Valve Head Diameter

Inlet

30.50 mm

Exhaust

24.20 mm

Valve Lift

Inlet

8.50 mm

Exhaust

7.36 mm

Valve Stem Diameter

Inlet

3.975-3.990 mm

Service Limit

3.965 mm

Valve Stem Diameter

Exhaust

3.965-3.980 mm

Service Limit

3.955 mm

Valve Guide Bore Diameter

Inlet

4.000 - 4.015 mm

Service Limit

4.043 mm

Valve Guide Bore Diameter

Exhaust

4.000 - 4.015 mm

Service Limit

4.043 mm

Valve Stem to Guide Clearance

Inlet

0.010-0.040 mm

Service Limit

0.078 mm

Valve Stem to Guide Clearance

Exhaust

0.020-0.050 mm

Service Limit

0.088 mm

Valve Seat Width (in head)

Inlet

1.20 mm

Service Limit

1.50 mm

Valve Seat Width (in head)

Exhaust

1.00 mm

Service Limit

1.70 mm

Valve Seat Width (valve)

Inlet

0.990-1.838 mm

Exhaust

1.065-1.918 mm

Valve Seat Angle

45°

Inlet/Exhaust Valve Spring Load and Length

508 N +/- 25 N @27.5 mm

Valve Clearance

Inlet

0.10 - 0.20 mm

Exhaust

0.325 - 0.375 mm

Valve Bucket Diameter

Inlet

25.385 - 25.399 mm

Service Limit

25.375 mm

Valve Bucket Diameter

Exhaust

25.385 - 25.399 mm

Service Limit

25.375 mm

Valve Bucket Bore Diameter

Inlet

25.421 - 25.431 mm

Service Limit

25.449 mm

Valve Bucket Bore Diameter

Exhaust

25.421 - 25.431 mm

Service Limit

25.449 mm