SPECIFICATION
| Engine | Model | 2.5 L | |||
|---|---|---|---|---|---|
| Cylinder arrangement | Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine | ||||
| Valve system mechanism | Belt driven Single overhead camshaft 4 valve/cylinder | ||||
| Bore x Stroke | Mm (in) | 99.5 x 79.0 (3.92 x 3.11) | |||
| Displacement | Cm 3 (cu in) | 2,457 (149.94) | |||
| Compression ratio | 10.0 | ||||
| Compression pressure (at 200 - 300 RPM) | KPa (kg/cm 2 , psi) (at 200 - 300 RPM) | Standard | 1,020 - 1,275 (10.4 - 13.0, 148 - 185) | ||
| Number of piston rings | Pressure ring: 2, Oil ring: 1 | ||||
| Intake valve timing | Constant | Open | BTDC 0° | ||
| Close | ABDC 58° | ||||
| Low speed | Open | BTDC 0° | |||
| Close | ABDC - 10° | ||||
| High speed | Open | BTDC 14° | |||
| Close | ABDC 62° | ||||
| Exhaust valve timing | Open | BBDC 30° | |||
| Close | ATDC14° | ||||
| Valve clearance | Mm (in) | Intake | 0.20±0.04 (0.0079±0.0016) | ||
| Exhaust | 0.25±0.04 (0.0098±0.0016) | ||||
| Idle speed (For CVT model, select lever in "P" or "N" range. For MT model, gear shift lever in neutral position.) | RPM | No load | Standard | CVT model: 675±100 MT Model: 650±100 | |
| A/C ON | Standard | 700 - 850±100 | |||
| Ignition order | 1 -->3-->2-->4 | ||||
| Ignition timing | BTDC/RPM | Standard | CVT model: 15°±107675 MT Model: 10°±107650 | ||
ENGINE MODEL SPECIFICATION
Note. US: Undersize OS: Oversize
| Belt tension adjuster | Adjuster rod protrusion amount | Mm (in) | 5.2 - 6.2 (0.205 - 0.244) | |||
|---|---|---|---|---|---|---|
| Valve rocker arm | Clearance between arm and shaft | Mm (in) | Standard | 0.020 - 0.054 (0.0008 - 0.0021) | ||
| Rocker arm inside diameter | Mm (in) | Standard | 22.020 - 22.041 (0.8669 - 0.8678) | |||
| Rocker shaft diameter | Mm (in) | Standard | 21.987 - 22.000 (0.8656 - 0.8661) | |||
| Camshaft | Bending limit | Mm (in) | 0.025 (0.00098) | |||
| Cam lobe height | Mm (in) | Intake | Constant | Standard | 40.075 - 40.175 (1.5778 - 1.5817) | |
| Low speed | Standard | 35.496 - 35.596 (1.3975 - 1.4014) | ||||
| High speed | Standard | 40.315 - 40.415 (1.5872 - 1.5911) | ||||
| Exhaust | Standard | 39.289 - 39.389 (1.5468 - 1.5507) | ||||
| Cam base circle diameter | Mm (in) | Standard | 34.00 (1.3386) | |||
| Base circle step of adjacent intake cams (low speed and high speed) | Mm (in) | Standard | 0.03 (0.001) | |||
| Oil clearance | Mm (in) | Standard | 0.055 - 0.090 (0.0022 - 0.0035) | |||
| Journal O.D. | Mm (in) | Standard | 31.928 - 31.945 (1.2570 - 1.2577) | |||
| Cylinder head journal inner diameter | Mm (in) | Standard | 32.000 - 32.018 (1.2598 - 1.2605) | |||
| Thrust clearance | Mm (in) | Standard | 0.030 - 0.090 (0.0012 - 0.0035) | |||
| Cylinder head | Warping limit (Mating surface with cylinder block) | Mm (in) | 0.035 (0.0014) | |||
| Grinding limit | Mm (in) | 0.1 (0.004) | ||||
| Standard height | Mm (in) | 97.5 (3.84) | ||||
| Valve seat | Seating angle between valve and valve seat | 90° | ||||
| Contacting width of valve and valve seat | Mm (in) | Intake | Standard | 0.8 - 1.4 (0.03 - 0.055) | ||
| Exhaust | Standard | 1.2 - 1.8 (0.047 - 0.071) | ||||
| Valve guide | Clearance between the valve guide and valve stem | Mm (in) | Intake | Standard | 0.035 - 0.062 (0.0014 - 0.0024) | |
| Exhaust | Standard | 0.040 - 0.067 (0.0016 - 0.0026) | ||||
| Inside diameter | Mm (in) | 6.000 - 6.012 (0.2362 - 0.2367) | ||||
| Valve stem outer diameter | Mm (in) | Intake | 5.950 - 5.965 (0.2343 - 0.2348) | |||
| Exhaust | 5.945 - 5.960 (0.2341 - 0.2346) | |||||
| Valve guide protrusion amount | Mm (in) | Intake | 20.0 - 21.0 (0.787 - 0.827) | |||
| Exhaust | 16.5 - 17.5 (0.650 - 0.689) | |||||
| Valve | Head edge thickness | Mm (in) | Intake | Standard | 0.8 - 1.2 (0.03 - 0.047) | |
| Exhaust | Standard | 1.0 - 1.4 (0.039 - 0.055) | ||||
| Overall length | Mm (in) | Intake | 120.6 (4.75) | |||
| Exhaust | 121.7 (4.79) | |||||
| Valve spring | Free length | Mm (in) | 55.2 (2.173) | |||
| Tension/spring height | N (kgf, lb)/mm (in) | Set | 235.3 - 270.7 (24 - 27.6, 52.9 - 60.8)/45.0 (1.772) | |||
| Lift | 578.9 - 639.9 (59.1 - 65.3, 130.3 - 143.9)/34.7 (1.366) | |||||
| Squareness | 2.5°, 2.4 mm (0.094 in) or less | |||||
| Cylinder block | Warping limit (Mating surface with cylinder head) | Mm (in) | 0.025 (0.00098) | |||
| Grinding limit | Mm (in) | 0.1 (0.004) | ||||
| Standard height | Mm (in) | 201.0 (7.91) | ||||
| Taper | Mm (in) | Standard | 0.015 (0.0006) | |||
| Out-of-roundness | Mm (in) | Standard | 0.010 (0.0004) | |||
| Cylinder to piston clearance at 20°C (68°F) | Mm (in) | Standard | 0.015 - 0.005 (-0.00059 - 0.00020) | |||
| Cylinder inner diameter boring limit (diameter) | Mm (in) | To 100.005 (3.9372) | ||||
| Piston | Piston grade point | Mm (in) | 38.2 (1.504) | |||
| Outer diameter | Mm (in) | Standard | A | 99.510 - 99.520 (3.9177 - 3.9181) | ||
| B | 99.500 - 99.510 (3.9173 - 3.9177) | |||||
| 0.25 (0.0098) OS | 99.750 - 99.770 (3.9272 - 3.9280) | |||||
| 0.50 (0.0197) OS | 100.000 - 100.020 (3.9370 - 3.9378) | |||||
| Piston pin | Degree of fit | Piston pin must be fitted into position with thumb at 20°C (68°F). | ||||
| Clearance between piston pin hole and piston pin | Mm (m) | Standard | 0.004 - 0.008 (0.0002 - 0.0003) | |||
| Piston ring | Piston ring gap | Mm (in) | Top ring | Standard | 0.20 - 0.35 (0.0079 - 0.0138) | |
| Second ring | Standard | 0.37 - 0.52 (0.0146 - 0.0205) | ||||
| Oil ring | Standard | 0.20 - 0.50 (0.0079 - 0.0197) | ||||
| Clearance between piston ring and piston ring groove | Mm (in) | Top ring | Standard | 0.040 - 0.080 (0.0016 - 0.0031) | ||
| Second ring | Standard | 0.030 - 0.070 (0.0012 - 0.0028) | ||||
| Connecting rod and connecting rod bearing | Bend or twist per 100 mm (3.94 in) in length | Mm (in) | Service limit | 0.10 (0.0039) | ||
| Thrust clearance | Mm (in) | Standard | 0.070 - 0.330 (0.0028 - 0.0130) | |||
| Oil clearance | Mm (in) | Standard | 0.016 - 0.044 (0.0006 - 0.0017) | |||
| Bearing size (Thickness at center) | Mm (in) | Standard | 1.492 - 1.501 (0.0587 - 0.0591) | |||
| 0.03 (0.0012) US | 1.510 - 1.513 (0.0594 - 0.0596) | |||||
| 0.05 (0.0020) US | 1.520 - 1.523 (0.0598 - 0.0600) | |||||
| 0.25 (0.0098) US | 1.620 - 1.623 (0.0638 - 0.0639) | |||||
| Bushing of small end | Clearance between piston pin and bushing | Mm (in) | Standard | 0 - 0.022 (0 - 0.0009) | ||
| Crankshaft and crankshaft bearing | Bending limit | Mm (in) | 0.035 (0.0014) | |||
| Crank pin | Out-of-roundness | Mm (in) | 0.003 (0.0001) | |||
| Cylindricality | Mm (in) | 0.004 (0.0002) | ||||
| Grinding limit (dia.) | Mm (in) | To 51.750 (2.0374) | ||||
| Crank journal | Out-of-roundness | Mm (in) | 0.005 (0.0002) | |||
