Crankcase - Mercedes-Benz OM 651 Service Manual

Crankcase

General
When engine 651 was developed, the design of the
crankcase was based on an overall concept with opti-
mized spatial features. Accordingly, the gear drive
with the oil pump drive and the Lanchester balance
shafts are positioned on the output side. The cast iron
crankcase is manufactured by sand casting.
Crankcase
1 Crankcase
12
Introduction of New Generation of 4-Cylinder Inline Engines, OM 651
q
2 Oil spray nozzle shutoff valve
– This printout will not be recorded by the update service. Status: 09 / 2008 –
The new design concept provides the following advan-
tages:
• 4 cm shorter crankcase compared to predecessor
version
• Improved pedestrian protection through
positioning of gear drive and camshaft drive on
output side
• Universal timing case cover for adaptation to
various transmission models