| General | | |
| Type | In-line, Double Overhead Camshaft | |
| Number of cylinders | 4 | |
| Bore | 86.5 mm (3.41 in.) | |
| Stroke | 100 mm (3.94 in.) | |
| Total displacement | 2351 cc (143.5 cu.in.) | |
| Compression ratio | 10 : 1 | |
| Firing order | 1 - 3 - 4 - 2 | |
| Valve timing | | |
| Intake valve | | |
| Open (BTDC) | 12° | |
| Close (ABDC) | 56° | |
| Exhaust valve | | |
| Open (BBDC) | 54° | |
| Close (ATDC) | 14° | |
| Cylinder head | | |
| Flatness of gasket surface | Max. 0.03 mm (0.0012 in.) | 0.2 mm (0.008 in.) |
| Flatness of manifold mounting surface | 0.15 mm (0.0059 in.) | 0.3 mm (0.012 in.) |
| Dimensions for reworking oversize valve seat hole | | |
| Intake | | |
| 0.3 mm (0.012 in.) O.S. | 35.3 ~ 35.325 mm (1.39 ~ 1.3907 in.) | |
| 0.6 mm (0.024 in.) O.S. | 35.6 ~ 35.625 mm (1.40 ~ 1.4026 in.) | |
| Exhaust | | |
| 0.3 mm (0.012 in.) O.S. | 33.3 ~ 33.325 mm (1.31 ~ 1.3120 in) | |
| 0.6 mm (0.024 in.) O.S. | 33.6 ~ 33.625 mm (1.32 ~ 1.3238 in.) | |
| Dimensions for reworking oversize valve guide hole (both intake and exhaust) | | |
| 0.05 mm (0.002 in.) O.S. | 12.05 ~ 12.068 mm (0.4751 in.) | |
| 0.25 mm (0.010 in.) O.S. | 12.25 ~ 12.268 mm (0.4830 in.) | |
| 0.50 mm (0.020 in.) O.S. | 12.50 ~ 12.518 mm (0.4928 in.) | |
| Camshaft | | |
| Cam height | | |
| Intake | 35.493 mm (1.3974 in.) | 34.993 mm (1.3776 in.) |
| Exhaust | 35.317 mm (1.3904 in.) | 34.817 mm (1.3707 in.) |
| Journal O.D. | 26 mm (1.02 in.) | |
| Bearing oil clearancce | 0.040 ~ 0.076 mm (0.0020 ~ 0.0030 in.) | |
| End play | 0.1 ~ 0.15 mm (0.004 ~ 0.006 in.) | |
| Valve | | |
| Valve length | | |
| Intake | 109.5 mm (4.311 in.) | |
| Exhaust | 109.7 mm (4.319 in.) | |
| Stem O.D. | | |
| Intake | 6.565 ~ 6.580 mm (0.2585 ~ 0.2591 in.) | |
| Exhaust | 6.530 ~ 6.550 mm (0.2571 ~ 0.2579 in.) | |
| Face angle | 45° ~ 45° 5' | |
| Thickness of valve head (margin) | | |
| Intake | 1.0 mm (0.039 in.) | 0.7 mm (0.028 in.) |
| Exhaust | 1.5 mm (0.059 in.) | 1.0 mm (0.039 in.) |
| Valve stem to valve guide clearance | | |
| Intake | 0.020 ~ 0.047 mm (0.0008 ~ 0.0019 in.) | 0.1 mm (0.0039 in.) |
| Exhaust | 0.050 ~ 0.085 mm (0.0020 ~ 0.0033 in.) | 0.15 mm (0.0059 in.) |
| Vavle guide | | |
| Length | | |
| Intake | 45.5 mm (1.791 in.) | |
| Exhust | 50.5 mm (1.988 in.) | |
| Service over size | 0.05, 0.25, 0.50 mm (0.002, 0.010, 0.020 in.) | |
| Valve seat | | |
| Width of seat contact | 0.9 ~ 1.3 mm (0.035 ~ 0.051 in.) | |
| Seat angle | 44° ~ 44°. 51 | |
| Service size | 0.3 mm (0.012 in.) 0.6 mm (0.024 in.) oversize | |
| Vavle sprin | | |
| Free length | 45.82 mm (1.8039 in.) | |
| Load | 25.3kg / 40 mm (55.78 lb /1.57 in.) at installed height | |
| Out - of - square | Less than 1.5° | |
| Cylinder block | | |
| Cylinder bore | 86.5+0.03 mm (3.406+0.0012 in.) | |
| Out-of-round and taper of cylinder bore | Less than 0.01 mm (0.0004 in.) | |
| Flatness of gasket surface | Less than 0.05 mm (0.0020 in.) | 0.1 mm (0.0039 in.) |
| Piston | | |
| O.D. | 86.47 ~ 86.5 mm (3.404 ~ 3.406 in.) | |
| Piston - to - cylinder clearance | 0.02 ~ 0.04 mm (0.0008 ~ 0.0016 in.) | |
| Ring groove width | | |
| No. 1 | 1.22 ~ 1.24 mm (0.048 ~ 0.049 in.) | |
| No. 2 | 1.51 ~ 1.53 mm (0.059 ~ 0.060 in.) | |
| Oil | 2.81 ~ 2.83 mm (0.111 ~ 0.1114 in.) | |
| Service size | 0.5 mm (0.020 in.) oversize | |
| Piston ring | | |
| Side clearnace | | |
| No. 1 | 0.03 ~ 0.07 mm (0.0012 ~ 0.0028 in.) | |
| No. 2 | 0.02 ~ 0.06 mm (0.0008 ~ 0.0024 in.) | |
