500SEC (140.070) V8-5.0L (119.970) (1993)
Front Crankshaft Seal: Service and Repair
Replacement:
Preparation
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Remove belt pulley, harmonic balancer and hub. See: Cylinder Block Assembly/Harmonic Balancer - Crankshaft Pulley/Service and Repair
Overview
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Remove, install belt pulley (12), vibration damper (13) and hub (14).
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Remove radial seal (16), refer to step 2 below.
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Clean and deburr mounting bore.
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Oil sealing lip of radial sea] (16), refer to step 4 below.
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Using insertion sleeve, special tool 119 589 01 14 00, install radial seal (16), refer to step 6 below.
Pay attention to installation position in the case of hubs (14) with running (wear groove) marks, refer to step 6 below.
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check for leaks with engine running.
Procedure
NOTE: An oil leak can be determined after spraying the dried and cleaned surrounding area with Mercedes-Benz white contrast spray 000 989 03 69.
1. Check hub of belt pulley for running (wear groove) marks.
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If running marks are present, install radial seal offset 3 mm to the inside (see step 6 below).
2. Lever out radial seal with a screwdriver.
CAUTION: Do not damage crankshaft and mounting bore for the radial seal, use clean cloths as a base.
3. Deburr edge of mounting hole for the radial seal.
4. Oil sealing lip of the radial seal.
CAUTION: