Component Description; Engine Block - BMW M57 Service Training

DI Diesel Engines M57/M67 - Common Rail

Component description

Engine block

The engine block represents the central component of the
power plant. It houses the crankshaft, connecting rods and
pistons.
The following features apply both to the M57 and M67:
• Crankshaft position/rpm sensor mounted on crankcase for
radial sensing at inner incremental wheel (last crankshaft web)
• Oil supply gallery for oil spray nozzles with central pressure
control valve
M57-specific features
• Material: Grey cast iron
• Support spar concept as on the M47
(i.e. interconnected horizontal and vertical box profiles)
• Cast flange for mounting common rail high pressure pump
• Reinforcement shell with integrated oil deflector function,
split design in area of cylinder 1 to 2 (oil pump)
• Oil spray nozzles (common part M47)
Fig. 11: Engine block - section M57
© BMW AG, Service Training
Course contents/Background material
Forward direction
KT-3690
Sec. 2 P.2