4. DISASSEMBLY, INSPECTION AND REASSEMBLY OF ENGINES (d) Rod big end measurement Measure the crankpin and bushing accord- ing to 4.4.5.(2)(c) described above. Calculate the oil clearance of a crank pin metal and a crank pin from the measured values of the crank pin metal inner diameter and the crank pin outside diameter. Replace a crank pin metal if the oil clear- ance becomes about the limit dimension of the below table. Correct by grinding if unevenly wear, round- ness exceeding the limit or insufficient out- side diameter is found. Also use an undersized metal.
(Refer to the above (2) c.) [NOTICE] When measuring the inside diameter of the rod big end, install the crankpin metals in the rod big end not to mistake the top and bottom of the metals and tighten the rod bolts by the standard torque. Tightening torque of rod bolt Standard of rod big end mm 4-48 82E-5 – 98E-5 SERIES Model Tightening torque Nm {kgm} Lubricating oil application (threaded portion, and bearing seat surface) 3D82AE 37.2 – 41.2 {3.8 – 4.2} Lube. oil applied (S)3D84E – 4D88E 44.1 – 49.0 {4.5 – 5.0} 4D94LE, (S)4D98E 53.9 – 58.8 {5.5 – 6.0} Model Item Standard Limit 3D82AE Rod I.D. bushing 43.000 – 43.042 — Crankpin O.D.
42.952 – 42.962 42.902 Metal thickness 1.487 – 1.500 — Clearance 0.038 – 0.090 0.150 (S)3D84E – 4D88E Rod I.D. bushing 48.000 – 48.026 — Crankpin O.D. 47.952 – 47.962 47.902 Metal thickness 1.492 – 1.500 — Clearance 0.038 – 0.074 0.150 4D94LE, (S)4D98E Rod I.D. bushing 58.000 – 58.026 — Crankpin O.D. 57.952 – 57.962 57.902 Metal thickness 1.492 – 1.500 — Clearance 0.038 – 0.074 0.150