p0006014
The crankshaft is lubricated via separate channels in
the cylinder block feeding each main bearing (
1
). The
main shaft journals have drilled lubrication channels
(
2
), and a drilled channel (
3
) leads to the nearest
crankshaft journal from each main bearing journal
except the center one.
The vibration damper is of hydraulic type and bolted
directly onto the front crankshaft flange. The damper
is also used as as a multi-grooved belt pulley to drive
the alternator. In the damper housing (
4
) there is an
oscillating mass in the form of a cast iron ring (
5
) that
is able to rotate freely on the bushings (
6
). The space
between the damper housing and the oscillating mass
is filled with silicone oil of high viscosity.
When the crankshaft rotates, torsional stresses arise
in the crankshaft from piston impulses. The viscous
silicone oil evens out the movement between the pul-
sating crankshaft rotation and the smooth rotation of
the oscillating mass, thus reducing the stresses.
The flywheel (
7
) and the intermediately located gear-
wheel (
8
) are fastened to the rear crankshaft flange
with 14 M16 bolts (
9
). The flywheel is positioned on
the crankshaft with the same locating pin (
10
) as the
gearwheel. There are grooves milled into the circum-
ference (
12
) for the engine control system inductive
sensor. The starter ring (
11
) is sweated onto the fly-
wheel and is replaceable.
20-0 Engine Information, General
7748841 06-2010
77
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