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Valve
1. Replace the valve if its stem is bent, worn or damaged. Also replace it if the stem end (the surface contacting
the hydraulic-lash adjuster) ishollowed out.
2. Check the valve face contact area, and recondition or replace as necessary.
3. Replace the valve if the width of the margin (thickness of the valve head) is less than the minimum specified.
Valve margin
Standard value
Intake : 1.0mm(0.0394 in.)
Exhaust : 1.3mm(0.0512 in.)
Service limit
Intake : 0.5mm (0.0197in.)
Exhaust : 0.8mm (0.0315in.)
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Page 3 of 8
24.04.2008
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Troubleshooting
