Section 23 (Engine Mechanical - 6.8L): Specifications
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty and 2013 Ford F-450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
MATERIAL
| Item | Specification | Fill Capacity |
|---|---|---|
| Motorcraft® Metal Surface Prep ZC-31-A |
- | - |
| Motorcraft® Specialty Orange Engine Coolant VC-3-B (US); CVC-3-B (Canada) |
WSS-M97B44-D | - |
| Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil (Canada) XO-5W20-QSP (US); CXO-5W20-LSP12 (Canada) |
WSS-M2C945-A | 6.6L (7.0 qt) with filter |
| Silicone Brake Caliper Grease and Dielectric Compound XG-3-A |
ESE-M1C171-A | - |
| Silicone Gasket and Sealant TA-30 |
WSE-M4G323-A4 | - |
| Motorcraft® Silicone Gasket Remover ZC-30 |
- | - |
GENERAL SPECIFICATIONS
| Item | Specification | ||
|---|---|---|---|
| Engine | |||
| Bore/Stroke | 90.215/105.8 mm (3.5518/4.1654 in) | ||
| Displacement (CID) | 6.8L (415) | ||
| Engine weight (without accessory drive components and with flexplate) | 286 kg (630 lb) | ||
| Engine weight (without accessory drive components and with flywheel) | 292 kg (644 lb) | ||
| Fire order | 1-6-5-10-2-7-3-8-4-9 | ||
| Spark plug | HJFS-24FP | ||
| No. of Cylinders | 10 | ||
| Oil pressure 93.33°C (200°F) @ 2, 000 rpm | 276-517 kPa (40-75 psi) | ||
| Cylinder Head and Valve Train | |||
| Combustion chamber volume | 48.1-51.1 cc (2.92-3.12 cu in) | ||
| Roller follower ratio | - | ||
| Valve arrangement (front to rear) - LH | I-E-I-I-E-I-I-E-I-I-E-I-I-E-I | ||
| Valve arrangement (front to rear) - RH | I-E-I-I-E-I-I-E-I-I-E-I-I-E-I | ||
| Valve face runout | 0.05 mm (0.002 in) | ||
| Valve face angle | 45.5 degrees | ||
| Valve guide bore diameter | 6.015-6.044 mm (0.237-0.238 in) | ||
| Valve head diameter - intake | 33.62-33.98 mm (1.324-1.338 in) | ||
| Valve head diameter - exhaust | 37.32-37.68 mm (1.469-1.483 in) | ||
| Valve seat width - intake | 1.2-1.4 mm (0.047-0.055 in) | ||
| Valve seat width - exhaust | 1.4-1.6 mm (0.055-0.063 in) | ||
| Valve seat angle | 44.5-45.0 degrees | ||
| Valve spring free length | 56.5 mm (2.22 in) | ||
| Valve spring compression pressure | 760 N (79 lb) ± 17.5 N (171 lb) @ 42.04 mm (1.66 in) | ||
| Valve spring installed height | 42.04 mm (1.66 in) | ||
| Valve spring installed pressure | 350 N (79 lb) ± 17.5 N (4 lb) @ 42.04 mm (1.66 in) | ||
| Valve stem diameter - intake | 5.975-5.995 mm (0.235-0.236 in) | ||
| Valve stem diameter - exhaust | 5.95-5.97 mm (0.234-0.235 in) | ||
| Valve stem-to-guide clearance - intake | 0.020-0.069 mm (0.001-0.003 in) | ||
| Valve stem-to-guide clearance - exhaust | 0.045-0.094 mm (0.002-0.004 in) | ||
| Head gasket surface flatness | 0.025 mm (0.001 in) in any 25 mm (1 in) x 25 mm (1 in) area; 0.05 mm (0.002 in) in any 150 mm (6 in) x 150 mm (6 in) area; 0.1 mm (0.004 in) overall | ||
| Hydraulic Lash Adjuster | |||
| Clearance-to-bore | - | ||
| Collapsed lash adjuster gap | - | ||
| Diameter | - | ||
