Nug

Valve head diameter /cv\

46.0 mm (1.81") 37.5 mm (1.48")

Valve head contacing face angle

45°

Valve stem diameter

(tx;

7.970 ~ 7.985 mm (0.3138 ~ 0.3144") 7.960 ~ 7.975 mm (0.3134 ~ 0.3140")

Valve overall length (EX)

124.5 ~ 125.1 mm (4.902 ~ 4.925") 124.7 ~ 125.3 mm (4.909 ~ 4.933")

Valve head edge thickness (IN) limit (EX)

0.8 mm (0.031") 1.0 mm (0.039")

Valve correcting limit

0.5 mm (0.02")

Valve stem to bushing (IN) oil clearance (EX)

0.025 ~ 0.060 mm (0.0010" ~ 0.0024") 0.035 ~ 0.070 mm (0.0014" ~ 0.0028")

Valve stem to bushing (IN) oil clearance limit (EX)

0.10 mm (0.004") 0.12 mm (0.005")

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