300CD (123.153) L5-3.0L DSL Turbo (617.952) (1982)
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Timing is measured at 2 mm valve lift. For this purpose, the valve clearance must be neutralized.
Model 116.120
Checking
1
Unscrew pencil element glow plugs.
2
Disconnect regulating linkage to remove cylinder head cover. Pull out locking eye of longitudinal regulating shaft (arrow).
Model 123
