300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
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Timing Chain: Diagrams
Engine Basic Timing Marks
Setting TDC
Insure that the No. 1 cylinder is in the TDC position.
Check that the camshaft mark is aligned with mark on camshaft bearing cap. If marks are aligned the engine is in time.
Early Model Camshaft
Marking Cam Gear
Late Model Camshaft
If the marks do not align, it is necessary to adjust camshaft timing. Refer to Camshaft Adjustments for procedure. See: Camshaft, Lifters and Push
Rods/Camshaft/Adjustments
