General Specifications
GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Engine General | |
| Displacement | 4.6L (281 CID) (2V) |
| No. cylinders | 8 |
| Bore/stroke | 90.2/90 mm (3.551181/3.543307 in) |
| Firing order | 1-3-7-2-6-5-4-8 |
| Oil pressure @ 93.33°C (200°F) | 40-70 psi |
| Camshaft | |
| Lobe lift-exhaust, LH | 6.59579 mm (0.259676 in) |
| Lobe lift-exhaust, RH | 6.58551 mm (0.2592713 in) |
| Lobe lift-intake | 6,58077 mm (0.2590847 in) |
| Lobe lift-allowable lift loss | 0 |
| Valve lift@zero lash- intake | 12.0 mm (0.4724409 in) |
| Valve lift@zero lash-exhaust | 12.0 mm (0.4724409 in) |
| Camshaft end play | 0.027-0.190 mm (0.001062989-0.007480292 in) |
| Camshaft end play service limit | 0.190 mm (0.007480292 in) |
| Camshaft journal to bearing clearance | 0.076-0.025 mm (0.002992117-0.000984249 in) |
| Clearance service limit-journal diameters | 26.962-26.936 mm (1.061493-1.060469 in) |
| Clearance service limit-journal inside diameter (cap assembled) | 27.012-26.987 mm (1.063461-1.062477 in) |
| Clearance service limit-camshaft runout: Full indicator measurement on all journals when supported on front and rear journal. | 0.09 mm (0.003543296 in) (4 places) |
| Connecting Rod | |
| Big end journal inside diameter with assembled liners | 56.866-56.886 mm (2.238819-2.239606 in) |
| Rod bearing-to-journal clearance | 0.066-0.024 mm (0.002598425-0.0009448819 in) |
| Pin bore diameter (rod) | 22.024-22.012 mm (0.867084-0.8666116 in) |
| Rod length (centerline bore-to-bore) | 150.7 mm (5.933071 in) |
| Alignment bore-to-bore max. twist | ± 0.05 mm (0.001968498 in) |
| Alignment bore-to-bore max. bend | ± 0.038 mm (0.001496058 in) |
| Side play (as assembled to crank)-standard play | 0.015-0.45 mm (0.0005905512-0.01771654 in) |
| Side play (as assembled to crank)-max. play | 0.50 mm (0.01968504 in) |
| Cylinder bore and piston | |
| Piston-to-bore clearance mm @ 43 mm from top | -0.005- (+)0.025 mm (0.0001968504-0.000984252 in) |
| Pin diameter | 22.0010-22.0030 mm (0.8661811-0.8662598 in) |
| Piston pin-length | 61.601-62.030 mm (2.425236-2.442126 in) |
| Pin-to-piston clearance | 0.0045 mm (0.0001771654 in) interference to 0.0015 mm |
| Pin-to-rod clearance | 0.009-0.023 mm (0.0003543307-0.0009055118 in) |
| Ring groove width-top | 1.23-1.25 mm (0.0484252-0.0492126 in) |
| Ring groove width-intermediate | 1.520-1.540 mm (0.05984252-0.06062992 in) |
| Ring groove width-oil control | 3.03-3.055 mm (0.1192913-0.1202756 in) |
| Piston ring-to-groove clearance top | 0.030-0.070 mm (0.001181102-0.002755906 in) |
| Piston ring-to-groove clearance-intermediate | 0.020-0.060 mm (0.0007874016-0.002362205 in) |
| Piston ring-to-groove clearance-oil control | 0.030-0.070 mm (0.001181102-0.002755906 in) |
| Piston ring gap-top | 0.15-0.30 mm (0.005905512-0.01181102 in) |
| Piston ring gap-intermediate | 0.15-0.30 mm (0.005905512-0.01181102 in) |
| Piston ring gap-oil control | 0.15-0.30 mm (0.005905512-0.01181102 in) |
| P in bore diameter (piston) | 22.0065-22.0110 mm (0.8663976-0.8665748 in) |
| P in diameter | 21.995-21.997 mm (0.8659449-0.8660236 in) |
| Piston p in-length | 61.870-62.120 mm (2.435827-2.445669 in) |
| P in-to-piston clearance | 0.0095-0.016 mm (0.0003740157-0.0006299213 in) |
| P in-to-rod clearance | 0.016-0.038 mm (0.0006299213-0.001496063 in) |
| ring groove width-top | 1.520-1.540 mm (0.05984252-0.06062992 in) |
| ring groove width-intermediate | 1.520-1.540 mm (0.05984252-0.06062992 in) |
| ring groove width-oil control | 3.03-3.055 mm (0.1192913-0.1202756 in) |
