1B3-134 OM600 ENGINE MECHANICAL
Machining Procedure
Valve machining is required :
- When the valve is leaking.
- When replacing the valve.
- When replacing the valve guide.
- When replacing the valve seat or valve seat ring.
1. Machine the valve seat (a=45°).
2. Measure valve seat width ‘b’.
Valve seat
width ‘b’
1.2 - 1.7 mm
1.5 - 2.0 mm
Intake
Exhaust
3. If the specification is exceeded, the valve seat width has to
be corrected at the lower free angle of ‘β’=65°.
4. Measure radial runout.
Runout Max. 0.03mm
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