Engine - 2.3L: Specifications — Ford Ranger I (1998-2006)

GENERAL SPECIFICATIONS

Item		Specification
Metal Surface Cleaner F4AZ -19A536-RA		WSE-M5B392-A
Silicone Gasket & Sealant F7AZ -19554-EA		WSE-M4G323-A4
Super Premium SAE 5W-20Engine Oil XO-5W20-QSP		WSS-M2C153-H
MERPOL(R) O-Ring Seal Lubricant		ESE-M99B144-B
Displacement		2.3L
No. Of Cylinders		4
Bore/Stroke		87.5/94.0
Firing Order		1-3-4-2
Oil Pressure (Hot @ 2000 RPM)		29-39 psi 200-268 kPa
Oil Capacity		3.5 qts. + 0.5 qt. With Filter
Cylinder Block
Cylinder Bore Diameter		87.5 -87.53 mm (3.444-3.446 in.)
Out Of Round		0.008 mm (0.0003 in.)
Main Bearing Bore Diameter		57.020-57.038 mm (2.244-2.245 in.)
Head Face Flatness		0.1 mm/General 0.05 mm/200 x 200 (0.003 in./General) (0.0019 in./7.87 x 7.87)
Piston
Diameter (1)		87.5 -87.51 mm (3.444-3.445 in.)
Diameter (2)		87.51-87.52 mm (3.4452-3.4456 in.)
Diameter (3)		87.52-87.53 mm (3.445-3.446 in.)
Piston To Bore Clearance		0.025-0.045 mm (0.0009-0.0017 in.)
Ring Groove Width - Top		1.203-1.205 mm (0.0473-0.0474 in.)
Ring Groove Width - 2nd		1.17-1.19 mm (0.0460-0.0468 in.)
Ring Groove Width - Oil		2.501-2.503 mm (0.0984-0.0985 in.)
Piston Skirt Coating Thickness		0.008-0.020 mm (0.0003-0.0007 in.)
Piston Pin
Diameter		20.995-21.0 mm (0.8265-0.8267 in.)
Length		59.6 -60.4 mm (2.346-2.377 in.)
Piston To Pin Clearance		0.008-0.016 mm (0.0003-0.0006 in.)
Pin To Rod Clearance		Press Fit
Cylinder Head
Exhaust Valve Lift (in @ Zero Lash)		7.4 mm
Intake Valve Lift (in @ Zero Lash)		7.9 mm
Valve Guide Diameter		5.509-5.539 mm (0.216-0.218 in.)
Valve Seat Width - Intake/Exhaust		0.99-1.84 mm (0.038-0.072 in.)
Valve Seat Angle		45 Degrees
Valve Seat Runout		0.075 mm (0.0029 in.)
Valve Lash Adjustor Bore Diameter		31.00-31.03 mm (1.220-1.221 in.)
Cam Bore Diameter		25.015-25.040 mm (0.984-0.985 in.)
Valve
Valve Head Diameter - Intake		34.85-35.15 mm (1.372-1.383 in.)
Valve Head Diameter - Exhaust		29.85-30.15 mm (1.175-1.187 in.)
Valve Stem Diameter - Intake		5.470-5.485 mm (0.2153-0.2159 in.)
Valve Stem Diameter - Exhaust		5.465-5.480 mm (0.2151-0.2157 in.)
Valve Stem To Guide Clearance - Intake		0.0027 mm (0.00010 in.)
Valve Stem To Guide Clearance - Exhaust		0.0029 mm (0.00011 in.)
Valve Face Runout		0.05 mm (0.0019 in.)
Valve Face Angle		45 Degrees
Valve Spring - Compression Pressure
Intake & Exhaust (Installed)		38.667 lbs.
Intake (Valve Open) 8.9 mm (0.35 in) Of Lift		97.032 lbs.
Exhaust (valve Open) 7.4 mm Of Lift		93.338 lbs.
Free Length		44.92 mm (1.768 in.)
Assembled Height		37.9 mm (1.492 in.)
Crankshaft
Main Bearing Journal Diameter		51.980-52.000 mm (2.046-2.047 in.)
Production Repair		51.730-51.750 mm (2.036-2.037 in.)
Main Bearing Clearance		0.019-0.035 mm (0.0007-0.0013 in.)
Connecting Rod Journal Diameter		49.980-50.000 mm (1.967-1.968 in.)
Production Repair		49.730-49.750 mm (1.957-1.958 in.)
End Play		0.22-0.43 mm (0.008-0.016 in.)
Rings
Width - Top		1.17-1.185 mm (0.0460-0.0466 in.)
Width - 2nd		1.197-1.199 mm (0.0471-0.0472 in.)
Width - Oil		2.38-2.45 mm (0.093-0.096 in.)
Ring Gap (In Bore) - Top		0.16-0.31 mm (0.006-0.012 in.)
Ring Gap (In Bore) - 2nd		0.33-0.48 mm (0.012-0.018 in.)
Ring Gap (In Bore) - Oil		0.2 -0.7 mm (0.007-0.027 in.)
Valve Tappet
Diameter		30.97-30.98 mm (1.2192-1.2196 in.)
Tappet To Valve Clearance - Intake		0.22- 0.28 mm (0.008-0.011 in.)
Tappet To Valve Clearance - Exhaust		0.27-0.33 mm (0.010-0.013 in.)
Tappet To Bore Clearance		0.02-0.06 mm (0.0007-0.0023 in.)
Camshaft
Lobe Lift - Intake		8.24999 mm (0.324 in.)
Lobe Lift - Exhaust		7.80007 mm (0.307 in.)
Runout (1)		0.03 mm (0.001 in.)
Thrust Clearance		0.09-0.24 mm (0.003-0.009 in.)
Journal Diameter		24.96-24.98 mm (0.982-0.983 in.)
Journal To Bore Clearance		0.035-0.080 mm (0.001-0.003 in.)
Connecting Rod
Bearing Clearance		0.027-0.052 (0.001-0.002 in.)
Bearing Thickness		1.496-1.520 mm (0.058-0.059 in.)
Crank Bore Diameter		53.025-53.045 mm (2.087-2.088 in.)
Pin Bore Diameter		20.965-20.985 mm (0.825-0.826 in.)
Length (Center To Center)		154.8 mm (6.094 in.)
Side Clearance		1.95-3.05 mm (0.076-0.120 in.)
Axial Clearance		0.14-0.36 mm (0.005-0.014 in.)
(1) No. 3 Journal - Supported by No. 1 and No. 5 Journals.

