General Specifications
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GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Engine - 4.0L SOHC | |
| Displacement | 4.0L (244 cu in) |
| Number of cylinders | 6 |
| Bore | 100.4 mm (3.953 in) |
| Stroke | 84.4 mm (3.32 in) |
| Firing order | 1-4-2-5-3-6 |
| Minimum oil pressure at 2,000 RPM (engine at normal operating temperature) | 103 kPa (15 psi) |
| Engine weight (without accessory drive components or flexplate or flywheel) | 189 Kg (417 lb) |
| Cylinder Head and Valve Train | |
| Cylinder head gasket surface flatness | 0.08 mm (0.003 in) total |
| Combustion chamber volume | 65.197 cc ± 2.068-2.018 cc |
| Valve arrangement (front to rear) | LH=I-E-I-E-I-E RH=E-I-E-I-E-I |
| Valve guide bore diameter | 7.00-7.018 mm (0.2756-0.2762 in) |
| Valve stem diameter intake | 6.965-6.98 mm (0.274-0.275 in) |
| Valve stem diameter exhaust | 6.95-6.965 mm (0.274 in) |
| Valve stem-to-guide clearance exhaust | 0.035-0.068 mm (0.001-0.003 in) |
| Valve stem-to-guide clearance intake | 0.020-0.053 mm (0.001-0.002 in) |
| Valve head diameter intake | 45.9-46.1 mm (1.807-1.815 in) |
| Valve head diameter exhaust | 38.9-39.1 mm (1.531-1.539 in) |
| Valve face runout | 0.03 mm (0.001 in) |
| Valve face angle | 45 degrees |
| Valve seat width (exhaust and intake) | 1.556-2.404 mm (0.06-0.094 in) 1.273-2.121 mm (0.05-0.083 in) |
| Valve seat runout (TIR maximum) | 0.059 mm (0.002 in) |
| Valve seat angle | 45 degrees |
| Valve spring free length intake | 43.1 mm (1.7 in) |
| Valve spring free length exhaust | 43.1 mm (1.7 in) |
| Valve spring squareness | ± 1.5 deg |
| Valve spring compression pressure intake (at specified height) (lb) | 275-305 N.m at 35.9-36.7 mm (202.84-224.968 lb-ft at 1.413-1.445 in) |
| Valve spring compression pressure exhaust (at specified height) (lb) | 275-305 N.m at 35.9-36.7 mm (202.84-224.968 lb-ft at 1.413-1.445 in) |
| Valve spring installed height intake | 39.86-40.86 mm (1.569-1.608 in) |
| Valve spring installed height exhaust | 39.86-40.68 mm (1.569-1.608 in) |
| Valve spring installed pressure | 320 newtons |
| Roller follower ratio | 1.98:1 |
| Camshaft | |
| Theoretical valve lift @ 0 lash | 12 mm (0.47 in) |
| Lobe lift intake | 6.584 mm (0.259 in) |
| Lobe lift exhaust | 6.584 mm (0.259 in) |
| Allowable lobe lift loss | 0.127 mm (0.005 in) |
| Journal diameter | 27.935-27.96 mm (1.099-1.101 in) |
| Journal bore inside diameter | 28.0-28.03 mm (1.102-1.104 in) |
| Journal to bearing clearancea | 0.04-0.095 mm (0.002-0.004 in) |
| Runout | 0.05 mm (0.002 in) |
| End play | 0.075-0.185 mm (0.0003-0.007 in) |
| Cylinder Block | |
| Cylinder bore diameter | 100.4 mm (3.953 in) |
| Cylinder bore maximum taper | 0.025 mm (0.001 in) |
| Cylinder bore maximum out-of-round | 0.025 mm (0.001 in) |
| Main bearing bore inside diameter | 60.634-60.620 mm (2.387-2.387 in) |
| Head gasket surface flatness | 0.1 mm (0.004 in) overall |
