Section 124 (Engine Mechanical System - General Information - 1.6L - Optima (Except HEV)): Specifications: Notes
WARNING: This page is about a different variant/trim than selected.
ENGINE MECHANICAL SYSTEM SPECIFICATIONS
| Description | Specifications | Limit | |
|---|---|---|---|
| General | |||
| Type | In line, DOHC | ||
| Number of cylinders | 4 | ||
| Bore | 77 mm (3.0315 in) | ||
| Stroke | 85.44 mm (3.3638 in) | ||
| Total displacement | 1, 591 cc (97.09 cu.in) | ||
| Compression ratio | 10.0: 1 | ||
| Firing order | 1 - 3 - 4 - 2 | ||
| Valve timing | |||
| Intake valve | Opens | ATDC 10°/BTDC 40° | |
| Closes | ABTC 59°/ABDC 9° | ||
| Exhaust valve | Opens | BBDC 36°/ABDC 4° | |
| Closes | ATDC 3°/ATDC 43° | ||
| Cylinder head | |||
| Flatness of gasket surface | Less than 0.05 mm (0.0020 in) for total area Less than 0.02 mm (0.0008 in) for a section of 100 mm (3.9370 in) X 100 mm (3.9370 in) |
||
| Camshaft | |||
| Cam height | Intake | 43.55 mm (1.7145 in) | |
| Exhaust | 42.60 mm (1.6771 in) | ||
| Journal outer diameter (Intake, Exhaust) | 22.964 - 22.980 mm (0.9041 - 0.9047 in) | ||
| Camshaft cap oil clearance | 0.027 - 0.058 mm (0.0011 - 0.0023 in) | 0.1 mm (0.0039 in) | |
| End play | 0.10 - 0.20 mm (0.0039 - 0.0079 in) | ||
| Valve | |||
| Valve length | Intake | 93.15 mm (3.6673 in) | |
| Exhaust | 92.60 mm (3.6457 in) | ||
| Stem outer diameter | Intake | 5.465 - 5.480 mm (0.2152 - 0.2157 in) | |
| Exhaust | 5.458 - 5.470 mm (0.2149 - 0.2154 in) | ||
| Face angle | 45.25° - 45.75° | ||
| Thickness of valve head (margin) | Intake | 1.10 mm (0.0433 in) | 0.8mm (0.0315in) |
| Exhaust | 1.26 mm (0.0496 in) | 1.0 mm (0.0394 in) | |
| Valve stem to valve guide clearance | Intake | 0.020 - 0.047 mm (0.0008 - 0.0019 in) | 0.10 mm (0.0039 in) |
| Exhaust | 0.030 - 0.054 mm (0.0012 - 0.0021 in) | 0.15 mm (0.0059 in) | |
| Valve guide | |||
| Length | Intake | 40.3 - 40.7 mm (1.5866 - 1.6024 in) | |
| Exhaust | 40.3 - 40.7 mm (1.5866 - 1.6024 in) | ||
| Valve spring | |||
| Free length | 45.1 mm (1.7756 in) | ||
| Out of squareness | Less than 1.5° | ||
| Cylinder block | |||
| Cylinder bore | 77.00 - 77.03 mm (3.0315 - 3.0327 in) | ||
| Flatness of gasket surface | Less than 0.05 mm (0.0020 in) for total area Less than 0.02 mm (0.0008 in) for a section of 100 mm (3.9370 in) X 100 mm (3.9370 in) |
||
| Piston | |||
| Piston outer diameter | 76.97 - 77.00 mm (3.0303 - 3.0315 in) | ||
| Piston to cylinder clearance | 0.020 - 0.040 mm (0.0008 - 0.0016 in) | ||
| Ring groove width | No. 1 ring groove | 1.23 - 1.25 mm (0.0484 - 0.0492 in) | 1.26 mm (0.0496 in) |
| No. 2 ring groove | 1.53 - 1.55 mm (0.0602 - 0.0610 in) | 1.26 mm (0.0496 in) | |
