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ME(H4DOTC)-6
MECHANICAL
General Description
2. STi MODEL
NOTE:
STD: Standard I.D.: Inner Diameter O.D.: Outer Diameter OS: Oversize US: Undersize
Crankshaft
bearing
Crankshaft bearing thick-
ness
#1, #3
STD 1.998 — 2.011 mm (0.0787 — 0.0792 in)
0.03 mm
(0.0012
in) US
2.017 — 2.020 mm (0.0794 — 0.0795 in)
0.05 mm
(0.0020
in) US
2.027 — 2.030 mm (0.0798 — 0.0799 in)
0.25 mm
(0.0098
in) US
2.127 — 2.130 mm (0.0837 — 0.0839 in)
#2, #4, #5
STD 2.000 — 2.013 mm (0.0787 — 0.0793 in)
0.03 mm
(0.0012
in) US
2.019 — 2.022 mm (0.0795 — 0.0796 in)
0.05 mm
(0.0020
in) US
2.029 — 2.032 mm (0.0799 — 0.0800 in)
0.25 mm
(0.0098
in) US
2.129 — 2.132 mm (0.0838 — 0.0839 in)
Engine
Type
Horizontally opposed, liquid cooled, 4-cylinder,
4-stroke gasoline engine
Valve arrangement Belt driven, double overhead camshaft, 4-valve/cylinder
Bore × Stroke mm (in) 92 × 75 (3.62 × 2.95)
Piston displacement
cm
3
(cu in)
1,994 (121.67)
Compression ratio 8.0
Compression pres-
sure (at 200 — 300
rpm)
kPa (kgf/cm
2
, psi)
981 — 1,177 (10 — 12, 142 — 171)
Number of piston rings Pressure ring: 2, Oil ring: 1
Intake valve timing
Opening
Max. retard ATDC 6°
Min. advance BTDC 24°
Closing
Max. retard ABDC 68°
Min. advance ABDC 38°
Exhaust valve timing
Opening BBDC 58°
Closing ATDC 10°
Valve clearance
Intake mm (in) 0.20±0.02 (0.0079±0.0008)
Exhaust mm (in) 0.35±0.02 (0.0138±0.0008)
Idling speed
[At neutral position on MT]
rpm
700±100 (No load)
800±150 (A/C switch ON)
Firing order 1 → 3 → 2 → 4
Ignition timing BTDC/rpm 12°±10°/700