SERVICE DATA AND SPECIFICATIONS (S.D.S.) — Inspection and Adjustment
EM-7024spec tableAll values apply to both CG10DE and CGA3DE engines.
Inspection and Adjustment
ENGINE COMPRESSION PRESSURE
Engine Compression Pressure — Unit: kPa (bar, kg/cm², psi)/350 rpm
Engine model
CG10DE, CGA3DECG10DE, CGA3DE
Standard
CG10DE, CGA3DE1,323 (13.2, 13.5, 192)
Minimum
CG10DE, CGA3DE1,127 (11.34, 11.5, 164)
Difference limit between cylinders
CG10DE, CGA3DE98 (0.98, 1.0, 14)
CYLINDER HEAD
Cylinder Head — Unit: mm (in)
Head surface flatness (CG10DE, CGA3DE)
Standard0.03 (0.0118)
Limit0.1 (0.0039)
VALVE
Valve — Unit: mm (in)
Valve head diameter "D" mm (in)
Intake / ExhaustIntake
CG10DE, CGA3DE27.40 - 27.60 (1.0787 - 1.0866)
Valve head diameter "D" mm (in)
Intake / ExhaustExhaust
CG10DE, CGA3DE22.40 - 22.60 (0.8819 - 0.8898)
Valve length "L" mm (in)
Intake / ExhaustIntake
CG10DE, CGA3DE95.50 - 96.00 (3.7598 - 3.7795)
Valve length "L" mm (in)
Intake / ExhaustExhaust
CG10DE, CGA3DE95.57 - 96.07 (3.7626 - 3.7823)
Valve stem diameter "d" mm (in)
Intake / ExhaustIntake
CG10DE, CGA3DE5.465 - 5.480 (0.2154 - 0.2157)
Valve stem diameter "d" mm (in)
Intake / ExhaustExhaust
CG10DE, CGA3DE5.445 - 5.460 (0.2144 - 0.2150)
Valve face angle "α" degree
Intake / Exhaust—
CG10DE, CGA3DE45°15' - 45°45'
Valve margin "T" limit mm (in)
Intake / Exhaust—
CG10DE, CGA3DE0.6 (0.0236)
Valve stem end surface grinding limit mm (in)
Intake / Exhaust—
CG10DE, CGA3DELess than 0.2 (0.008)
Valve clearance
Valve clearance — Unit: mm (in)
Intake mm (in)
CG10DE, CGA3DE0.32 - 0.40 (0.0126 - 0.0157)
Exhaust mm (in)
CG10DE, CGA3DE0.36 - 0.44 (0.0142 - 0.0173)
IMPORTANT
Valve clearances must always be checked when the engine is at normal operating temperature.