(1)	No. 3 Journal - Supported by No. 1 and No. 5 Journals.

ENGINE - 2.3L GENERAL SPECIFICATIONS

All dimensions are in mm unless noted.

TORQUE SPECIFICATIONS

Description	Nm	Lb-ft	Lb -in
Camshaft Bearing Caps (1)
Water Outlet Connection Bolts	10		89
Oil Pan Bolts (1)
Oil Pump-To-Engine Block Bolts	25	18
Cylinder Head Bolts (1)
Intake Manifold Bolts	18	13
Flywheel Bolt (1)
Crankshaft Pulley Bolt (1)
Crankshaft Position Sensor	7		62
Crankshaft Oil Seal Retainer (1)
A/C Compressor Mounting Bolts	25	18
Fan Shroud Mounting Bolts	7		62
Oil Pump Sprocket Bolt	25	18
Transmission Access Cover Bolt	10	89
Knock Sensor	20	15
Timing Peg Plug	20	15
Engine Mounting Nuts	102	75
Engine-To-Transmission Bolts	48	35
Torque Converter-To-Flywheel Nuts	35	26
Starter Motor Mounting Bolts	25	18
P/S Press Line Tube Nut	20	15
PCM Wiring Connector	6		53
Water Pump Bolts	10		89
Engine Front Cover Bolts (1)
Camshaft Sprocket Bolt	65	48
Valve Cover Bolts	10		89
Engine Lifting Eye Bolts	45	33
EGR Valve Assembly Bolts	25	18
Generator Mounting Bolts	25	18
Water Thermostat Assembly Bolts	10		89
Oil Pump Screen & Cover Assembly	10		89
Exhaust Manifold Studs	17	13
Exhaust Manifold-To-Cylinder Head Nuts	54	40
Water Pump Pulley Bolts	25	18
Generator A/C Mounting Bracket Bolts	48	35
Power Steering Pump Mounting Bolts	25	18
Engine Ground Cable-To-Cylinder Head Bolt	10		89
EGR Tube Bracket Bolt	10		89
EGR Outlet Tube At Intake Manifold	20	15
Oil Level Indicator Tube Bolt	10		89
Engine Wire Harness Bulkhead Connector Bolt	10		89
Engine Body Ground Bolt	10		89
Engine Harness Ground PCM Connector Nut	10		89
Accelerator Control Splash Shield	8		72
Egr Outlet Tube Assembly At Cylinder Head	55	41
Oil Pressure Sensor	15	11
A/C Manifold Tube Bolt	20	15
Exhaust Manifold-To-Exhaust Inlet Pipe Nuts	40	30
Transmission Lines Bracket Bolt	28	21
Oil Drain Plug	28	21
Oil Pump Chain Tensioner Bolts	10		89
Oil Pump Chain Guide Bolts	10		89
Timing Chain Guide Bolts	10		89
Timing Chain Tensioner Bolts	10		89
Crankcase Ventilation Cover Assembly Bolts	10		89
Oil Filter Adaptor Bolts	25	18
Water Outlet (Front) Connector Bolts	25	18
(1) See procedure for specification.

(1)	See procedure for specification.

TORQUE SPECIFICATIONS

The 2.3L engine is a four valve-per-cylinder, dual overhead camshaft engine. The engine uses a distributorless ignition system. The cylinder block is made of aluminum and the bearing caps are integrated into the ladder assembly. An aluminum oil pan bolts to the bottom of the lower cylinder block and to the transmission to provide greater strength. The camshafts are mounted in the cylinder heads and act against valve tappets to open and close the valves. The camshafts are driven off the front of the cylinder head by one timing chain. The chain is driven by a sprocket that is located on the crankshaft. The piston assembly is an aluminum piston with a cast iron connecting rod. The oil pump is driven by the crankshaft via a dedicated chain that is driven by the same sprocket that drives the timing chain.