Cylinder Block Assembly: Specifications
Cylinder BlockDisplacement 4.6L (4V) (281 CID)
Number of Cylinders 8
Bore and Stroke 90.2 x 90.0 mm (3.55 x 3.54 inch)
Firing Order 1-3-7-2-6-5-4-8
Combustion Chamber Volume (cc) (c) 52.6+0.5 cm
(c) P=Primary, S=Secondary, E=Exhaust
Head Gasket Face Flatness 0.15 mm (0.006 inch) MAX overall
Main Bearing Bore Diameter 72.400-72.424 mm (2.8504-2.8513 inch)
CRANKSHAFT
Main Bearing Journal Diameter 67.481-67.505 mm (2.6567269-2.6576718 inch)
Connecting Rod Journal Diameter 52.983-53.003 mm (2.085941-2.086728 inch)
Crankshaft Free End Play 0.130-0.301 mm (0.005118-0.011850 inch)
Crankshaft Runout to Rear Face of Block 0.050 mm (0.01969 inch) MAX
Connecting Rod Bearings
Clearance to Crankshaft
Desired 0.027-0.069 mm (0.0010629-0.0027165 inch)
Allowable 0.027-0.069 mm (0.0010629-0.0027165 inch)
Bearing Wall Thickness (Std) (f) 1.920-1.928 mm (0.075591-0.075905 inch)
Main Bearings
Clearance to Crankshaft
Desired 0.025-0.045 mm (0.00098-0.00177 inch)
Allowable 0.025-0.050 mm (0.00098-0.00197 inch)
Bearing Wall Thickness (Std) (f) 2.451 mm (0.0965 inch)
(f) 0.050 Undersize-add 0.025 to standard thickness.
Connecting Rod bearing cap bolts
Stage 1: tighten to 25 Nm (18 ft. lbs.).
Stage 2: tighten to 45 Nm (33 ft. lbs.).
Stage 3: tighten an additional 90 degrees.
Check the connecting rod bearing clearance.
Crankshaft Main Bearing Cap Bolts
Stage 1: tighten to 10 Nm (89 inch lbs.).
Stage 2: tighten to 25 Nm (18 ft. lbs.).
Stage 3: tighten to 40 Nm (30 ft. lbs.).
Stage 4: tighten an additional 90 degrees.
Stage 1: tighten to 40 Nm (30 ft. lbs.).
Stage 2: tighten an additional 90 degrees.
Check the crankshaft end play.
Connecting Rod
Pin Bore Diameter 22.012-22.024 mm (0.86661-0.86708 inch)
Crankshaft Bearing Bore Diameter 56.866-56.886 mm (2.23881-2.23960 inch)
Length (Center-to-Center) 150.7 mm (5.933 inch)
Alignment (Bore-To-Bore Max. Diff.) (g)
Twist 0.050 per 25 mm (0.00197 per 0.9843 inch)
Bend 0.038 per 25 mm (0.00150 per 0.9843 inch)
(g) Pin bore and crank bearing bore must be parallel and in same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 101.5 mm on each side of rod centerline.
Side Clearance (Assembled to Crank)
Standard 0.15-0.45 mm (0.00591-0.01772 inch)
Service Limit 0.50 mm (0.01969 inch) MAX
CYLINDER BORE AND PISTON
Cylinder Bore Diameter (h)
Surface Finish (RMS) 0.2-0.6 Microns
Out-of-Round Limit 0.015 mm
Out-of-Round Service Limit 0.020 mm
Taper Service Limit 0.006 mm
(h) Cylinder Bore Diameter
Red-90.200-90.213
Blue-90.213-90.226
Yellow-90.226-90.239
Piston
Diameter (i). 028 mm (.0010 inch)
Coded Red 1 90.167-90.188 mm (3.299-3.5505 inch)
Coded Blue 2 90.180-90.195 mm (3.5504-3.5510 inch)
Coded Yellow 3 90.198-90.208 mm
Coated Piston-to-Bore Clearance -0.010/+0.026 mm (-0.0003937/+0.0010236 inch)
Pin Bore Diameter 21.9985-22.0025 mm (0.866081 -0.866238 inch)
(i) Measured at 42 mm from piston dome, at 90 degrees to the piston pin
Ring Groove Width
Compression (Top) 1.230-1.250 mm (0.484-0.0492 inch)
Compression (Bottom) 1.520-1.540 mm (0.05984-0.06062 inch)
Oil Ring 3.030-3.055mm
Piston Pin
Length 61.601-62.030 mm (2.42523-2.44212 inch)
Diameter 22.0005-22.0030 mm (0.8661596-0.8662581 inch)
Pin to Piston Fit (j) -0.0045/+0.002 mm (-0.000177/+0.0000787 inch)
(j) Piston pin outer diameter is larger than piston pin bore, providing a possible interference fit.
Pin to Rod Clearance
Standard 0.004-0.0175 mm (0.000157-0.00689 inch)
Service Limit 0.035 mm (0.001378 inch)
Oil Ring 1.15 mm (0.04528 inch) MAX
Side Clearance .075-.1000 mm (0.0030-0.0040 inch)
Compression (Top) 0.0090-0.0235 mm (0.000354-0.000925 inch)
Compression (Bottom) 0.030-0.080 mm (0.00118-0.00315 inch)
Oil Ring Snug Fit
Ring Gap (k)
Compression (Top) 0.150-0.300 mm (0.006-0.0018 inch)
Compression (Bottom) 0.300-0.550 mm (0.0018-0.0022 inch)
Oil Ring (Steel Rail) 0.15-0.66 mm (0.00591-0.02598 inch)
k Specification in 90.200 mm diameter gauge.
Piston Rings
Ring Gap
Compression (Top) 1.00 mm (0.03937 inch) MAX
Compression (Bottom) 1.00 mm (0.03937 inch) MAX
Service Limit 1.15 mm (0.04528 inch) MAX
Crankshaft Pulley bolt
Stage 1: Tighten the bolt to 90 Nm (66 ft. lbs.).
Stage 2: Loosen the bolt one full turn.
Stage 3: Tighten the bolt to 50 Nm (37 ft. lbs.).
Stage 4: Tighten the bolt an additional 90 degrees.