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2.3 VALVE TRAIN
2.3.1 Removal, Maintenance and Installation
1
）
Check the intake/exhaust valve for air tightness. Grind the valve if necessary
。
2
）
Remove the split cones, valve spring seat. Check them for wear.
Repair or replace them according to the actual situation.
3
）
Remove the valve spring, and check it for wear or deformation. Repair or
replace it if necessary.
4
）
Remove the valve stem seal, and check it for wear or damage. Replace it if
necessary.
