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4.0L OHV SPEC SHEET
General Specifications
Item Specification
4.0L (Push Rod)
Displacement liters 4.0L (244)
Number of cylinders 6
Bore mm (inch) 100.4 (3.9527)
Stroke mm (inch) 84.4 (3.31)
Firing order 1-4-2-5-3-6
Minimum oil pressure at 2000 RPM (engine at normal operating temperature) kPa (psi) 130 (15)
Cylinder Head and Valve Train
Combustion chamber volume (cc) 46.34-48.34
Valve guide bore diameter 8.062-8.087 (0.317-0.318)
Valve arrangement front to rear
LH=I-E-I-E-I-E
RH=E-I-E-I-E-I
Head gasket surface flatness mm (inch) a
Head gasket surface finish rms 60-150
Valve Seat
Width mm (inch) 1.697-2.263
(0.067-0.089)
Angle Degrees 45°
Runout TIR maximum mm (inch) 0.038 (0.0014)
Valves
Intake exhaust mm (inch)
8.025-8.043
(0.3159-0.3167)
7.999-8.017
(0.3149-0.3156)
Valve stem to guide clearance exhaust mm (inch)
0.021-0.064
(0.0008-0.0025)
Valve stem to guide clearance intake mm (inch)
0.046-0.089
(0.0018-0.0035)
Head diameter intake mm (in) 4.35 (1.71)
Head diameter exhaust mm (in) 34.5 (1.36)
Valve face angle degrees 44°
Valve face runout limit mm (inch) 0.051 (0.002)
Valve Rocker Arm Shaft, Push Rods and Tappets
Push rod runout TIR maximum mm (inch) 0.508 (0.020)
Tappet diameter mm (inch) 22.205-22.238
(0.8742-0.8755)
Tappet to bore clearance mm (inch) 0.013-0.056
(0.0005-0.0022)
Repair limit mm (inch) 0.127 (0.005)
Hydraulic lifter leakdown rate for 1/16 inch travel 10-50 seconds
Valve Springs
Intake valve spring free length mm (inch) 48.514 (1.91)
Exhaust valve spring free length mm (inch) 48.514 (1.91)
Intake valve spring assembled height mm (inch) 40.08-40.87 (1.578-1.609)
Exhaust valve spring assembled height mm (inch) 40.08-40.87 (1.578-1.609)
Valve spring out of square mm (inch) 1.98 (0.078)
Intake valve spring compression pressure at specified height (lbs) 347-383 Nm 39.86-40.4mm 256-282 lb/ft at 1.56-1.59in
Camshaft
Intake lobe lift mm (inch) 6.92 (0.272)
Exhaust lobe lift mm (inch) 6.92 (0.272)
Maximum allowable lobe lift loss mm (inch) 0.127 (0.005)
End play mm (inch) 0.065-0.165 (0.0025 - 0.0064)
Journal to bearing clearance mm (inch) 0.025-0.076 (0.001-0.003)
Repair limit mm (inch) 0.152 (0.006)
Camshaft Drive
No. 1 journal diameter mm (inch) 49.57-49-59 (1.951-1.952)
No. 2 journal diameter mm (inch) 49.21-49.23 (1.937-1.938)
No. 3 journal diameter mm (inch) 48.83-48.84 (1.9224-1.9228)
No. 4 journal diameter mm (inch) 48.44- 48.46 (1.907-1.9078)
Maximum camshaft journal runout mm (inch) 0.127 (0.005)
No. 1 bearing inside diameter mm (inch) 49.635-49.655 (1.954-1.955)
No. 2 bearing inside diameter mm (inch) 49.225-49.275 (1.939-1.940)
No. 3 bearing inside diameter mm (inch) 48.750-48.768 (1.919-9.920)
No. 4 bearing inside diameter mm (inch) 48.875-48.895 (1.924-1.925)
Front Bearing Location Depth mm (inch)b 0.51-0.89 (0.020-0.035)
Cylinder Block
Cylinder bore diameter mm (inch) 100.38-100.43 (3.9527-3.9543)
Maximum cylinder out-of-round mm (inch) 0.025 (0.0009)
Maximum cylinder taper mm (inch) 0.025 (0.0009)
Main bearing bore diameter mm (inch) 60.62-60.64 (2.3866-2.3874)
Crankshaft to rear face of block runout TIR maximum mm (inch) 0.127 (0.005)
Crankshaft and Flywheel
Main bearing journal diameter mm (inch) 56.980-57.0 (2.2433-2.2441)
Main bearing journal out-of-round mm (inch) 0.015 (0.0006)
Main bearing journal runout TIR maximum mm (inch) 0.0508 (0.002)
