Install intake camshaft
- Clean all bearing positions and coat with motor oil.
- Clean all bearing positions of intake camshaft bearing caps (E1) (E2) (E3)
, (E4) (E5) (E6)
and (E)
coat with motor oil.
- Clean all bearing positions of the intake camshaft and coat with motor oil.
- Check all the roller cam followers (1)
of the intake side for correct fit.
- Insert intake camshaft (2)
in the bearing brackets in such a way that the mark (1)
points towards the top.
- Check fitting sleeves (1)
of the thrust bearing for damage, replace if necessary.NOTE: RISK OF DAMAGE
Engine damage caused by incorrectly installed bearing shells and bearing brackets .
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur .- Always install all bearing shells and bearing brackets in the same position from which they were removed.
- Coat all the intake camshaft bearing caps (E1) till (E6) and lay the bearing caps for the thrust bearing (E) with motor oil.
- Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 8.8 .
- Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 10.9 .
NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure. - Press down the intake camshaft bearing cap and stepwise apply the screws in the order of (1) to (14) until hand-tight.
- Join all bolts in sequence (1) to (14) in half turns .
- Observe the joining torque .
- Tighten
all screws in a sequence from (1)
to (14)
.
Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONSIntake camshaft to cylinder head M6 Tensile strength of screw 8.8
Joining torque9.6 Nm tightening torque 9.6 Nm M6 Tensile strength of screw 10.9
Joining torque11.8 Nm tightening torque 11.8 Nm
Follow-up work
- Refer to INSTALLING THE INTAKE ADJUSTER .
- Refer to BLOCKING THE CAMSHAFTS .
- Refer to PRELOADING TIMING CHAIN .
- Refer to TIGHTENING THE VANOS CENTRAL VALVE .
- Refer to CRANK ENGINE TWICE (AUTOMATIC TRANSMISSION) .
- Refer to DISASSEMBLING ALL SPECIAL TOOLS .
- Refer to CHECKING INSTALLATION POSITION OF ROLLER CAM FOLLOWERS .
- Refer to CHECKING THE INTERMEDIATE LEVER CLASSIFICATION .
- Refer to INSTALLING ALL INTERMEDIATE LEVERS .
- Refer to INSTALLING ALL GATES .
- Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT .
- Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT AT CYLINDER 3 AND 4 .
- Refer to INSTALLING TORSION SPRINGS .
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to INSTALLING BOTH ACTUATORS .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 4 TO 6 .
- Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 1 TO 3 .
- Refer to PREPARING FOR THE INSTALLATION OF THE HIGH PRESSURE PUMP .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- Refer to INSTALLING FUEL DELIVERY LINE .
- Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE RAIL AND THE HIGH-PRESSURE PUMP .
- Refer to INSTALLING ALL SPARK PLUGS .
- Refer to INSTALLING THE IGNITION COILS .
- Refer to CONNECTING THE COOLANT HOSE TO THE RADIATOR OF THE LOW-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING THE INTAKE PLENUM .
- Refer to INSTALLING THE TANK VENT VALVE .
- Refer to INSTALLING FRONT ENGINE ENCAPSULATION .
- Refer to FASTENING CHARGE AIR LINE TO THE THROTTLE BODY .
- Refer to INSTALLING THE HOLDER FOR THE DIGITAL MOTOR ELECTRONICS-CONTROL UNIT .
- Refer to INSTALLING THE DME CONTROL UNIT .
- Refer to CONNECTING THE CONNECTOR WITH THE DME CONTROL UNIT AND THE POWER DISTRIBUTION BOX (PDM) .
- Refer to INSTALLING CLEAN AIR PIPE .
- Refer to INSTALLING INTAKE SILENCER HOUSING .
- Refer to INSTALLING FAN COWL .
- Refer to INSTALLING ACOUSTIC COVER AT REAR .
- Refer to INSTALLING TENSION STRUT ON SUSPENSION STRUT TOWER .
- Refer to INSTALLING SOUND INSULATION AT THE CENTER OF THE BULKHEAD UPPER PART .
- Refer to ATTACHING COWL PANEL COVER .
- Refer to INSTALLING BOTH WIPER ARMS .
- Refer to CHECKING THE ANGLE OF ATTACK OF THE WIPER ARMS ON THE LEFT AND RIGHT .
- Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE LEFT .
- Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE RIGHT .
- Refer to INSTALLING STARTER MOTOR .
- Refer to FILLING THE LOW-TEMPERATURE COOLANT CIRCUIT WITH THE VACUUM FILLER DEVICE .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to CONNECTING THE DIAGNOSTIC SYSTEM FOR POSSIBLE INTEGRATION LEVEL ENCODING AND PROGRAMMING .
- Refer to BLEEDING THE LOW-TEMPERATURE COOLING CIRCUIT .
- Refer to INSTALLING THE SUPPORT FOR THE UNDERBODY PROTECTION .
- Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
- Refer to INSTALLING THE FRONT UNDERBODY PROTECTION
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
- Refer to CHECKING ENGINE OIL LEVEL .
- Clean all bearing positions and coat with motor oil.
- Clean all bearing positions of intake camshaft bearing caps (E1) (E2) (E3)
, (E4) (E5) (E6)
and (E)
coat with motor oil.
- Clean all bearing positions of the intake camshaft and coat with motor oil.
- Check all the roller cam followers (1)
of the intake side for correct fit.
- Insert intake camshaft (2)
in the bearing brackets in such a way that the mark (1)
points towards the top.
- Check fitting sleeves (1)
of the thrust bearing for damage, replace if necessary.NOTE: RISK OF DAMAGE
Engine damage caused by incorrectly installed bearing shells and bearing brackets .
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.- Always install all bearing shells and bearing brackets in the same position from which they were removed.
- Coat all the intake camshaft bearing caps (E1) till (E6) and lay the bearing caps for the thrust bearing (E) with motor oil.
- Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 8.8 .
- Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 10.9 .
NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure . - Press down the intake camshaft bearing cap and stepwise apply the screws in the order of (1) to (14) until hand-tight.
- Join all bolts in sequence (1) to (14) in half turns .
- Observe the joining torque .
- Tighten
all screws in a sequence from (1)
to (14)
.TIGHTENING TORQUE SPECIFICATIONS
Intake camshaft to cylinder head M6 Tensile strength of screw 8.8 Joining torque 9.6 Nm tightening torque 9.6 Nm M6 Tensile strength of screw 10.9
Joining torque11.8 Nm tightening torque 11.8 Nm
Follow-up work
- Refer to INSTALLING THE INTAKE ADJUSTER .
- Refer to BLOCKING THE CAMSHAFTS .
- Refer to PRELOADING TIMING CHAIN .
- Refer to TIGHTENING THE VANOS CENTRAL VALVE .
- Refer to CRANK THE ENGINE TWICE (MANUAL TRANSMISSION) .
- Refer to DISASSEMBLING ALL SPECIAL TOOLS .
- Refer to CHECKING INSTALLATION POSITION OF ROLLER CAM FOLLOWERS .
- Refer to CHECKING THE INTERMEDIATE LEVER CLASSIFICATION .
- Refer to INSTALLING ALL INTERMEDIATE LEVERS .
- Refer to INSTALLING ALL GATES .
- Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT .
- Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT AT CYLINDER 3 AND 4 .
- Refer to INSTALLING TORSION SPRINGS .
- Refer to INSTALLING CYLINDER HEAD COVER .
- Refer to INSTALLING BOTH ACTUATORS .
- Refer to PREPARING THE INJECTORS FOR INSTALLATION .
- Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 1 TO 3 .
- Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 4 TO 6 .
- Refer to PREPARING FOR THE INSTALLATION OF THE HIGH PRESSURE PUMP .
- Refer to INSTALLING HIGH PRESSURE PUMP .
- Refer to INSTALLING FUEL DELIVERY LINE .
- Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE RAIL AND THE HIGH-PRESSURE PUMP .
- Refer to INSTALLING ALL SPARK PLUGS .
- Refer to INSTALLING THE IGNITION COILS .
- Refer to CONNECTING THE COOLANT HOSE TO THE RADIATOR OF THE LOW-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING THE INTAKE PLENUM .
- Refer to INSTALLING FRONT ENGINE ENCAPSULATION .
- Refer to FASTENING CHARGE AIR LINE TO THE THROTTLE BODY .
- Refer to INSTALLING THE TANK VENT VALVE .
- Refer to INSTALLING THE HOLDER FOR THE DIGITAL MOTOR ELECTRONICS-CONTROL UNIT .
- Refer to INSTALLING THE DME CONTROL UNIT .
- Refer to CONNECTING THE CONNECTOR WITH THE DME CONTROL UNIT AND THE POWER DISTRIBUTION BOX (PDM) .
- Refer to INSTALLING FAN COWL .
- Refer to INSTALLING CLEAN AIR PIPE .
- Refer to INSTALLING INTAKE SILENCER HOUSING .
- Refer to FILLING THE LOW-TEMPERATURE COOLANT CIRCUIT WITH THE VACUUM FILLER DEVICE .
- Refer to INSTALLING ACOUSTIC COVER AT REAR .
- Refer to INSTALLING TENSION STRUT ON SUSPENSION STRUT TOWER .
- Refer to ATTACHING COWL PANEL COVER .
- Refer to INSTALLING BOTH WIPER ARMS .
- Refer to CHECKING THE ANGLE OF ATTACK OF THE WIPER ARMS ON THE LEFT AND RIGHT .
- Refer to INSTALLING SOUND INSULATION AT THE CENTER OF THE BULKHEAD UPPER PART .
- Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE LEFT .
- Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE RIGHT .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to CONNECTING THE DIAGNOSTIC SYSTEM FOR POSSIBLE INTEGRATION LEVEL ENCODING AND PROGRAMMING .
- Refer to BLEEDING THE LOW-TEMPERATURE COOLING CIRCUIT .
- Refer to INSTALLING THE SUPPORT FOR THE UNDERBODY PROTECTION .
- Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
- Refer to INSTALLING THE FRONT UNDERBODY PROTECTION
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
- Refer to CHECKING ENGINE OIL LEVEL .