| Piston ring-to-groove clearance-top | 0.020-0.060 mm (0.0007874016-0.002362205 in) |
| Piston ring-to-groove clearance- intermediate | 0.020-0.060 mm (0.0007874016-0.002362205 in) |
| Piston ring-to-groove clearance-oil control | 0.030-0.070 mm (0.001181102-0.002755906 in) |
| Piston ring gap-top | 0.15-0.30 mm (0.005905512-0.01181102 in) |
| Piston ring gap-intermediate | 0.15-0.30 mm (0.005905512-0.01181102 in) |
| Piston ring gap-oil control | 0.15-0.30 mm (0.005905512-0.011801102 in) |
| Crankshaft | |
| Main bearing journal diameter | 67.483-67.503 mm (2.656803-2.65759 in) |
| Main bearing bore diameter | 72.40-72.424 mm (2.850394-2.851339 in) |
| Main bearing journal diameter: maximum-out-of-round | 0.0075 mm (0.0002952747 in) between cross sections |
| Main bearing journal diameter: maximum taper (straightness) | 0.004 mm (0.0001574798 in) |
| Runout: FIM of center journals when located on front and rear journal | 0.05 mm (0.001968498 in) 3 places |
| Crankshaft journal to ma in bearing clearance | 0.066-0.024 mm (0.02598425-0.000944879 in) |
| Connecting rod journal diameter | 53.003-52.983 mm (2.086726-2.085939 in) |
| Connecting rod journal diameter: maximum-out-of-round | 0.0075 mm (0.0002952747 in) between cross sections |
| Connecting rod journal diameter: maximum taper (straightness) | 0.004 mm (0.0001574798 in) |
| Crankshaft end play | 0.301-0.130 mm (0.01185039-0.00511811 in) |
| Cylinder Head/Valve Train | |
| Combustion chamber volume | 53 ±. 5 cc (3.234258 ± 0.03051187 ci) |
| Valve seat width- intake | 2.1-1.9 mm (0.08267692-0.07480292 in) |
| Valve seat width-exhaust | 2.1-1.9 mm (0.08267692-0.07480292 in) |
| Valve seat angle | 45.00 degrees |
| Valve seat runout (TIR) | 0.025 mm (0.000984249 in) |
| Valve stem guide clearance-intake | 0.069-0.020 mm (0.002716527-0.0007873992 in) |
| Valve stem guide clearance-exhaust | 0.095-0.046 mm (0.003740146-0.001811024 in) |
| Valve head diameter- intake | 44.5 mm (1.751969 in) |
| Valve head diameter-exhaust | 34.0 mm (1.338583 in) |
| Valve face runout limit | 0.05 mm (0.001968498 |
| Valve face angle | 45.5 degrees |
| Valve stem diameter- intake | 6.995-6.975 mm (0.2753929-0.2746055 in) |
| Valve stem diameter-exhaust | 6.970-6.949 mm (0.2744086-0.2735819 in) |
| Valve spring compression pressure- intake | 633.3-701.3 N @ 28.02 mm (1.103146 in) |
| Valve spring compression pressure-exhaust | 633.3-701.3 N @ 28.02 mm (1.103146 in) |
| Valve spring free length-intake | 50.2 mm (1.976372 in) |
| Valve spring free length-exhaust | 50.2 mm (1.976372 in) |
| Valve spring installed pressure-intake | 272.1-306.1 N @ 40.0 mm (1.574803 in) |
| Valve spring installed pressure-exhaust | 272.1-306.1 N @ 40.0 mm (1.574803 in) |
| Valve spring installed pressure service limit-intake | 274.6 N @ 40.01 mm (1.575192 in) |
| Valve spring installed pressure service limit-exhaust | 274.6 N @ 40-01 mm (1.575192 in) |
| Valve spring out-of-square limit- intake | 2.5 degrees |
| Valve spring out-of-square limit-exhaust | 2.5 degrees |
| Valve guide inside diameter | 7.044-7.015 mm (0.277322-0.2761803 in) |
| Rocker arm ratio | 1.75:1 |
| Lash adjuster-diameter | 15.988-16.00 mm (0.6294488-0.6299213 in) |
| Lash adjuster-clearance to bore | 0.018-0.069 mm (0.0007086614-0.002716535 in) |
| Lash adjuster-service limit | 0.016 mm (0.0006299213 in) |
| Lash adjuster-hydraulic leakdown rate | 5-25 seconds |
| Lash adjuster-collapsed lash adjuster gap desired | 0.45-0.85 mm (0.01771654-0.03346457 in) |