Valve: Testing and Inspection

A. Valve Head Diameter
Intake: 31.00 mm ± 0.15 mm
Exhaust: 27.00 mm ± 0.15 mm

B. Valve Stem Diameter
Intake: 6.97 mm + 0 or - 0.015 mm
Exhaust: 6.96 mm + 0 or - 0.015 mm

C. Overall Length
Intake: 104.05 mm ± 0.18 mm
Exhaust: 103.30 mm ± 0.18 mm
Max. Machining Allowance: 0.4 mm

D. Valve Head Height
Intake/Exhaust: 1.5 mm
Min. Height After Grinding: 1.2 mm

E. Sealing Face Angle
Intake: 44.5°
Exhaust: 44.5°





Valve Stem Height
Height: 48.5 mm ± 0.4 mm
Max. Machining Allowance: 0.4 mm





Valve Seats (Reconditioned)
Angles:
Sealing Face Angle: 45°
Relief Angle, Upper, Intake: 15°
Relief Angle, Upper, Exhaust: 15°
Relief Angle, Lower: 60°

Valve Seat Width: (a)
Intake: 1.4-1.8 mm
Exhaust: 1.8-2.2 mm





Tappets, Dimensions
A. External Diameter: 32 mm + 0.025 or - 0.041 mm
B. External Height: 26 mm ± 0.5 mm

Distance Between Top Of Tappet And Piston
C. Unloaded: 18.40 mm
C. Compressed: 16.15 mm + 0.3 or - 0.1 mm





Valve Springs, Dimensions
Diameter
External: 27.9 mm ± 0.2 mm
Internal: 20.1 mm ± 0.2 mm

Length And Load
L: 42.4 mm (0 N)
L1: 34.0 mm (270 N ± 15 N)
L2: 24.5 mm (670 N ± 32 N)





Valve Guides, Markings And Dimensions
Diameter:
Standard: 12.0 mm
Oversize 1: 12.1 mm
Oversize 2: 12.2 mm

No. Of Grooves:
Standard: 0
Oversize 1: 1
Oversize 2: 2





Clearance Between New Components:
Intake: 0.03-0.06 mm
Exhaust: 0.04-0.07 mm

Max. Clearance, Used Components:
Intake/Exhaust: 0.15 mm