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CYLINDER BLOCK Unit: mm (in) SEM902-A Standard Limit Surface flatness Less than 0.03 (0.0012) 0.10 (0.0039) Cylinder Inner Grade No. 1 0.2 (0.008) 84.500 - 84.510 (3.3268 - 3.3272) Grade No. 2 84.510 - 84.520 (3.3272 - 3.3276) Grade No. 3 84.520 - 84.530 (3.3276 - 3.3279) Grade No. 4 84.530 - 84.540 (3.3279 - 3.3283) Grade No. 5 84.540 - 84.550 (3.3283 - 3.3287) Out-of- Less than 0.015 (0.0006) 0.04 (0.0016) Taper Less than 0.010 (0.0004) 0.04 (0.0016) Piston to cylinder clear- 0.030 - 0.050 (0.0012 - 0.0020) — Main journal inner Grade No. 0 — 56.654 - 56.663 (2.2305 - 2.2308) Grade No. 1 56.663 - 56.672 (2.2308 - 2.2312) Grade No. 2 56.672 - 56.680 (2.2312 - 2.2315) PISTON, PISTON RING AND PISTON PIN Unit: mm (in) Piston Standard Grade No. 1 84.460 - 84.470 (3.3252 - 3.3256) Grade No. 2 84.470 - 84.480 (3.3256 - 3.3260) Grade No. 3 84.480 - 84.490 (3.3260 - 3.3264) Grade No. 4 84.490 - 84.500 (3.3264 - 3.3268) Grade No. 5 84.500 - 84.510 (3.3268 - 3.3272) Oversize 0.25 (0.0098) 84.710 - 84.760 (3.3350 - 3.3370) 0.5 (0.020) 84.960 - 85.010 (3.3449 - 3.3468) Measure position (From Top) 62 (2.44) Piston pin hole diameter 27.991 - 27.999 (1.1020 - 1.1023) Piston ring Unit: mm (in) Side clearance Top Standard 0.020 - 0.040 (0.0008 - 0.0016) Limit 0.10 (0.0039) 2nd Standard 0.050 - 0.085 (0.0020 - 0.0033) Limit 0.10 (0.0039) Oil Standard 0.030 - 0.070 (0.0012 - 0.0028) End gap Top Standard Bore grade 1, 2, 3 0.22 - 0.32 (0.0087 - 0.0126) Bore grade 4, 5 0.12 - 0.22 (0.0047 - 0.0087) Limit 1.0 (0.039) 2nd Standard 0.38 - 0.53 (0.0150 - 0.0209) Limit 0.7 (0.028) Oil Standard 0.30 - 0.55 (0.0118 - 0.0217) Limit 0.6 (0.024) SERVICE DATA AND SPECIFICATIONS (SDS) CD20T Inspection and Adjustment (Cont’d) EM-199 |