BMW 7 Series: Connecting Rod With Bearing
REPLACING ALL CONNECTING ROD BEARINGS (N63)
Notes
IMPORTANT: Note grinding stages on crankshaft.
Necessary preliminary work
- Removing all PISTONS
Install new connecting rod bearing shells.
Install one blue bearing shell (1) and one red bearing shell (2) in each connecting rod.
Install PISTON.
Fig. 148: Identifying Blue Bearing Shell And Red Bearing Shell
Installation note: The bearing shells on the connecting rod are coded.
Connecting rod bearing cap (1): the red bearing shell is fitted and the fastening notches are on the left and right sides of the bearing shell (see arrows).
Connecting rod (2): the blue bearing shell is fitted and the fastening notches are one side of the bearing shell (see arrows).
Fig. 149: Locating Red Bearing Shell Fastening Notches And Blue Bearing Shell
Fastening Notches
Check connecting-rod bearing play
Piston in BDC position.
Fit special tool 00 2 590 (Plastigage type PG 1) to oil-free crankshaft.
Fit bearing caps so that matching numbers match up.
Fig. 150: Locating Special Tool 00 2 590
IMPORTANT: Do not distort connecting rods or crankshaft.
Use connecting rod bolts to check connecting-rod bearing play.
Connecting rod bolts with special tool 00 9 120.
Tightening torque 11 24 1AZ.
Fig. 151: Checking Connecting-Rod Bearing Play
Remove bearing cap and read off bearing play at width of flattened plastic thread with assistance of measuring scale.
CONNECTING-ROD BEARING PLAY.
- Remove plastic thread.
- Lubricate crankshaft and bearing shells.
- Install new connecting rod bolts.
Fig. 152: Checking Connecting-Rod Bearing Play
Secure connecting rod bolts with special tool 00 9 120.
Tightening torque 11 24 1AZ.
Fig. 153: Securing Connecting Rod Bolts With Special Tool 00 9 120
Assemble engine.
READ NEXT:
Removing And Installing/Replacing All Pistons (N63) Up To 3/2011
Notes
WARNING: Protective goggles must be worn when working on the gudgeon
pin circlip.
IMPORTANT: If pistons and connecting rods are reused, they must be
reinstalled in the same
places.
Piston and
Removing And Installing/Replacing All Pistons (N63) From 3/2011
Notes
WARNING: Protective goggles must be worn when working on the gudgeon
pin
circlip.
IMPORTANT: If pistons and connecting rods are reused, they must be
reinstalled in the same
places.
Piston and
SEE MORE:
Checking Camshaft Timing On Left Side (N63)
Notes
IMPORTANT: The timing can only be checked with special tool 11 9 900.
The timing may be misinterpreted if it is checked without special tool 11 9 900.
Cylinders 5-8:
Necessary preliminary work
Remove left CYLINDER HEAD COVER
Remove FAN COWL with electric fan
Remove BELT PULLEY for air con
Replacing Audio Unit
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
PROTECTION).
IMPORTANT: Use of supplied gloves is mandatory
Carry out installation in a dust-free workshop area only.
To avoid damage, do not touch or dirty the display field.
Necessary preliminary work:
Remove