| Hydraulic leakdown rate | - | ||
| Service limit | - | ||
| Camshaft | |||
| Allowable lobe lift loss | 0.127 mm (0.005 in) | ||
| Camshaft journal bore inside diameter | 28.657-28.682 mm (1.128-1.129 in) | ||
| Camshaft journal-to-bearing clearance | 0.024-0.075 mm (0.0009-0.0029 in) | ||
| End play | 0.027-0.190 mm (0.001-0.007 in) | ||
| Journal diameter | 28.607-28.633 mm (1.126-1.127 in) | ||
| Lobe lift - intake | 5.475 mm (0.216 in) | ||
| Lobe lift - exhaust | 5.520 mm (0.217 in) | ||
| Runout | 0.09 mm (0.004 in) | ||
| Theoretical valve lift @ 0 lash - intake | 11.1 mm (0.437 in) | ||
| Theoretical valve lift @ 0 lash - exhaust | 11.0 mm (0.433 in) | ||
| Cylinder Block | |||
| Cylinder bore diameter - grade 1 | 90.200-90.210 mm (3.5512-3.5516 in) | ||
| Cylinder bore diameter - grade 2 | 90.210-90.220 mm (3.5516-3.5520 in) | ||
| Cylinder bore diameter - grade 3 | 90.220-90.230 mm (3.5520-3.5524 in) | ||
| Cylinder bore maximum taper | 0.013 mm (0.0005 in) | ||
| Cylinder bore maximum out-of-round | 0.010 mm (0.0004 in) | ||
| Main bearing bore inside diameter | 72.400-72.424 mm (2.850-2.851 in) | ||
| Head gasket surface flatness | 0.03 mm (0.001 in) in any 40 mm (1.5 in) x 40 mm (1.5 in) area; 0.05 mm (0.002 in) in any 150 mm (6 in) x 150 mm (6 in) area; 0.15 mm (0.006 in) overall | ||
| Crankshaft | |||
| Connecting rod journal diameter | 52.983-53.003 mm (2.0859-2.0867 in) | ||
| Connecting rod journal maximum taper | 0.004 mm (0.0002 in) | ||
| Connecting rod journal maximum out-of-round | 0.0075 mm (0.0003 in) between cross sections | ||
| Crankshaft maximum end play | 0.075-0.377 mm (0.0030-0.0148 in) | ||
| Main bearing journal diameter | 67.481-67.505 mm (2.6568-2.6576 in) | ||
| Main bearing journal maximum out-of-round | 0.0075 mm (0.0003 in) between cross sections | ||
| Main bearing journal maximum taper | 0.004 mm (0.0002 in) | ||
| Main bearing journal-to-cylinder block clearance | 0.024-0.048 mm (0.0009-0.0019 in) | ||
| Piston and Connecting Rod | |||
| Connecting rod bearing bore diameter (with assembled liners) | 53.027-53.049 mm (2.0877-2.0885 in) | ||
| Connecting rod bearing-to-crankshaft clearance | 0.024-0.066 mm (0.0009-0.0025 in) | ||
| Connecting rod length (center-to-center) | 169.1 mm (6.6575 in) | ||
| Connecting rod maximum allowed bend | ± 0.038 mm (0.0015 in) | ||
| Connecting rod-to-pin clearance | 0.009-0.0235 mm (0.0004-0.0093 in) | ||
| Connecting rod pin bore diameter | 22.012-22.024 mm (0.8666-0.8671 in) | ||
| Connecting rod maximum allowed twist (1) | ± 0.05 mm (0.0020 in) | ||
| Connecting rod side clearance | 0.125-0.475 mm (0.0049-0.0187 in) | ||
| Piston-to-cylinder bore clearance (at grade size) | 0.025-0.045 mm (0.0010-0.0018 in) | ||
| Piston diameter - grade 1 (at right angle to pin bore) | 90.165-90.175 mm (3.5498-3.5502 in) | ||
| Piston diameter - grade 2 (at right angle to pin bore) | 90.175-90.185 mm (3.5502-3.5506 in) | ||
