S 55 AMG (220.174) V8-5.5L SC (113.991) (2004)
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Carefully pry out the crankshaft bearing cap (10) and fitted bearing (5).
12
Take crankshaft (1) out of crankcase
13
Take crankshaft bearing shells (2) and thrust washers (6) out of the crankcase
Install
14
Insert crankshaft (1)
NOTE: Oil crankshaft journals and crankshaft bearing shells!
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If crankshaft is replaced
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If crankshaft is repaired
15
Tighten crankshaft bearing caps
CAUTION: The crankshaft bearing cap bolts M8X75 and M10X90 must always be replaced otherwise there is a risk of fracture.
NOTE: Tighten all bolts (M10, M8) synchronously as specified in the tightening diagram for this step!
16
Check axial play of crankshaft
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If crankshaft is replaced
17
Inspect connecting rod bolts (12)
18
Install conrod bearings and fit on conrod bearing caps (16)
CAUTION:
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The connecting rod bearing shell (13) with the oil drilling (arrow) must be installed in the connecting rod (11) otherwise the
connecting rod bearings will not be lubricated.
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The anti-twist locks (14) of the connecting rod bearing shells (13) must be located in the grooves (15) of the connecting rod (11) and
the connecting rod bearing cap (16).
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Installation: Conrod (11) and conrod bearing cap (16) are cracked They must not be installed on the wrong side otherwise the
accurate fit is no longer assured!
19
Tighten connecting rod bolts (12)
20
Rotate crankshaft
NOTE: To inspect ease of operation.
21
Fit on end cover
NOTE: Replace radial sealing ring! The sealing lip of the radial seal and its mating surface must not be oiled or greased. Pay attention to dowel
sleeves when pressing on end cover!
22
Fit on flywheel/driven plate
23
Fit on timing case cover
NOTE: Replace O-rings and radial seal. The sealing lip of the radial seal and Its mating surface must not be oiled or greased. Pay attention to
dowel sleeves when pressing on end cover!
24
Fit on belt pulley/vibration damper
25
Attach oil pump
NOTE: Installation:
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Ensure oil return flow check valve is correctly located.
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Clean strainer of oil pump.
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Fill oil pump with engine oil before installing so that oil is transported when it is first started.
26
Fit on top part of oil pan
27
Inspecting timing of engine
28
Fit on automatic transmission
29
Install Engine.