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Drive Belts, Mounts, Brackets and Accessories > < Valve Spring|Specifications|Page 1905
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Valve: Specifications

Valve Specifications

Valve Head Diameter:

Intake .........................................................................................................................................................................................  31.00 mm ± 0.15 mm
Exhaust .......................................................................................................................................................................................  27.00 mm ± 0.15 mm

Valve Stem Diameter:

Intake ................................................................................................................................................................................  6.97 mm + 0 or - 0.015 mm
Exhaust .............................................................................................................................................................................  6.97 mm + 0 or - 0.015 mm

Overall Length:

Intake .......................................................................................................................................................................................  104.05 mm ± 0.18 mm
Exhaust .....................................................................................................................................................................................  103.30 mm ± 0.18 mm
Max. Machining Allowance .............................................................................................................................................................................  0.4 mm

Valve Margin thickness:

Intake/Exhaust ..................................................................................................................................................................................................  1.5 mm
Min. Height After Grinding ..............................................................................................................................................................................  1.2 mm

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

Clearance Between New Valve and Guide Components: 

Intake .....................................................................................................................................................................................................  0.03-0.06 mm
Exhaust ..................................................................................................................................................................................................  0.04-0.07 mm

Max. Clearance, Used valve and Guide Components:

Intake/Exhaust ................................................................................................................................................................................................  0.15 mm

NOTE:  Valve stem height is measured using gauge tool No. 999 5222, or equivalent, placed in cam bearings, and a suitable vernier caliper. 

Drive Belts, Mounts, Brackets and Accessories > < Valve Spring|Specifications|Page 1905