| Piston diameter - grade 3 (at right angle to pin bore) | 90.185-90.195 mm (3.5506-3.5510 in) | ||
| Piston pin bore diameter | 22.008-22.014 mm (0.8665-0.8667 in) | ||
| Piston pin diameter | 22.0005-22.0030 mm (0.8662-0.8663 in) | ||
| Piston pin length | 61.8 mm (2.433 in) | ||
| Piston pin-to-piston fit | 0.005-0.013 mm (0.0002-0.0005 in) | ||
| Piston ring end gap - top | 0.15-0.30 mm (0.0059-0.0118 in) | ||
| Piston ring end gap - intermediate | 0.25-0.50 mm (0.0098-0.0196 in) | ||
| Piston ring end gap - oil control | 0.15-0.65 mm (0.0059-0.0256 in) | ||
| Piston ring groove width - top | 1.502-1.505 mm (0.0591-0.0592 in) | ||
| Piston ring groove width - intermediate | 1.52-1.54 mm (0.0598-0.0606 in) | ||
| Piston ring groove width - oil control | 3.030-3.050 mm (0.1193-0.1201 in) | ||
| Piston ring width | 1.46-1.49 mm (0.0575-0.0587 in) | ||
| Piston ring-to-groove clearance - top | 0.030-0.050 mm (0.0012-0.0020 in) | ||
| Piston ring-to-groove clearance - intermediate | 0.030-0.080 mm (0.0012-0.0031 in) | ||
| Balance Shaft System | |||
| Alignment | |||
| Balance shaft end play | 0.04 - 0.18 mm (0.0016-0.00709 in) | ||
| Balance shaft journal diameter | 26.936-26.962 mm (1.0605-1.0615 in) | ||
| Bore-to-bore max. bend | ± 0.038 mm (± 0.00149 in) | ||
| Bore-to-bore max. twist | ± 0.05 mm (± 0.00196 in) | ||
| Clearance - balance shaft journal-to-cylinder head | 0.025-0.076 mm (0.0010-0.0030 in) | ||
| Cylinder head balance shaft journal diameter | 26.987-27.012 mm (1.0625-1.0635 in) | ||
| Gear backlash | 0.0076 - 0.1295 mm (0.00030-0.00510 in) | ||
| Max. play | 0.670 mm (0.264 in) | ||
| Rod length (centerline bore-to-bore) | 169.1 mm (6.6574 in) | ||
| Side play (as assembled to crank) | |||
| Standard play | 0.26 ± 0.410 mm (0.01024 ± 0.01614 in) | ||
|
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TORQUE SPECIFICATIONS
| Description | Nm | lb-ft | lb-in | ||
|---|---|---|---|---|---|
| A/C compressor bolts | 25 | 18 | - | ||
| A/C compressor nuts | 20 | - | 177 | ||
| Accessory drive belt idler pulley bolt | 25 | 18 | - | ||
| Accessory drive belt tensioner bolt | 25 | 18 | - | ||
| Balance shaft bearing cap bolts (1) | - | - | - | ||
| Camshaft bearing cap bolts(1) | - | - | - | ||
| Camshaft Position (CMP) sensor bolt | 10 | - | 89 | ||
| Camshaft sprocket bolt(1) | - | - | - | ||
| Connecting rod bolts(1) | - | - | - | ||
| Coolant pump bolts | 25 | 18 | - | ||
| Coolant pump pulley bolts | 25 | 18 | - | ||
| Coolant tube stud bolt | 10 | - | 89 | ||
| Cooling fan clutch hub-to-cooalnt pump nut | 133 | 98 | - | ||
| Crankshaft pulley bolt(1) | - | - | - | ||
| Crankshaft main bearing bolts (cross-mounted)(1) | - | - | - | ||
| Crankshaft main bearing bolts (vertical)(1) | - | - | - | ||
| Crankshaft Position (CKP) sensor bolt | 10 | - | 89 | ||
| Crankshaft rear seal retainer plate bolts(1) | - | - | - | ||
| Cylinder block drain plug | 24 | 18 | - | ||
| Cylinder head bolts(1) | - | - | - | ||
