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Engine - 3.9L: Specifications Ford Thunderbird XI

Mechanical 10 illustrations

GENERAL SPECIFICATIONS

ItemSpecification
Lubricants and Sealants
SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSPWSS-M2C153-H
Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B)WSS-M97B51-A1
Metal Surface Cleaner F4AZ-19A536-RAWSE-M5B392-A
Silicone Gasket and Sealant F7AZ-19554-EAWSE-M4G323-A4
Engine
Displacement3.9L (238 CID)
Number of cylinders8
Bore86 mm (3.386 in)
Stroke85 mm (3.346 in)
Firing order1-5-4-2-6-3-7-8
Oil pressure minimum at 400 rpm (engine at normal operating temperature)413-482 kPa (61-73 psi)
Engine oil capacity (with filter change)6.5 Liters (6.9 Quarts)
Cylinder Head and Valve Train
Cylinder head gasket surface flatness0.08 mm (0.003 in) total
Combustion chamber volume48.73 ± 2.068-2.018 cc
Valve stem diameter - intake4.9763-4.978 mm (0.196-0.197 in)
Valve stem diameter - exhaust4.955-4.970 mm (0.195-0.196 in)
Valve stem-to-guide clearance - intake0.022 mm (0.001 in)
Valve stem-to-guide clearance - exhaust0.030 mm (0.001 in)
Valve head diameter - intake34.9 mm (1.728 in)
Valve head diameter - exhaust30.9 mm (1.216 in)
Valve face runout0.04 mm (0.002 in)
Valve face angle45 degrees

General Specifications (1 Of 2)

ItemSpecification
Valve seat width - intake1 mm (0.0393 in)
Valve seat width - exhaust2 mm (0.0787 in)
Valve seat angle - intake14 degrees
Valve seat angle - exhaust13 degrees
Camshaft
Lobe lift - intake9 mm (0.354 in)
Lobe lift - exhaust8.4 mm (0.330 in)
End play0.100-0.125 mm (0.0003-0.007 in)
Accessory Drive Belt
Drive belt6 ribs

General Specifications (2 Of 2)

Torque Specifications

DescriptionN.mLb-ftLb-in
Intake Manifold Bolts2518
Throttle Body Bolts980
Thermostat Housing Bolts980
EVR Solenoid Bolts653
EGR Valve Bolts2518
EGR Valve To Exhaust Manifold Tube Nuts4030
Engine Compartment Brace Bolts980
Valve Cover Bolts1089
Fuel Line Bracket Bolt1197
Oil Level Indicator Tube Nut653
Power Steering Pump Reservoir Upper Bolt653
Power Steering Pump Reservoir Lower Bolt12106
Wiring Harness Bolts1197
Ignition Coil Bolts544
Coil Cover Bolts544
Evaporative Emission Purge Valve Bracket Nuts1089
Wiring Harness Nuts1197
Cylinder Head Bolts(1)
Fresh Air Box Nuts1089
Fresh Air Duct Nuts1089
Wiring Harness Bracket Bolts544
Hydraulic Cooling Fan Reservoir Upper Bolt653
Hydraulic Cooling Fan Reservoir Lower Bolt12106
EGR Tube Bracket Bolts1197
Crankshaft Pulley Bolt(1)
Idler Pulley Bolts2518
Engine Front Cover Bolts(1)
Power Steering Pump Bracket Bolts2518
Hydraulic Cooling Fan Pump Bracket Bolts2518
Power Steering Pressure Hose Nuts2015
Lower Radiator Hose Bolts1089
Water Pump Bolts(1)
Water Pump Pulley Bolts(1)
Timing Chain Tensioner Bolts118
Camshaft Sprocket Bolts(1)
Timing Chain Guide Bolts1197
Timing Chain Tensioner Arm Bolts118
Crankshaft Position Sensor Bolt1089
Camshaft Bearing Cap Bolts(1)
Exhaust Manifold Bolts2518
Exhaust Manifold To Catalytic Converter Nuts4030
Camshaft Position Sensor Bolt1197
Cylinder Head Temperature Sensor118
Power Steering Pump Bolts2518
Oil Filter(2)
Oil Filter Adapter Bolts2518
Oil Pan Bolts(1)
Oil Pan Drain Plug2317
Oil Pump Bolts129
Oil Pump Screen Cover & Tube Bolts129
Flexplate Spacer Nuts3828
Engine Mount To Frame Bolts4030
Engine Mount Bracket To Cylinder Block Bolts4634
Upper To Lower Cylinder Block Bolts(1)
Connecting Rod Cap Bolts(1)
Oil Sump Bolts(1)
Knock Sensor Bolts2015
Oil Pan Bolts(1)
Heated Oxygen Sensor Bracket Bolts653
Generator Bolts & Nut(1)
Transmission To Engine Bolts4735
Transmission Wiring Harness Nuts1089
Power Steering Hose Bracket Bolt1089
Transmission Cooler Tube Nuts3526
Cowl Panel Support Bracket Bolts980
A/C Compressor Bracket Bolts2518
A/C Compressor Bolts2518
Water Crossover Bolts118
Oil Cooler Assembly2518
A/C High Pressure Hose871
Starter Bracket Nut1089
A/C Manifold Nut2115
Subframe Bolts10376
Steering Coupling Bolt3526
Cooling Fan Hose Bracket Bolt1089
Lower Strut Mount Bolts175129
Upper Ball Joint Nuts9066
Stabilizer Bar Link Nuts5541
Starter Motor Wiring Harness Nut653
Oil Cooler Bolts5843
Shift Cable Bracket Bolt1089
Heater Hose Bracket Bolt1089
Ground Strap Bolt1089
Radiator Support Bracket Bolts1089
Cylinder Block Flanged Plug20 + 10 Degrees15 + 10 Degrees
Water Jacket Plug2518
M30 Cylinder Block Plugs5037
EGR Heat Shield Bolts1089
EGR Valve Adapter Bolts1089
Radio Interference Capacitor Nuts653
Inlet Tube Support Bracket Bolts118
Drive Belt Tensioner Bolt5037
(1) Refer to procedure for staged torque. (2) Install the oil filter until the seal makes contact. Tighten an additional 270 degrees.
(1)Refer to procedure for staged torque.
(2)Install the oil filter until the seal makes contact. Tighten an additional 270 degrees.

TORQUE SPECIFICATIONS

Scheme 33

Scheme 33: Cylinder Head & Valve Train
Scheme 33: Cylinder Head & Valve Train

Scheme 34

Scheme 34
Scheme 34

Scheme 35

Scheme 35: Lower End
Scheme 35: Lower End

Scheme 36

Scheme 36
Scheme 36

Scheme 37

Scheme 37
Scheme 37

Scheme 38

Scheme 38: Lower End Exterior Dress
Scheme 38: Lower End Exterior Dress

Scheme 39

Scheme 39
Scheme 39

Scheme 40

Scheme 40
Scheme 40

Scheme 41

Scheme 41: Upper End Exterior Dress
Scheme 41: Upper End Exterior Dress

Scheme 42

Scheme 42
Scheme 42

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