Lincoln Navigator: Engine - 3.5L EcoBoost (272kW/370PS) / Specifications

Lincoln Navigator 2018-2025 Workshop Manual / Engine / Engine - 3.5L EcoBoost (272kW/370PS) / Specifications

Engine

Item	Specification
Displacement	3.5L Ecoboost (214 CID)
No. of cylinders	6
Bore/stroke	92.5/86.7 mm (3.641/3.413 in)
Firing order	1-4-2-5-3-6
Spark plug	12405
Spark plug gap	0.75 mm
Compression ratio	10.5:1
Engine weight (without accessory drive components)	430.0 lb ( 195.045 kg)

Lubricants

Item	Specification
Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor Oil (US)	Material: Engine Oil - SAE 5W-30 - Synthetic Blend Motor Oil / XO-5W30-Q1SP (WSS-M2C946-B1)
Motorcraft® SAE 5W-30 Super Premium Motor Oil (Canada)	Material: Engine Oil - SAE 5W-30 - Synthetic Blend Motor Oil / XO-5W30-Q1SP (WSS-M2C946-B1)

Engine Oil Capacity

Item	Specification
Service fill including oil filter	6.0 qt ( 5.7 L)

Oil Pressure

Item	Specification
Oil pressure @ 1,500 rpm with engine at normal operating temperature (High mode)	30.0 psi ( 206.8 kPa)
Oil pressure @ 1,500 rpm with engine at normal operating temperature (Low mode)	20.0 psi ( 138 kPa)

Cylinder Head and Valve Train

Item	Specification
Cylinder head gasket surface flatness	Flat within 0.08 mm (0.003 in) length end to end; flat within 0.05 mm (0.002 in) per area 150 mm (5.91 in) x 150 mm (5.91 in) (or full width); flat within 0.025 mm (0.001 in) per area 25 mm (0.98 in x 25 mm (0.98 in)
Valve guide bore inner diameter	0.237 –0.238 in ( 6.014 –6.044 mm)
Valve stem diameter - intake	0.2360 –0.2353 in ( 5.994 –5.976 mm)
Valve stem diameter - exhaust	0.2343 –0.2350 in ( 5.951 –5.969 mm)
Valve stem-to-guide clearance - intake	0.0017 –0.0027 in ( .044 –.068 mm)
Valve stem-to-guide clearance - exhaust	0.0027 –0.0037 in ( .069 –.093 mm)
Valve head diameter - intake	1.47 in ( 37.4 mm)
Valve head diameter - exhaust	1.24 in ( 31.6 mm)
Valve face runout	0.002 in ( .05 mm)
Valve face angle	45.5 –46 °
Valve seat width - intake	0.051 –0.063 in ( 1.3 –1.6 mm)
Valve seat width - exhaust	0.067 –0.079 in ( 1.7 –2 mm)
Valve seat runout	0.002 in ( .04 mm)
Valve seat angle	44.5 –45.5 °
Valve spring free length (approx.)	2.450 in ( 62.22 mm)
Valve spring compression pressure (N @ spec. length)	699 N @ 33.0 mm (157 lb @ 1.3 in)
Valve spring installed height	43 mm
Valve spring installed height pressure (N @ spec. length)	367 N @ 43.0 mm (83 lb @ 1.7 in)
Valve spring installed pressure — service limit	10% force loss @ specified height

Camshaft

Item	Specification
Theoretical valve lift @ 0 lash - intake	0.394 in ( 10 mm)
Theoretical valve lift @ 0 lash - exhaust	0.394 in ( 10 mm)
Lobe lift - intake	0.211 in ( 5.35 mm)
Lobe lift - exhaust	0.211 in ( 5.37 mm)
Allowable lobe lift loss	0.0024 in ( .062 mm)
Camshaft journal bore inside diameter — 1st journal	1.378 –1.379 in ( 35.008 –35.032 mm)
Camshaft journal bore inside diameter — intermediate journals	1.128 –1.129 in ( 28.657 –28.682 mm)
Camshaft bearing outside diameter — 1st journal	1.376 –1.377 in ( 34.96 –34.98 mm)
Camshaft bearing outside diameter — intermediate journals	1.126 –1.127 in ( 28.607 –28.633 mm)
Camshaft journal-to-bearing clearance, 1st journal — service limit	0.0028 in ( .072 mm)
Camshaft journal-to-bearing clearance, intermediate journals — service limit	0.0030 in ( .075 mm)
Runout	0.0016 in ( .04 mm)
End play - standard	0.0030 –0.0065 in ( .075 –.165 mm)
End play - service limit	0.0075 in ( .19 mm)
CKP (crankshaft position) sensor air gap	0.0197 –0.0787 in ( .5 –2 mm)

