300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984)
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1
Check valve guides and replace, if required. See: Valve Guide
2
Machine valve seat (30°) (refer to operating instructions of tool manufacturer).
Attention! Release pilot (013) only after runout of valve seat has been checked.
3
Measure valve seat width b and correct below to 60°, if required.
If required, also correct clearance (Beta) to 60°.
