System Specifications

Cylinder Head and Valve Train
Bore diameter (insert counterbore diameter) intake
MIN. 39.940 mm
MAX. 39.965 mm
Bore diameter (insert counterbore diameter) exhaust
MIN. 34.940 mm
MAX. 39.965 mm

Cylinder Block
Head gasket surface finish roughness height
CLA 3.8 - 2.0 mm
cut-off 0.8 mm
Dowel height chamfer 0.8 mm x 30°
Dowel height chamfer total 12.5 mm
Cylinder bore diameter 84.8 mm
Piston to cylinder bore clearance 0.020 - 0.040 mm
Surface finish (RA) each bore min. 15 - 38 mm
Average of all bores of a cylinder block (Ra) min. 20 - 30 mm
Out-of-round limit 0.025 mm
Tappet limit 0.013 mm
Main bearing bore diameter
@ ± 30° PF Bearing Cap P/L 62.2835 - 62.3145 mm
other than above 62.2935 ± 0.0100 mm

Connecting Rod
Connecting rod bearings clearance to crankshaft 0.020 - 0.065 mm
Bearing wall thickness (std.) 1.476 - 1.488 mm
Clearance of crankshaft without cylinder head desired - 0.0457 - 0.0660 mm
Clearance of crankshaft without cylinder head allowable - 0.0461 - 0.0859 mm
Clearance of crankshaft with cylinder head desired - 0.0279 - 0.0483 mm
Clearance of crankshaft with cylinder head allowable - 0.0276 - 0.0674 mm
Bearing wall thickness 2.117 - 2.129 mm
Connecting rod piston pin bore diameter 20.570 - 20.610 mm
Crankshaft bearing bore diameter 46.89 - 46.91 mm
Out-of-round limit - piston pin bore 0.008 mm
Taper limit piston pin bore 0.0038/25.4 mm
Length (center to center) 131.905 - 131.975 mm
Out-of-round limit bearing bore 0.010 mm
Taper limit bearing bore 0.010 mm
Alignment bore-to-bore (max. differential) twist 0.05 mm
Alignment bore-to-bore (max. differential) bend 0.038 mm
Side clearance (assembled to crank)
Standard 0.092 - 0.268 mm
Service limit 0.35 mm

Pistons
Piston-to-bore clearance
Rebuild 0.020 - 0.040 mm
Service 0.020 - 0.070 mm
Piston diameter 84.77 - 84.80 mm
Pin bore diameter 20.632 - 20.641 mm
Ring groove width
Compression (top) 1.53 - 1.55 mm
Compression (bottom) 1.53 - 1.55 mm
Oil 4.008 - 4.032 mm
Ring to ring groove clearance
Compression ring (top) 0.04 - 0.08 mm
Compression ring (bottom) 0.06 - 0.09
Squish height 0.908 - 1.858 mm
Piston pin length 66.2 - 67.0 mm
Diameter standard 20.622 - 20.631 mm
Pin to piston clearance 0.007 - 0.013 mm
Pin to rod clearance press fit - 8 KN

Pistons rings
Piston ring width
Compression (top) 1.47 - 1.49 mm
Compression (bottom) 1.46 - 1.49 mm
Oil ring service limit (Side clearance) 0.15 MAX.
Ring gap
Compression (top) 0.25 - 0.28 mm
Compression (bottom) 0.25 - 0.28 mm
Oil ring (steel rail) 0.04 - 1.68 mm
Side clearance
1st ring 0.04 - 0.08 mm
2nd ring 0.04 - 0.09 mm

Main bearing cap bolts 99 Nm
Crankshaft pulley bolt 120 Nm