S 500 Sedan (140.051) V8-5.0L (119.970) (1994)
Harmonic Balancer - Crankshaft Pulley: Service and Repair
Models Produced From 8/1994
Removing/Installing Belt Pulley of Vibration Damper and Hub
Preparation
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Viscous fan coupling removed, refer to Cooling System.
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Drive belt tensioning device removed. See: Drive Belts, Mounts, Brackets and Accessories/Drive Belt Tensioner/Service and Repair
Procedure
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Disconnect ground cable at battery, connect.
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Remove generator (1), install.
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Attach shop made guard plate at radiator, take off.
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Remove viscous fan coupling bearing bracket (2), install, refer to Cooling System.
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Unbolt bracket of A/C compressor carrier (3), bolt on.
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Turn piston of cylinder No. 1 to TDC so that Woodruff key (15) in crankshaft is facing vertically up.
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Install retaining lock for crankshaft/ring gear, remove. See: Service and Repair/Procedures
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Unscrew central bolt (19) with tapered washer (20), screw on.
Tighten to: 200 Nm + 90°.
NOTE: Conical washer (20) replaces dished washers; the different parts of the 2 versions must not be interchanged.
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Pull off vibration damper (18), remove upward, fit on.
NOTE: Align Woodruff key (15), fit on vibration damper (18) and turn in order to determine whether the slot is aligned with the Woodruff key
(15) in the crankshaft.
Tightening torques In Nm
M18 x 1.5 x " bolt of vibration damper Initial torque Nm 200
(with conical washer) Tightening angle A 900