| Oil ring End gap | 0.06 ~ 0.15 mm (0.0024 ~ 0.0059 in.) | 0.1 mm (0.0039 in.) |
| No. 1 | 0.25 ~ 0.35 mm (0.0098 ~ 0.0138 in.) | 0.8 mm (0.031 in.) |
| No. 2 | 0.40 ~ 0.55 mm (0.0157 ~ 0.0216 in.) | 0.8 mm (0.031 in.) |
| Oil ring side rail | 0.10 ~ 0.40 mm (0.0039 ~ 0.0157 in.) | 1.0 mm (0.039 in.) |
| Connecting rod | | |
| Bend | 0.05 mm (0.0020 in.) | |
| Twist | 0.1 mm (0.004 in.) | |
| Connecting rod big end to crankshaft | 0.10 ~ 0.25 mm (0.0040 ~ 0.0098 in.) | 0.4 mm (0.0157 in.) |
| Side clearance | | |
| Piston pis installation force | 1250 ± 500 kg (2756 ± 1100 lb.ft) | |
| Connecting rod pin O.D | 48 ~ 48.015 mm (1.890 ~ 1.8903 in.) | |
| Connecting rod bearing oil clearance | 0.015 ~ 0.048 mm (0.0006 ~ 0.0019 in.) | 0.1 mm (0.0039 in.) |
| Crankshaft main bearing oil clearance | | |
| No. 1, 2, 4, 5 journal | 0.018 ~ 0.036 mm (0.0007 ~ 0.0014 in.) | 0.1 mm (0.0039 in.) |
| No. 3 journal | 0.024 ~ 0.042 mm (0.0009 ~ 0.0017 in.) | |
| Crankshaft | | |
| Journal O.D | 56.982 ~ 57.000 mm (2.2434 ~ 2.2441 in.) | |
| Out - of - round of journal and pin | Less than 0.015 mm (0.0006 in.) | |
| Taper of journal and pin | Less than 0.005 mm (0.0002 in.) | |
| End play | 0.05 ~ 0.25 mm (0.0020 ~ 0.0098 in.) | 0.25 mm (0.0098 in.) |
| Flywheel | | |
| Runout | | 0.13 mm (0.0051 in.) |
| Oil pressure at idle | 80 kPa (11.6 psi) | |
| [Oil temperature is 75-90°C (167-194°F)] | | |
| Oil pump | | |
| Tip clearance | | |
| Driver gear | 0.16 ~ 0.21 mm (0.0063 ~ 0.0083 in.) | 0.25 mm (0.0098 in.) |
| Driven gear | 0.18 ~ 0.21 mm (0.0071 ~ 0.0083 in.) | 0.25 mm (0.0098 in.) |
| Side clearance | | |
| Drive gear | 0.08 ~ 0.14 mm (0.0031 ~ 0.0055 in.) | 0.25 mm (0.0098 in.) |
| Driven gear | 0.06 ~ 0.12 mm (0.0024 ~ 0.0047 in.) | 0.25 mm (0.0098 in.) |
| Relief spring | | |
| Free length | 46.6 mm (1.835 in.) | |
| Load [61 N (13.5 lb)] | 40.1 mm (1.579 in.) | |
| Right silent shaft | | |
| Front journal diameter | 18.467 ~ 18.480 mm (0.7270 ~ 0.7276 in.) | |
| Rear journal diameter | 40.951 ~ 40.967 mm (1.6516 ~ 1.6129 in.) | |
| Oil clearance | | |
| Front | 0.020 ~ 0.061 mm (0.0008 ~ 0.0024 in.) | |
| Rear | 0.050 ~ 0.091 mm (0.0020 ~ 0.0036 in.) | |
| Left silent shaft | | |
| Front journal diameter | 18.467 ~ 18.480 mm (0.7270 ~ 0.7276 in.) | |
| Rear journal diameter | 40.951 ~ 40.967 mm (1.6122 ~ 1.6130 in.) | |
| Oil clearance | | |
| Front | 0.020 ~ 0.054 mm (0.0008 ~ 0.0021 in.) | |
| Rear | 0.042 ~ 0.083 mm (0.0017 ~ 0.0033 in.) | |
| Cooling method | Forced circulation with electric fan | |
| Cooling system quantity | 7.0 lit (7.4 U.S.qts., 6.1 lmp.qts.) [For DOHC] | |
| Thermostat | | |
| Type | Wax pellet type with jiggle valve | |
| Normal opening temperature | 82°C (180°F) | |
| Opening temperature range | 80.5 ~ 83.5°C (176 ~ 183°F) | |
| Wide open temperature | 95°C (203°F) | |
| Radiator cap | | |
| Main valve opening pressure | 107.9 ± 14.7 kPa 1.1 ± 0.15 kg/cm 2 15.64 ± 2.13 psi) | |
| Main valve closing pressure | 83.4 kPa (0.85 kg/ cm 2 , 12.1 psi) | |
| Vacuum valve opening pressure | 6.86 kPa (-0.07 kg/ cm 2 , -1.00 psi) | |
| Air cleaner | | |
| Type | Dry type | |
| Element | Unwoven cloth type | |
| Exhaust pipe | | |
| Muffler | Expansion resonance type | |
| Suspension system | Rubber hangers | |
| Coolant temperature sensor | | |
| Type | Thermister type | |
| Resistance | | |
| 20°C (68°F) | 2.37 ± 0.24 kohms | |
| 80°C (176°F) | 0.29 ± 0.032 kohms | |
