Subaru LEGACY 2006 Manual page 778

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MECHANICAL
1. General Description
A: SPECIFICATION
Model
Cylinder arrangement
Valve system mechanism
Bore × Stroke
Piston displacement
Compression ratio
Compression pressure (at 350 rpm)
Number of piston rings
Engine Intake valve timing
Exhaust valve timing
Valve clearance
Idling speed [at neutral position on MT,
or "P" or "N" position on AT]
Ignition order
Ignition Timing
NOTE:
US: undersize OS: oversize
General Description
mm (in)
3
cm (cu in)
2
kPa (kg/cm , psi)
Open
Constant
Close
Open
Low
speed
Close
Open
High
speed
Close
Open
Close
Intake
mm (in)
Exhaust
MT
rpm
AT
MT
BTDC/
rpm
AT
ME(H4SO)-2
2.5 L
Horizontally opposed, liquid cooled, 4-cylin-
der,
4-stroke gasoline engine
Belt driven
Single overhead camshaft
4 valve cylinder
99.5 × 79.0 (3.917 × 3.110)
2,457 (150)
10.0
1,020 — 1,275 (10.4 — 13.0, 148 — 185)
Pressure ring: 2, Oil ring: 1
BTDC 0°
ABDC 58°
BTDC 0°
ABDC –50°
BTDC 14°
ABDC 62°
BBDC46°
ATDC14°
0.20±0.04 (0.0079±0.0016)
0.25±0.04 (0.0098±0.0016)
650±100 (No load)
850±100 (A/C ON)
700±100 (No load)
850±100 (A/C ON)
1 → 3 → 2 → 4
10°±8°/650
15°±8°/700