| Oil ring groove | 2.01 - 2.03 mm (0.0791 - 0.0799 in) | 2.05 mm (0.0807 in) | |
| Piston ring | |||
| Side clearance | No. 1 ring | 0.04 - 0.08 mm (0.0016 - 0.0031 in) | 0.1 mm (0.0039 in) |
| No. 2 ring | 0.04 - 0.08 mm (0.0016 - 0.0031 in) | 0.1 mm (0.0039 in) | |
| Oil ring | 0.02 - 0.06 mm (0.0008 - 0.0024 in) | 0.2 mm (0.0079 in) | |
| End gap | No. 1 ring | 0.14 - 0.24 mm (0.0055 - 0.0094 in) | 0.30 mm (0.0118 in) |
| No. 2 ring | 0.30 - 0.45 mm (0.0118 - 0.0177 in) | 0.50 mm (0.0197 in) | |
| Oil ring | 0.20 - 0.40 mm (0.0079 - 0.0157 in) | 0.80 mm (0.0315 in) | |
| Piston pin | |||
| Piston pin outer diameter | 19.997 - 20.000 mm (0.7872 - 0.7874 in) | ||
| Piston pin hole inner diameter | 20.004 - 20.009 mm (0.7875 - 0.7878 in) | ||
| Piston pin hole clearance | 0.004 - 0.012 mm (0.0001 - 0.0005 in) | ||
| Connecting rod small end hole inner diameter | 20.005 - 20.011 mm (0.7876 - 0.7878 in) | ||
| Connecting rod | |||
| Connecting rod big end inner diameter | 45.000 - 45.018 mm (1.7717 - 1.7724 in) | ||
| Connecting rod bearing oil clearance | 0.030 - 0.050 mm (0.0012 - 0.0020 in) | 0.060 mm (0.0024 in) | |
| Side clearance | 0.10 - 0.25 mm (0.0039 - 0.0098 in) | 0.35 mm (0.0138 in) | |
| Crankshaft | |||
| Main bearing oil clearance | No. 1, 2, 3, 4, 5 | 0.020 - 0.041 mm (0.0009 - 0.0016 in) | 0.05 mm (0.0020 in) |
| End play | 0.05 - 0.25 mm (0.0020 - 0.0098 in) | 0.3 mm (0.0118 in) | |
| Engine oil | |||
| Oil quantity | Total | 4.6 L - 4.9 L (1.21 - 1.29 U.S.gal., 4.86 - 5.17 U.s.qt., 4.04 - 4.30 lmp.qt) | When replacing a short engine or a block assembly |
| Oil pan | 4.2 L (1.10 U.S.gal., 4.43 U.S.qt., 3.69 lmp.qt.) | ||
| Drain and refill | 4.5 L (1.18 U.S.gal., 4.75 U.S.qt., 3.95 lmp.qt.) | Including oil filter | |
| Oil grade | Recommended | ACEA A5 or above/5W - 30 | |
| Allowed |
|
Usable if the recommended engine oil is not available | |
| Oil pressure (at 1000rpm) | 100kPa (1.0kg/cm2 , 14.5psi) or above | Oil temperature in oil pan: 110±2°C (230± 36°F) | |
| Cooling system | |||
| Cooling method | Forced circulation with cooling fan | ||
| Coolant quantity | Approx.6.5 L (1.72 U.S.gal., 6.87 U.S.qt., 5.72 lmp.qt.) | ||
| Thermostat | Type | Wax pellet type | |
| Opening temperature | 82 ± 1.5°C (179.6 ± 2.7°F) | ||
| Full opening temperature | 95°C (203°F) | ||
| Radiator cap | Main valve opening pressure | 93.16 - 122.58kpa (0.95 - 1.25kgf/cm2 , 13.51 - 17.78psi) | |
| Vacuum valve opening pressure | MAX. 6.86 kpa(0.07kgf/cm2 , 1.00 psi) | ||
| Water temperature sensor | |||
| Type | Thermister type | ||
| Resistance | 20°C (68°F) | 2.45±0.14 kΩ | |
| 80°C (176°F) | 0.3222 kΩ | ||