/962/963/964/965/967/968/971 right Engines 113.980/981/982/984 right and left
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 30.9 32.5 25
closes after BDC °CA 25.7 27.3 39
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 23.2 21.6 35
opens after BDC °CA - - -
closes before TDC °CA 9.1 7.5 15
TEST VALUES FOR TIMING

Number Designation Engines 113.987/988 989/990//991992/993/995 left and right
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 25.7
closes after BDC °CA 33.7
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 31.5
opens after BDC °CA -
closes before TDC °CA 11.3
TEST VALUES FOR TIMING

Number Designation Engine 113.960 with code 479 right Engine 113.960 with code 479 left
BE05.20-P-1001-02F Timing of inlet valve with 2 mm play and used timing chain opens after TDC °CA 36.9 28.5
closes after BDC °CA 28.5 14.8
BE05.20-P-1002-02F Timing of exhaust valve with 2 mm play and used timing chain opens before BDC °CA 24.3 27.5
opens after BDC °CA - -
closes before TDC °CA 14.1 12.5
TORQUE SPECIFICATION INTAKE MANIFOLD

Number Designation Engines 112, 113
BA09.20-P-1001-01D Bolt, intake manifold to cylinder head M8 Nm 20
Fig 3: Identifying Locating Plate (112 589 00 32 00)
G04605732
Fig 4: Identifying Locating Plate (112 589 01 32 00)
G04605733