Cylinder Block Assembly: Specifications

Grade Marks / Cylinder Block:

Cylinder Block
Cylinder Bore Diameter 86.0 ± 0.0076 mm (3.3859 ± 0.0003 in.)
Out of Round (Max.) 0.076 mm (0.003 in.)
Taper (Max.) 0.051 mm (0.002 in.)

Connecting Rods
Bearing Clearance 0.024-0.064 mm (0.001-0.0026 in.)
Side Clearance 0.13-0.38 mm (0.0052-0.015 in.)
Side Clearance (Max.) 0.4318 mm (0.017 in.)
Piston Pin Bore Diameter 22.007-22.015 mm (0.8665-0.8668 in.)
Bearing Bore Out of Round (Max.) 0.004 mm (0.0002 in.)
Total Weight (Less Bearing) 529.9 ±7 grams (18.6917 ±0.247 oz.)

Grade Marks / Crankshaft:

Crankshaft Main Bearing Journals
Diameter 63.49-63.51 mm (2.4997-2.5004 in.)
Bearing Clearance 0.035-0.053 mm (0.0014-0.0021 in.)
Bearing Clearance (Max.) 0.087 mm (0.0034 in.)
Out of Round (Max.) 0.015 mm (0.0006 in.))
Taper (Max.) 0.015 mm (0.0006 in.)
End Play 0.0475-0.2725 mm (0.0019-0.0108 in.)
End Play (Max.) 0.43 mm (0.017 in.)

Connecting Rod Journals
Diameter 53.51-53.49 mm (2.1067-2.106 in.)
Bearing Clearance 0.024-0.064 mm (0.001-0.0026 in.)
Out of Round (Max.) 0.015 mm (0.0006 in.)
Taper (Max.) 0.015 mm (0.0006 in.)

Pistons
Material Aluminum Alloy
Piston Diameter 85.983 ± 0.019 mm (3.3851 ± 0.0017 in.)
Clearance at Size Location -0.0096 to +0.0436 mm (-0.0003 to +0.0016 in.)
Piston Weight 316-326 grams (11.1466-11.4994 oz.)
Piston Ring Groove Diameter
No. 1 77.8-78 mm (3.063-3.070 in.)
No. 2 75.9-76.1 mm (2.988-2.996 in.)
No. 3 76.5-76.7 mm (3.011-3.019 in.)

Piston Pins
Type Full Floating
Pin Diameter 21.997-22.000 mm (0.8661-0.8662 in.)
Clearance in Piston 0.005-0.013 mm (0.0002-0.0005 in.)
Clearance in Rod 0.007-0.018 mm (0.0003-0.0008 in.)

Piston Rings
Ring Gap
Top Compression Ring 0.20-0.36 mm (0.008-0.014 in.)
2nd Compression Ring 0.37-0.63 mm (0.0146-0.0249 in.)
Oil Control (Steel Rails) 0.25-0.76 mm (0.010-0.030 in.)

Piston Ring Side Clearance
Compression Ring-Top 0.035-0.083 mm (0.0013-0.0032 in.)
Compression Ring-Second 0.040-0.080 mm (0.0016-0.0031 in.)
Oil Ring (Steel Rails) 0.058-0.204 mm (0.0022-0.0080 in.)

Piston Ring Width
Compression Rings-Top and Second 1.47-1.49 mm (0.0579-0.0587 in.)
Oil Ring (Steel Rails) 0.445-0.470 mm (0.0176-0.0186 in.)

Connecting Rod Cap Bolts 27 Nm (20 ft. lbs.) + 1/4 turn

Crankshaft Damper Bolt 170 Nm (125 ft. lbs.)

Grade Marks / Main Bearing:

Main Bearing Cap bolts
The main bearing cap bolts must be tightened in the proper sequence. First the inner main cap bolts, secondly the windage tray bolts, and lastly the main cap tie (horizontal) bolts.

Install the inside main bearing cap bolts and tighten to 20 Nm (15 ft. lbs.) + 1/4 turn (Fig. 51).

Measure crankshaft end play.
Install connecting rods and measure side clearance.





Install windage tray (Fig. 50). Lubricate bolts with engine oil and tighten to 27 Nm (20 ft. lbs.) + 1/4 turn.

Install the main cap tie (horizontal) bolts and tighten to 28 Nm (250 in. lbs.) (Fig. 51).