Service Data and Specifications (S.D.S.) - Inspection and Adjustment (Cont'd)
EM-253spec tableInspection and Adjustment (Cont'd)
Valve guide
Valve guide - Unit: mm (in)
Valve guide Outer diameter
Intake - Standard9.523 - 9.534 (0.3749 - 0.3754)
Intake - Service9.723 - 9.734 (0.3828 - 0.3832)
Exhaust - Standard9.523 - 9.534 (0.3749 - 0.3754)
Exhaust - Service9.723 - 9.734 (0.3828 - 0.3832)
Valve guide Inner diameter [Finished size]
Intake - Standard5.500 - 5.515 (0.2165 - 0.2171)
Intake - Service5.500 - 5.515 (0.2165 - 0.2171)
Exhaust - Standard5.500 - 5.515 (0.2165 - 0.2171)
Exhaust - Service5.500 - 5.515 (0.2165 - 0.2171)
Cylinder head valve guide hole diameter
Intake - Standard9.475 - 9.496 (0.3730 - 0.3739)
Intake - Service9.685 - 9.696 (0.3813 - 0.3817)
Exhaust - Standard9.475 - 9.496 (0.3730 - 0.3739)
Exhaust - Service9.685 - 9.696 (0.3813 - 0.3817)
Interference fit of valve guide
Intake - Standard0.027 - 0.059 (0.0011 - 0.0023)
Intake - Service0.027 - 0.049 (0.0011 - 0.0019)
Exhaust - Standard0.027 - 0.059 (0.0011 - 0.0023)
Exhaust - Service0.027 - 0.049 (0.0011 - 0.0019)
Stem to guide clearance
Intake - Standard0.020 - 0.050 (0.0008 - 0.0020)
Intake - Service0.020 - 0.050 (0.0008 - 0.0020)
Exhaust - Standard0.040 - 0.070 (0.0016 - 0.0028)
Exhaust - Service0.040 - 0.070 (0.0016 - 0.0028)
Valve deflection limit (Dial gauge reading)
Intake - Standard0.2 (0.008)
Intake - Service0.2 (0.008)
Exhaust - Standard0.2 (0.008)
Exhaust - Service0.2 (0.008)
Valve spring
Valve spring
Free height mm (in)
Value41.19 (1.6217)
Pressure N (kg, lb) at height mm (in)
Standard
Value344.42 (35.12, 77.44) at 25.26 (0.9945)
Pressure N (kg, lb) at height mm (in)
Limit
Value323.73 (33.01, 72.79) at 25.26 (0.9945)
Out-of-square mm (in)
ValueLess than 1.80 (0.0709)
Valve lifter
Valve lifter - Unit: mm (in)
Valve lifter outside diameter
Value29.960 - 29.975 (1.1795 - 1.1801)
Lifter guide inside diameter
Value30.000 - 30.021 (1.1811 - 1.1819)
Clearance between lifter and lifter guide
Value0.025 - 0.061 (0.0010 - 0.0024)