Main bearing journal runout limit mm (inch) 0.127 (0.005)
Main bearing thrust face runout TIR maximum mm (inch) 0.0254 (0.001)
Main bearing journal taper maximum per inch mm (inch) 0.008 (0.0003 per inch)
Thrust bearing journal length mm (inch) 26.39-26.44 (1.039-1.041)
Main and rod bearing journal finish rms maximum 12 and 8.8
Main bearing thrust face finish rms maximum 20
Connecting rod journal diameter mm (inch) 53.98-54.0 (2.1252-2.1260)
Connecting rod journal maximum out-of-round mm (inch) 0.008 (0.0003)
Connecting rod journal taper per inch maximum mm (inch) 0.008 (0.0003 per inch)
Crankshaft free end play mm (inch) 0.05-0.32 (0.002-0.01250)
Connecting Rod Bearings
Clearance to crankshaft mm (inch) 0.020-0.053 (0.0008-0.0020)
Bearing wall thickness mm (inch) 1.399-1.406 (0.055-0.0554)
Main Bearings
Clearance to crankshaft (inch) 0.013-0.056 (0.0005-0.0022)
Bearing wall thickness mm (inch) 1.799-1.806 (0.0708-0.0711)
Connecting Rod, Piston and Rings
Piston pin bore or bushing i.d. mm (inch 23.958-23.976 (0.943-0.944)
Rod bearing bore i.d. mm (inch) 56.82-56.84 (2.237-2.238)
Rod bearing bore out-of-round mm (inch) 0.01 (0.0004)
Rod length center to center mm (inch) 145.965-146.035 (5.746-5.749)
Alignment (bore-to-bore max. Diff.) twist mm (inch) 0.038 (0.0015) per 25.4 mm (1.000)
Alignment (bore-to-bore max. Diff.) bend mm (inch) 0.0125 (0.0049) per 25.4 mm (1.000)
Side clearance (assembled to crank) mm (inch) 0.092-0.268 (0.0032-0.0106)
Piston Pin
Length mm (inch)
Red 72.0-72.80 (2.835-2.866)
Blue 23.992-23.997 (0.9446-0.9448)
23.997-24 (0.9448-0.9449)
Pin to piston clearance mm (inch) 0.008-0.0152 (0.0003-0.0006)
Pin to connecting rod clearance mm (inch) Interference Fit
Piston
Diameter - mm (inch) 100.380-100.400 (3.952-3.953)
Piston to bore clearance mm (inch) 0.021-0.048 (0.0008-0.0019)
Pin bore diameter mm (inch) 24.007-24.013
(0.9452-0.9453)
Top ring grove width mm (inch) 1.976-1.989
(0.0778-0.0783)
Bottom ring grove width mm (inch) 2.977-2.99 (0.1172-0.1177)
Diameter-coded blue mm (inch) 100.880-100.900 (3.972)
Diameter-coded yellow mm (inch) 101.350-101.370 (3.99)
Piston Rings
Top compression ring gap mm (inch) 0.381-0.584 (0.015-0.023)
Bottom compression ring gap mm (inch) 0.381-1.397 (0.015-0.055)
Oil ring gap mm (inch) 0.381-1.397 (0.015-0.055)
Top compression ring width mm (inch) 1.578-1.59 (0.062)
Bottom compression ring width mm (inch) 1.728-1.74 (0.068-0.069)
Top compression side clearance mm (inch) 0.050-0.082 (0.001-0.003)
Bottom compression side clearance mm (inch) 0.050-0.082 (0.001-0.003)
Lubrication System
Relief valve spring pressure lbs. At 35.3 lbs. (1.39 inch) 61.3-66.3 Nm (45.100-48.730 lb/ft)
Driveshaft to housing clearance mm (inch) 0.002-0.0031 (0.001)
Relief valve to housing clearance mm (inch) 0.0015-0.003 (0.0001)
Rotor assembly end clearance max. Mm (inch) 0.0014-0.0044 (0.00015)
Outer race to end clearance mm (inch) 0.006-0.012 (0.0002-0.005)
Engine oil capacity liters (quarts) with oil filter 4.7 (5)
Lubricant
Super Premium
SAE 5W-30 Motor Oil
XO-5W30-QSP WSS-M2C153-G
Silicone Brake Caliper Grease and Dielectric Compound
D7AZ-19A331-A ESE-M1C171-A
Sealer
Threadlock 262
E2FZ-19554-B WSK-M2G351-A6
Silicone Gasket and Sealant
F7AZ-19554-EA WSE-M4G323-A4
Pipe Sealant with Teflon®
D8AZ-19554-A WSK-M2G350-A2
ESR-M18P7-A
Cleaner
Metal Surface Cleaner
F4AZ-19A536-RA WSE-M5B392-A