Cylinder Block Assembly: Specifications

Cylinder Block
Cylinder bore diameter, class 1. 84.800 - 84.810 mm
Cylinder bore diameter, class 2. 84.810 - 84.820 mm
Cylinder bore diameter, class 3. 84.820 - 84.830 mm
Inner diameter, main bearing shells installed 58.011 - 58.038 mm
Inner diameter, main bearing shells installed (main bearing shells with stepped sizes) 58.008 - 58.031 mm
Main bearing radial clearance 0.011 - 0.058 mm
Main bearing radial clearance (main bearing shells with stepped sizes) 0.020 - 0.042 mm
Main bearing parent bore 62.287 - 62.300 mm
Piston clearance in cylinder bore 0.010 - 0.030 mm

Cylinder Block and Lower Crankcase Spacers
Required spacer thickness if there is a gap between the cylinder block and the lower crankcase of
0.26 mm - 0.50 mm 0.25 mm
0.51 mm - 0.75 mm 0.50 mm

Crankshaft
Main bearing journal diameter 57.980- 58.000 mm
Main bearing journal end float 0.090 - 0.260 mm
Connecting rod bearing journal diameter 46.890 - 46.910 mm

Tighten the main bearing bolts in two stages.
Stage 1 25 Nm
Stage 2 60 degrees

Available sizes of main bearing shell.
Size A 2.145 - 2.152 mm (green)
Size B 2.142 - 2.147 mm (brown).
Size C 2.135 - 2.142 mm (brown).
Size D 2.130 - 2.137 mm (brown).

Connecting Rod
Big end bore diameter 49.890 - 49.910 mm
Small end bore diameter 19.951 - 19.981 mm
Inner diameter, connecting rod bearing shells installed 46.926 - 46.960 mm
Radial connecting rod bearing clearance 0.016 - 0.070 mm
Axial connecting rod bearing clearance 0.090 - 0.320 mm

Pistons
Piston diameter, class 1. 84.770 - 84.780 mm
Piston diameter, class 2. 84.780 - 84.790 mm
Piston diameter, class 3. 84.790 - 84.800 mm
Piston clearance in cylinder bore 0.010 - 0.030 mm
Piston ring gaps (installed)
- upper compression ring 0.300 - 0.500 mm
- lower compression ring 0.300 - 0.500 mm
- oil scraper ring 0.400 - 1.400 mm
Ring gap position: The piston ring gaps must be distributed evenly around the circumference of the piston This also applies to the oil scraper ring elements. Align the ring gaps at 120 degrees to each other.

Crankshaft belt pulley 115 Nm (85 ft. lbs.)