4.
DISASSEMBLY, INSPECTION AND REASSEMBLY OF ENGINES Piston ring dimension mm 4-46 82E-5 – 98E-5 SERIES Model Part Item Standard Limit 3D82AE (S)3D84E (S)4D84E Top ring Ring groove width 2.065 – 2.080 — Ring width 1.970 – 1.990 1.950 Side clearance 0.075 – 0.110 — End clearance 0.200 – 0.400 0.490 Second ring Ring groove width 2.035 – 2.050 2.150 Ring width 1.970 – 1.990 1.950 Side clearance 0.045 – 0.080 0.200 End clearance 0.200 – 0.400 0.490 Oil ring Ring groove width 4.015 – 4.030 4.130 Ring width 3.970 – 3.990 3.950 Side clearance 0.025 – 0.060 0.180 End clearance 0.200 – 0.400 0.490 3D88E 4D88E Top ring Ring groove width 2.060 – 2.075 — Ring width 1.970 – 1.990 1.950 Side clearance 0.070 – 0.105 — End clearance 0.200 – 0.400 0.490 Second ring Ring groove width 2.025 – 2.040 2.140 Ring width 1.970 – 1.990 1.950 Side clearance 0.035 – 0.070 0.190 End clearance 0.200 – 0.400 0.490 Oil ring Ring groove width 4.015 – 4.030 4.130 Ring width 3.970 – 3.990 3.950 Side clearance 0.025 – 0.060 0.180 End clearance 0.200 – 0.400 0.490 4D94LE (S)4D98E Top ring Ring groove width 2.040 – 2.060 — Ring width 1.940 – 1.960 1.920 Side clearance 0.080 – 0.120 — End clearance 0.250 – 0.450 0.540 Second ring Ring groove width 2.080 – 2.095 2.195 Ring width 1.970 – 1.990 1.950 Side clearance 0.090 – 0.125 0.245 End clearance 0.450 – 0.650 0.730 Oil ring Ring groove width 3.015 – 3.030 3.130 Ring width 2.970 – 2.990 2.950 Side clearance 0.025 – 0.060 0.180 End clearance 0.250 – 0.450 0.550