Mitsubishi Workshop Service and Repair Manuals

Valve: Specifications

Valve Overall Length:

Intake:

Standard Value ....................................................................................................................................................................  102.97 mm (4.0539 inch)
Limit ....................................................................................................................................................................................  102.47 mm (4.0342 inch)

Exhaust:

Standard Value ....................................................................................................................................................................  102.67 mm (4.0421 inch)
Limit ....................................................................................................................................................................................  102.17 mm (4.0224 inch)

Valve Thickness Of Valve Head (Margin):

Intake:

Standard Value ............................................................................................................................................................................  1.2 mm (0.047 inch)
Limit ............................................................................................................................................................................................  0.7 mm (0.028 inch)

Exhaust:

Standard Value ............................................................................................................................................................................  2.0 mm (0.079 inch)
Limit ............................................................................................................................................................................................  1.5 mm (0.059 inch)

Valve Stem Diameter:

Intake .................................................................................................................................................................................................  8.0 mm (0.315 inch)
Exhaust ..............................................................................................................................................................................................  7.9 mm (0.311 inch)

Valve Stem To Guide Clearance:

Intake:

Standard value .................................................................................................................................................  0.03 - 0.06 mm (0.0012 - 0.0024 inch)
Limit ..........................................................................................................................................................................................  0.10 mm (0.004 inch)

Exhaust:

Standard Value ................................................................................................................................................  0.05 - 0.09 mm (0.0020 - 0.0035 inch)
Limit ..........................................................................................................................................................................................  0.15 mm (0.006 inch)

Valve Stem Projection:

Intake:

Standard Value ......................................................................................................................................................................  41.65 mm (1.6398 inch)
Limit ......................................................................................................................................................................................  42.15 mm (1.6594 inch)

Exhaust:

Standard Value ......................................................................................................................................................................  41.65 mm (1.6398 inch)
Limit ......................................................................................................................................................................................  42.15 mm (1.6594 inch)

Valve Face Angle .................................................................................................................................................................................................  45° - 45.5°