0000-00
1. SPECIFICATION
Unit Description Specification Remark
Cylinder head Height 131.9 to 132.1 mm -
Flatness below 0.1 mm -
Valve protrusion Intake valve 0.6 to 1.0 mm -
Exhaust valve 0.6 to 1.0 mm -
Flatness on manifold
sideIntake manifold 0.08 mm -
Exhaust manifold 0.08 mm -
Connecting rod End play 0.5 to 0.31 mm -
Camshaft Axial end play Intake 0.1 to 0.35 mm -
Exhaust 0.1 to 0.35 mm -
Camshaft position
sensorDistance between Camshaft position sensor
and sprocket0.20 to 1.80 mm -
Valve Clearance between
valve and pistonIntake 0.6 to 1.0mm -
Exhaust 0.6 to 1.0mm -
Valve recess Intake 0.6 to 1.0mm -
Exhaust 0.6 to 1.0mm -
Cylinder block Piston protrusion 0.475 to 0.745mm -
Piston ring TOP ring end gap 0.20 to 0.35 mm -
2nd ring end gap 0.35 to 0.50 mm -
3rd ring end gap 0.2 to 0.40 mm -
Offset 0.3 mm -
Head gasket Piston protrusion 0.475~0.540 1.2t -
0.541 to 0.649 1.3t -
0.650 to 0.745 1.4t -
2) Cylinder Head
(1) Cylinder head mating surface check
Specified value
Total height "A"131.9 to 132.1 mm
Minimum height after machining131.9 mm
FlatnessLongitudinal direction0.1 / 150
Transverse direction0.15
Parallel deviation of cylinder headbelow 0.1 mm
Peak-to valley of surfaceRmax 7 Rz 6.3
valve recess "a"Intake valve0.6 to 1.0 mm
Exhaust valve0.6 to 1.0 mm
Measure the cylinder head height "A". 1.
If the height is less than the limit, the cylinder
head must be replaced. -
Insert the valves into the valve guides and
measure the recesses. 2.
If the measured value is out of the specified
range, machine the valve seat as much as
necessary until the specified value is
achieved. -
0.6 to 1.0 mm
(2) Cylinder head pressure Leak test
with compressed air to 2 bar.