| Cylindricality | Mm (in) | 0.006 (0.0002) | ||||
| Grinding limit (dia.) | Mm (in) | To 59.758 (2.3527) | ||||
| Crank pin outer diameter | Mm (in) | Standard | 51.984 - 52.000 (2.0466 - 2.0472) | |||
| 0.03 (0.0012) US | 51.954 - 51.970 (2.0454 - 2.0461) | |||||
| 0.05 (0.0020) US | 51.934 - 51.950 (2.0446 - 2.0453) | |||||
| 0.25 (0.0098) US | 51.734 - 51.750 (2.0368 - 2.0374) | |||||
| Crank journal outer diameter | Mm (in) | Standard | 59.992 - 60.008 (2.3619 - 2.3625) | |||
| 0.03 (0.0012) US | 59.962 - 59.978 (2.3607 - 2.3613) | |||||
| 0.05 (0.0020) US | 59.942 - 59.958 (2.3599 - 2.3605) | |||||
| 0.25 (0.0098) US | 59.742 - 59.758 (2.3520 - 2.3527) | |||||
| Bearing size (Thickness at center) | Mm (in) | #1,#3 | Standard | 1.998 - 2.011 (0.0787 - 0.0792) | ||
| 0.03 (0.0012) US | 2.017 - 2.020 (0.0794 - 0.0795) | |||||
| 0.05 (0.0020) US | 2.027 - 2.030 (0.0798 - 0.0799) | |||||
| 0.25 (0.0098) US | 2.127 - 2.130 (0.0837 - 0.0839) | |||||
| #2, #4, #5 | Standard | 2.000 - 2.013 (0.0787 - 0.0793) | ||||
| 0.03 (0.0012) US | 2.019 - 2.022 (0.0795 - 0.0796) | |||||
| 0.05 (0.0020) US | 2.029 - 2.032 (0.0799 - 0.0800) | |||||
| 0.25 (0.0098) US | 2.129 - 2.132 (0.0838 - 0.0839) | |||||
| Thrust clearance | Mm (in) | Standard | 0.030 - 0.115 (0.0012 - 0.0045) | |||
| Oil clearance | Mm (in) | Standard | 0.010 - 0.030 (0.0004 - 0.0012) | |||
BELT TENSION ADJUSTER REFERENCE
Scheme 1
Tightening torque: N.m (kgf-m, ft-lb)
T1: 6.4 (0.7,4.7)
T2: 20 (2.0, 14.8)
T3: 22 (2.2, 16.2)
T4: 25 (2.5, 18.4)
T5: 26.5 (2.7,19.5)
T6; 33 (3.4,24.3)
T7: 36 (3.7,26.6)
Scheme 2
Tightening torque: N.m (kgf-m, ft-lb)
T1: 5 (0.5,3.7)
T2: 9.75 (1.0,7.2)
T3: 24.5 (2.5, 18.1)
T4: 39 (4.0,28.8)
T5: 78 (8.0,57.5)
T6: Ref. to INSTALLATION , Crank Pulley.
Scheme 3
Tightening torque: N.m (kgf-m, ft-lb)
T1: 6 (0.6,4.4)
T2: 6.4 (0.7,4.7)
T3: 9.75 (1.0,7.2)
T4: 10 (1.0,7.4)
T5: 17 (1.7, 12.5)
T6: 18 (1.8,13.3)
T7: 25 (2.5, 18.4)
T8: Ref. to INSTALLATION , Cylinder Head.
T9: Ref. to INSTALLATION , Valve Rocker Assembly.
Scheme 4
Tightening torque: N.m (kgf-m, ft-lb)
T1: 6 (0.6, 4.4)
T2: 9.75 (1.0,7.2)
T3: 25 (2.5, 18.4)
Scheme 5
Scheme 6
Tightening torque: N.m (kgf-m, ft-lb)
T1: 5 (0.5,3.7)
T2: 6.4 (0.7,4.7)
T3: 10 (1.0,7.4)
T4: First 12 (1.2, 8.7) Second 12 (1.2, 8.7)
T5: 16 (1.6,11.8)
T6: 25 (2.5,18.4)
T7: 41.7 (4.3,30.8)
T8: 45 (4.6, 33.2)
T9: 70 (7.1,51.6)
T10: Ref. to INSTALLATION , Cylinder Block.
Scheme 7
Tightening torque: N.m (kgf-m, ft-lb)
T1: 45 (4.6,33.2)
T2: Ref. to INSTALLATION , Drive Plate.
T3: Ref. to INSTALLATION , Flywheel.
Scheme 8
Tightening torque: N.m (kgf-m, ft-lb)
T1: 25 (2.5, 18.4)
T2: 45 (4.6,33.2)
T3: 58 (5.9,42.8)
T4: 60 (6.1,44.3)
Refer to "Cylinder Head" for removal and installation procedures of the intake and exhaust valves. Ref. to REMOVAL , Cylinder Head. Ref. to INSTALLATION , Cylinder Head.
Refer to "Cylinder Block" for removal and installation procedures of pistons. Ref. to REMOVAL , Cylinder Block. Ref. to INSTALLATION , Cylinder Block.
Refer to "Cylinder Block" for removal and installation procedures of connecting rods. Ref. to REMOVAL , Cylinder Block. Ref. to INSTALLATION , Cylinder Block.
Refer to "Cylinder Block" for removal and installation procedures of the crankshaft. Ref. to REMOVAL , Cylinder Block. Ref. to INSTALLATION , Cylinder Block.