| Head gasket surface finish (RMS) | 60-150 |
| Crankshaft | |
| Main bearing journal diameter | 56.980-57.0 mm (2.243-2.244 in) |
| Main bearing journal maximum taper | 0.008 mm (0.0003 in) |
| Main bearing journal maximum out-of-round | 0.008 mm (0.0003 in) |
| Main bearing journal-to-cylinder block clearance | 0.008-0.062 mm (0.0003-0.0024 in) |
| Connecting rod journal diameter | 53.98-54.0 mm (2.125-2.126 in) |
| Connecting rod journal maximum taper | 0.008 mm (0.0003 in) |
| Connecting rod journal maximum out-of-round | 0.008 mm (0.0003 in) |
| Crankshaft maximum end play | 0.05-0.32 mm (0.002-0.0126 in) |
| Main Bearings | |
| Clearance to crankshaft | 0.021-0.039 mm (0.0008-0.0015 in) |
| Clearance to crankshaft allowable | 0.013-0.048 mm (0.0005-0.002 in) |
| Bearing wall thickness | 1.8-1.806 mm (0.0709-0.0711 in) |
| Piston and Connecting Rod | |
| Piston diameter - coded STD | 100.380-100.400 mm (3.952-3.9528 in) |
| Piston diameter - coded 0.5 | 100.880-100.900 mm (3.972 in) |
| Piston diameter - coded 1.0 | 101.350-101.370 mm (3.990-3.991 in) |
| Piston-to-cylinder bore clearance | 0.030-0.060 mm (0.0012-0.0023 in) |
| Piston top ring end gap | 0.200-0.450 mm (0.008-0.018 in) |
| Piston bottom ring end gap | 0.450-0.700 mm (0.018-0.028 in) |
| Piston top ring groove width | 1.64-1.66 mm (0.0645-0.0654 in) |
| Piston bottom ring groove width | 1.79-1.81 mm (0.0705-0.0713 in) |
| Piston oil ring groove width | 3.5-3.53 mm (0.1378-0.1399 in) |
| Piston top ring width | 1.578-1.598 mm (0.062-0.063 in) |
| Piston bottom ring width | 1.728-1.74 mm (0.068-0.069 in) |
| Piston top ring-to-groove clearance | 0.050-0.082 mm (0.002-0.003 in) |
| Piston bottom ring-to-groove clearance | 0.050-0.082 mm (0.002-0.003 in) |
| Piston pin bore diameter (red) | 24.007-24.010 mm (0.9451-0.9452 in) |
| Piston pin bore diameter (blue) | 24.010-24.013 mm (0.9452-0.9453 in) |
| Piston pin diameter (red) | 23.994-23.997 mm (0.9446-0.9447 in) |
| Piston pin diameter (blue) | 23.997-24.000 mm (0.9447-0.9449 in) |
| Piston pin length | 72.0-72.8 mm (2.835-2.866 in) |
| Piston pin-to-piston pin fit | 0.01-0.016 mm (0.0004-0.0006 in) |
| Piston pin-to-connecting rod clearance | Press fit -0.018 to -0.042 mm (-0.0007 to -0.0017 in) |
| Connecting rod pin bore diameter | 23.958-23.976 mm (0.943-0.944 in) |
| Connecting rod length | 145.965-146.035 mm (5.746-5.749 in) |
| Connecting rod maximum allowed bend | 0.0125 mm (0.00049 in) per 25.4 mm (1.000 in) |
| Connecting rod maximum allowed twist | 0.038 mm (0.0015 in) per 25.4 mm (1.000 in) |
| Connecting rod bearing bore diameter | 56.82-56.84 mm (2.2370-2.2378 in) |
| Connecting rod bearing-to-crankshaft clearance | 0.022-0.064 mm (0.0008-0.0025 in) |
| Connecting rod side clearance (assembled to crankshaft) | 0.092-0.268 mm (0.0036-0.0106 in) |
a Tighten camshaft bearing cap bolts to 15 N.m (11 lb-ft) when measuring journal clearance.