Inspecting the valve stem guide clearance
- After measuring the valve guide diameter and the valve stem diameter, check the clearance between
guide and stem.
INLET
Specification Desc./Quantity
Standard clearance: 0.013 - 0.04 mm
Admissible limit: 0.08 mm
OUTLET
Specification Desc./Quantity
Standard clearance: 0.025 ÷ 0.052 mm
Admissible limit: 0.09 mm
STANDARD VALVE LENGTH
Specification
Desc./Quantity
Inlet: 95.0 ± 0.3 mm
Outlet: 94.2 ± 0.3 mm
- Check that there are no signs of wear on the surface of contact with the articulated register terminal.
Nexus 500 euro 3 Engine
ENG - 149
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