| Cylinder Head Temperature (CHT) | 10 | - | 89 | ||
| Engine coolant crossover assembly bolts | 10 | - | 89 | ||
| Engine front cover bolts(1) | - | - | - | ||
| Engine Oil Pressure (EOP) switch | 18 | - | 159 | ||
| Engine support insulator bracket bolts(1) | - | - | - | ||
| Engine support insulator-to-crossmember nuts - RH(1) | - | - | - | ||
| Engine support insulator-to-crossmember nuts - LH (1) | - | - | - | ||
| Engine support insulator through bolt (1) | - | - | - | ||
| Engine support insulator studs (1) | - | - | - | ||
| Engine wiring harness ground strap nut | 10 | - | 89 | ||
| Evaporative Emission (EVAP) canister purge valve bolt | 10 | - | 89 | ||
| Exhaust manifold flange nuts | 40 | 30 | - | ||
| Exhaust manifold heat shield bolts | 14 | - | 124 | ||
| Exhaust manifold nuts(1) | - | - | - | ||
| Exhaust manifold-to-catalytic converter nuts | 40 | 30 | - | ||
| Exhaust manifold-to-cylinder head studs | 12 | - | 106 | ||
| Exhaust Y-pipe flange nuts | 40 | 30 | - | ||
| Flexplate bolts(1) | - | - | - | ||
| Flexplate inspection cover bolts | 34 | 25 | - | ||
| Front oil level indicator tube bolt | 25 | 18 | - | ||
| Fuel rail bolts | 10 | - | 89 | ||
| Ground strap stud bolt | 10 | - | 89 | ||
| Ignition coil bolt | 6 | - | 53 | ||
| Intake manifold bolts(1) | - | - | - | ||
| Intake Manifold Runner Control (IMRC) | 10 | - | 89 | ||
| Knock Sensor (KS) | 20 | - | 177 | ||
| Oil cooler | 58 | 43 | - | ||
| Oil filter | 16 | - | 142 | ||
| Oil filter adapter bolts | 25 | 18 | - | ||
| Oil filter adapter nut | 48 | 35 | - | ||
| Oil filter adapter stud | 12 | - | 106 | ||
| Oil pan bolts(1) | - | - | - | ||
| Oil pan drain plug | 14 | - | 124 | ||
| Oil pump bolts | 10 | - | 89 | ||
| Oil pump screen and pickup tube spacer | 25 | 18 | - | ||
| Oil pump screen and pickup tube-to-oil pump bolts | 10 | - | 89 | ||
| Oil pump screen and pickup tube-to-spacer bolt | 25 | 18 | - | ||
| Power steering pump bolts | 30 | 22 | - | ||
| Radio ignition interference capacitor nut | 25 | 18 | - | ||
| Rear oil level indicator tube bolt | 10 | - | 89 | ||
| Rear transmission insulator nuts | 115 | 85 | - | ||
| Skid plate bolts | 24 | 18 | - | ||
| Spark plugs | 12 | - | 106 | ||
| Throttle Body (TB) spacer-to-intake manifold bolts(1) | - | - | - | ||
| TB bolts(1) | - | - | - | ||
| Timing chain guide bolts | 10 | - | 89 | ||
| Timing chain hydraulic tensioner bolts | 25 | 18 | - | ||
| Torque converter-to-flexplate nuts | 35 | 26 | - | ||
| Transmission cooler tube support bracket and the starter wiring harness support bracket nut | 25 | 18 | - | ||
| Transmission fluid filler/level indicator tube bolt | 10 | - | 89 | ||
| Transmission mount-to-crossmember nuts | 115 | 85 | - | ||
| Transmission-to-engine bolts | 48 | 35 | - | ||
| Transmission wiring harness support bracket bolt | 10 | - | 89 | ||
| Valve cover bolts(1) | - | - | - | ||
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