300CE (124.051) L6-3.0L (104.980) (1990)
Timing Chain Guide: Service and Repair
Guide Rail in Crankcase
Removal and Installation (Engine 104.94/99 Only):
NOTE: Numbers in parentheses ( ) indicate a component or tool in the associated illustration.
1. Remove timing case cover.
Engine 104.94/99
2. Mark crankshaft sprocket (11) relative to timing chain (6) with a colored marking (arrows).
3. Remove tensioning rail (2).
4. Lift off timing chain (6) at camshaft sprockets (3) and (5).
NOTE: Pay attention to colored marking (arrows).
5. Pull off guide rail (18) at bearing pins (17) and (21).
NOTE:
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Pay attention to colored marking (arrows) on crankshaft sprocket (11).
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Check basic position of camshafts if necessary.
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The plastic guide (sliding surface) is clipped into the guide rail (18) and can be replaced separately.
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Projection of guide rail:
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Pin (17) at top with female thread 21 mm.
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Pin (21) at bottom 34 mm.