Replace all connecting rod bearing shells
Preliminary work
- Remove the FRONT AXLE completely with the engine and transmission.
- Remove the ENGINE from the front axle.
- Install the ENGINE on the assembly jig.
- Release the OIL DRAIN PLUG
- Tighten the OIL DRAIN PLUG
- Remove charge AIR LINE .
- Remove rear ACOUSTIC COVER .
- Remove all IGNITION COILS .
- Remove all SPARK PLUGS .
- Remove the HIGH PRESSURE LINE between the high pressure pump and the rail.
- Remove HIGH PRESSURE PUMP .
- Remove the cylinders 1 to 3 RAIL with injectors.
- Remove the cylinders 4 to 6 RAIL with injectors.
- Remove both ACTUATORS .
- Remove the cylinder head COVER .
- Remove tank VENT VALVE .
- Remove the INTAKE PLENUM .
- Remove the lambda OXYGEN SENSOR .
- Remove the oxygen sensor MONITOR .
- Remove CATALYTIC CONVERTER .
- Remove the exhaust turbocharger OIL RETURN LINE .
- Remove the COOLANT LINE between the coolant pump and cylinder head.
- Block ENGINE in TDC firing position.
- Remove CHAIN TENSIONER .
- Release the intake adjuster VANOS CENTRAL VALVE .
- Release exhaust camshaft adjuster VANOS CENTRAL VALVE .
- Remove the intake adjuster VANOS CENTRAL VALVE .
- Remove the exhaust camshaft adjuster VANOS CENTRAL VALVE .
- Remove INTAKE ADJUSTER .
- Remove exhaust camshaft ADJUSTER .
- Remove the TEST GAUGES for securing the camshafts.
- Remove the CYLINDER HEAD .
- Remove the cylinder HEAD GASKET .
- Remove front axle DIFFERENTIAL .
- Remove OIL PAN .
- Remove BEARING BRACKET
- Remove oil VACUUM PUMP .
- Remove the OIL DEFLECTOR .
- Remove all PISTONS with connecting rod.
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.
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.
NOTE:
TECHNICAL INFORMATION
Piston, piston pin, connecting rod and connecting rod bearing shells are matched to each other and balanced.
Always install the pistons, piston pins, connecting rods and connecting rod bearing shells in the cylinder from which they were removed.
Piston, piston pin, connecting rod and connecting rod bearing shells are matched to each other and balanced.
Always install the pistons, piston pins, connecting rods and connecting rod bearing shells in the cylinder from which they were removed.
- Feed the connecting rod bearing shell (2) out of the connecting rod (1) and remove it.
- Feed the connecting rod bearing shell (2) out of the connecting rod bearing cap (1) and remove it.
- Note the different equipment specifications of the connecting rod bearing shells (1) and (2).
- To avoid incorrect assembly: Observe marks (arrows).
Connecting rod bearing shell (1) and the connecting rod bearing shell (2) each have a fuse to prevent incorrect assembly.
- To avoid incorrect assembly: Observe marks (arrows).
Connecting rod bearing cap (2) and the connecting rod (1) each have a fuse to prevent incorrect assembly.
- Replace the connecting rod bearing shell (2) and insert it in the connecting rod (1).
Parts: Connecting rod bearing shell
- Oil the connecting rod bearing shell (2).
- Replace the connecting rod bearing shell (2) and insert in the connecting rod bearing cap (1).
Parts: Connecting rod bearing shell
- Oil the connecting rod bearing shell (2).
- Vacuum the crack surfaces (1) with a conventional vacuum cleaner (2).
The crack surfaces (1) must not be blown off with compressed air.
Follow-up work
- Measure PISTON .
- Measure a CYLINDER .
- Install all PISTONS with connecting rod.
- Install the OIL DEFLECTOR .
- Install the oil VACUUM PUMP .
- Refit engine OIL PAN .
- Install front axle DIFFERENTIAL .
- Install BEARING BRACKET
- Seal the OIL DUCT .
- Clean sealing SURFACES .
- Install the cylinder HEAD GASKET .
- Block the CRANKSHAFT in the TDC firing position of cylinder 1.
- Install the CYLINDER HEAD .
- Adjust the CAMSHAFTS with the special tool.
- Install the INTAKE ADJUSTER .
- Install the intake adjuster VANOS CENTRAL VALVE .
- Install exhaust camshaft ADJUSTER .
- Install the exhaust camshaft adjuster VANOS CENTRAL VALVE .
- Pre-tension the TIMING CHAIN with the special tool.
- Tighten the exhaust camshaft adjuster VANOS CENTRAL VALVE .
- Tighten the intake adjuster VANOS CENTRAL VALVE .
- Disassemble all SPECIAL TOOLS .
- Install CHAIN TENSIONER .
- Check the camshaft TIMINGS .
- Install the COOLANT LINE between the cylinder head and the coolant pump.
- Install the exhaust turbocharger OIL RETURN LINE .
- Install cylinder HEAD COVER .
- Install both ACTUATORS .
- PREPARE the injectors for installation.
- Install the cylinders 4 to 6 high-pressure RAIL with injectors.
- Install cylinders 1 to 3 RAIL with injectors.
- Install the HIGH-PRESSURE LINE between the high-pressure pump and the high-pressure rail.
- Install HIGH PRESSURE PUMP .
- Install all SPARK PLUGS .
- Install all IGNITION COILS .
- Install CATALYTIC CONVERTER .
- Install the oxygen SENSOR MONITOR .
- Install lambda OXYGEN SENSOR .
- Install the INTAKE PLENUM .
- Install the tank VENT VALVE .
- Install charge AIR LINE .
- Install rear ACOUSTIC COVER .
- Fill ENGINE OIL
- Top up/check front axle TRANSMISSION OIL .
- Remove the ENGINE from the assembly jig.
- Mount the ENGINE on the front axle.
- Install the complete FRONT AXLE including engine and transmission.