Hydraulic Lash Adjuster

Item	Specification
Diameter	0.472 –0.472 in ( 11.989 –12 mm)
Clearance-to-bore	0.000 –0.002 in ( .01 –.051 mm)
Collapsed lash adjuster gap	0.01 –0.02 in ( .24 –.521 mm)
Hydraulic leakdown rate	0.45-3.0 seconds

Cylinder Block

Item	Specification
Block main bore roundness	0.000 in ( .008 mm)
Cylinder bore diameter	3.642 –3.643 in ( 92.5 –92.52 mm)
Cylinder bore roundness	0.0005 in ( .013 mm)
Cylinder bore taper	0.0004 in ( .01 mm)
Main bearing bore inside diameter	2.850 –2.851 in ( 72.4 –72.424 mm)
Head gasket surface flatness	Flat within 0.150 mm (0.005 in) overall 0.050 mm (0.001 in) per 150 mm (5.905 in) x 150 mm (5.905 in) 0.025 mm (0.0009 in) per 25 mm (0.98 in) x 25 mm (0.98 in)

Crankshaft

Item	Specification
Main bearing journal diameter	2.657 in ( 67.5 mm)
Main bearing journal maximum taper	0.1575 in ( .004 m)
Main bearing journal maximum out-of-round	0.0002 in ( .006 mm)
Main bearing journal-to-main bearing clearance	0.0010 –0.0016 in ( .026 –.041 mm)
Connecting rod journal diameter	2.204 –2.205 in ( 55.983 –56.003 mm)
Connecting rod journal maximum taper	0.0002 in ( .004 mm)
Connecting rod journal maximum out-of-round	0.0002 in ( .006 mm)
Crankshaft end play	0.0041 –0.0124 in ( .105 –.315 mm)

Piston and Connecting Rod

Item	Specification
Piston diameter (DN) height from top of piston	1.555 in ( 39.5 mm)
Piston diameter - single grade	3.6396 –3.6402 in ( 92.446 –92.46 mm)
Piston-to-cylinder bore clearance	0.0016 –0.0029 in ( .04 –.074 mm)
Piston ring end gap - compression (top, gauge diameter)	0.0079 –0.0118 in ( .2 –.3 mm)
Piston ring end gap - compression (bottom, gauge diameter)	0.0157 –0.0276 in ( .4 –.7 mm)
Piston ring end gap — oil ring (steel rail, gauge diameter)	0.0059 –0.0177 in ( .15 –.45 mm)
Piston ring groove width - compression (top)	0.0602 –0.0610 in ( 1.53 –1.55 mm)
Piston ring groove width — compression (bottom)	0.0406 –0.0413 in ( 1.03 –1.05 mm)
Piston ring groove width - oil ring	0.0799 –0.0807 in ( 2.03 –2.05 mm)
Piston ring width - upper compression ring	0.0579 –0.0587 in ( 1.47 –1.49 mm)
Piston ring width - lower compression ring	0.0382 –0.0390 in ( .97 –.99 mm)
Piston ring-to-groove clearance (upper and lower compression rings)	0.0016 –0.0031 in ( .04 –.08 mm)
Piston pin bore diameter	0.9057 –0.9058 in ( 23.004 –23.008 mm)
Piston pin diameter	0.9054 –0.9055 in ( 22.997 –23 mm)
Piston pin length	2.3071 –2.3189 in ( 58.6 –58.9 mm)
Piston pin-to-piston fit	0.0002 –0.0004 in ( .004 –.011 mm)
Connecting rod-to-pin clearance - standard	0.0001 –0.0007 in ( .003 –.018 mm)
Connecting rod pin bore diameter	0.9056 –0.9061 in ( 23.003 –23.015 mm)
Connecting rod length (center-to-center)	6.01 in ( 152.68 mm)
Connecting rod maximum allowed bend	0.0015 in ( .038 mm)
Connecting rod maximum allowed twist	0.0020 in ( .05 mm)
Connecting rod bearing bore diameter - single bore grade	2.3570 –2.3576 in ( 59.869 –59.883 mm)
Connecting rod bearing-to-crankshaft clearance	0.0008 –0.0021 in ( .02 –.054 mm)
Connecting rod side clearance (assembled to crank) - service limit	0.0167 in ( .425 mm)

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