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Engine Block

Engine Block Service Specification Chart

Item Measurement Qualification Standard or New Service Limit
Block Warpage of deck   0.07 mm (0.0028 in) max. 0.10 mm (0.0039 in)
Bore diameter   73.000-73.015 mm (2.87401-2.87460 m) 73.065 mm (2.87657 in)
Bore taper Difference between first and third measurement - 0.05 mm (0.0020 in)
Reboring limit   - 0.25 mm (0.0098 in)
Piston Skirt Odd. at 16.0 mm (0.630 in) from bottom of skirt   72.98-72.99 mm (2.8732-2.8736 in) 72.97 mm (2.8728 in)
Clearance in cylinder   0.010-0.035 mm (0.00039-0.00138 in) 0.05 mm (0.0020 in)
Piston ring Ring-to-groove clearance Top (RIKEN) 0.065-0.090 mm (0.00256-0.00354 in) 0.15 mm (0.0059 in)
Top (NIPPON) 0 061-0.090 mm (0.00240-0.00354 in) 0.15 mm (0.0059 in)
Second 0.030-0.055 mm (0.00118-0.00217 in) 0.12 mm (0.0047 in)
Ring end gap Top 0.15-0.30 mm (0.0059-0.0118 in) 0.60 mm (0.0236 in)
Second (RIKEN) 0 30-0.42 mm (0.0118-0.0165 in) 0.65 mm (0.0256 in)
Second (NIPPON) 0.35-0.50 mm (0.0138-0.0197 in) 0.65 mm (0.0256 in)
Oil 0.20-0.70 mm (0.0079-0.0276 in) 0.80 mm (0.0315 in)
Piston pin Odd.   17.996-18.000 mm (0.70850-0.70866 in) -
Pin-to-piston clearance   0.010-0.017 mm (0.00039-0.00067 in) -
Connecting rod Pin-to-rod clearance   -0.036 - -0.019 mm (-0.00142 - -0.00075 in) -
Small end bore diameter   17.964-17.977 mm (0.70724-0.70775 m) -
Big end bore diameter   43.0 mm (1.693 in) -
End play   0.15-0 35 mm (0.0059-0.0138 in) 0.40 mm (0.0157 in)
Crankshaft Main journal diameter   49.976-50.000 mm (1.96756-1.96850 in) -
Rod journal diameter   39 976-40.000 mm (1.57386-1.57480 in) -
Rod/main journal taper   0.005 mm (0.00020 in) max. 0.010 mm (0.00039 in)
Rod/main journal out-of-round   0.005 mm (0.00020 in) max. 0.010 mm (0.00039 in)
End play   0.10-0.35 mm (0.0039-0.0138 in) 0.45 mm (0.0177 in)
Total runout   0.03 mm (0.0012 in) max. 0.04 mm (0.0016 in)
Crankshaft bearing Main bearing-to-journal oil clearance   0.018-0.036 mm (0.00071-0.00142 in) 0.050 mm (0.00197 in)
Connecting rod bearing-to-journal oil clearance   0.020-0.038 mm (0.00079-0.00150 in) 0.050 mm (0.00197 in)