Adjusting Shim Selection Chart (Intake) Installed shim thickness mm (in.) Measured clearance mm (in.) 2.500 (0.0984) 2.540 (0.1000) 2.550 (0.1004) 2.560 (0.1008) 2.600 (0.1016) 2.610 (0.1028) 2.620 (0.1031) 2.650 (0.1043) 2.660 (0.1047) 2.670 (0.1051) 2.675 (0.1053) 2.680 (0.1055) 2.690 (0.1059) 2.700 (0.1063) 2.710 (0.1067) 2.720 (0.1071) 2.730 (0.1075) 2.740 (0.1079) 2.750 (0.1083) 2.760 (0.1087) 2.770 (0.1091) 2.780 (0.1095) 2.790 (0.1098) 2.800 (0.1102) 2.810 (0.1106) 2.820 (0.1110) 2.830 (0.1114) 2.840 (0.1118) 2.850 (0.1122) 2.860 (0.1126) 2.870 (0.1130) 2.880 (0.1134) 2.890 (0.1138) 2.900 (0.1142) 2.910 (0.1146) 2.920 (0.1150) 2.930 (0.1154) 2.940 (0.1157) 2.950 (0.1161) 2.960 (0.1165) 2.970 (0.1169) 2.975 (0.1171) 2.980 (0.1173) 2.990 (0.1177) 3.000 (0.1181) 3.010 (0.1185) 3.020 (0.1189) 3.030 (0.1193) 3.040 (0.1197) 3.050 (0.1201) 3.060 (0.1205) 3.070 (0.1209) 3.080 (0.1213) 3.090 (0.1217) 3.100 (0.1220) 3.110 (0.1224) 3.120 (0.1228) 3.130 (0.1232) 3.140 (0.1236) 3.150 (0.1240) 3.160 (0.1244) 3.170 (0.1248) 3.180 (0.1252) 3.190 (0.1256) 3.200 (0.1260) 3.210 (0.1264) 3.220 (0.1268) 3.230 (0.1272) 3.240 (0.1276) 3.250 (0.1280) 3.260 (0.1283) 3.270 (0.1287) 3.280 (0.1291) 3.290 (0.1295) 3.300 (0.1299) 0.000 – 0.020 (0.0000 – 0.0008) 0.021 – 0.040 (0.0008 – 0.0016) 0.041 – 0.060 (0.0016 – 0.0024) 0.061 – 0.080 (0.0024 – 0.0031) 0.081 – 0.100 (0.0032 – 0.0039) 0.101 – 0.120 (0.0040 – 0.0047) 0.121 – 0.140 (0.0048 – 0.0055) 0.141 – 0.149 (0.0056 – 0.0059) 0.150 – 0.250 (0.0059 – 0.0098) 0.251 – 0.260 (0.0099 – 0.0102) 0.261 – 0.280 (0.0103 – 0.0110) 0.281 – 0.300 (0.0111 – 0.0118) 0.301 – 0.320 (0.0119 – 0.0126) 0.321 – 0.340 (0.0126 – 0.0134) 0.341 – 0.360 (0.0134 – 0.0142) 0.361 – 0.380 (0.0142 – 0.0150) 0.381 – 0.400 (0.0150 – 0.0157) 0.401 – 0.420 (0.0158 – 0.0165) 0.421 – 0.440 (0.0166 – 0.0173) 0.441 – 0.460 (0.0174 – 0.0181) 0.461 – 0.480 (0.0181 – 0.0189) 0.481 – 0.500 (0.0189 – 0.0197) 0.501 – 0.520 (0.0197 – 0.0205) 0.521 – 0.540 (0.0205 – 0.0213) 0.541 – 0.560 (0.0213 – 0.0220) 0.561 – 0.580 (0.0221 – 0.0228) 0.581 – 0.600 (0.0229 – 0.0236) 0.601 – 0.620 (0.0237 – 0.0244) 0.621 – 0.640 (0.0244 – 0.0252) 0.641 – 0.660 (0.0252 – 0.0260) 0.661 – 0.680 (0.0260 – 0.0268) 0.681 – 0.700 (0.0268 – 0.0276) 0.701 – 0.720 (0.0276 – 0.0283) 0.721 – 0.740 (0.0284 – 0.0291) 0.741 – 0.760 (0.0292 – 0.0299) 0.761 – 0.780 (0.0300 – 0.0307) 0.781 – 0.800 (0.0307 – 0.0315) 0.801 – 0.820 (0.0315 – 0.0323) 0.821 – 0.840 (0.0323 – 0.0331) 0.841 – 0.860 (0.0331 – 0.0339) 0.861 – 0.880 (0.0339 – 0.0346) 0.881 – 0.900 (0.0347 – 0.0354) 0.901 – 0.920 (0.0355 – 0.0362) 0.921 – 0.940 (0.0363 – 0.0370) 0.941 – 0.960 (0.0370 – 0.0378) 0.961 – 0.980 (0.0378 – 0.0386) 0.981 – 1.000 (0.0386 – 0.0394) 1.001 – 1.020 (0.0394 – 0.0402) 1.021 – 1.040 (0.0402 – 0.0409) 1.041 – 1.050 (0.0410 – 0.0413) New shim thickness mm (in.) Shim No. Thickness Shim No. Thickness 1 2.500 (0.0984) 10 2.950 (0.1161) 2 2.550 (0.1004) 11 3.000 (0.1181) 3 2.600 (0.1024) 12 3.050 (0.1201) 4 2.650 (0.1043) 13 3.100 (0.1220) 5 2.700 (0.1063) 14 3.150 (0.1240) 6 2.750 (0.1083) 15 3.200 (0.1260) 7 2.800 (0.1102) 16 3.250 (0.1280) 8 2.850 (0.1122) 17 3.300 (0.1299) 9 2.900 (0.1142) Intake valve clearance (Cold): 0.15 – 0.25 mm (0.006 – 0.010 in.) EXAMPLE: The 2.800 mm (0.1102 in.) shim is installed, and the measured clearance is 0.450 mm (0.0177 in.) Replace the 2.800 mm (0.1102 in.) shim with a new No.12 shim. HINT: New shims have the thickness in millimeters imprinted on the face. 1997 SUPRA (RM502U) ENGINE MECHANICAL (2JZ-GTE) — VALVE CLEARANCE Author: Date: 1114 EM-9 V00719