Adjusting Shim Selection Chart (Exhaust) Installed shim thickness mm (in.) 2.500 (0.0984) 2.550 (0.1004) 2.600 (0.1024) 2.650 (0.1043) 2.700 (0.1063) 2.750 (0.1083) 2.800 (0.1102) 2.850 (0.1122) 2.900 (0.1142) 2.950 (0.1161) 3.000 (0.1181) 3.050 (0.1201) 3.100 (0.1220) 3.150 (0.1240) 3.200 (0.1260) 3.250 (0.1280) 3.300 (0.1299) Measured clearance mm (in.) 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 – 0.160 (0.0056 – 0.0063) 0.161 – 0.180 (0.0063 – 0.0071) 0.181 – 0.200 (0.0071 – 0.0079) 0.201 – 0.220 (0.0079 – 0.0087) 0.221 – 0.240 (0.0087 – 0.0094) 0.241 – 0.249 (0.0095 – 0.0098) 0.250 – 0.350 (0.0098 – 0.0138) 0.351 – 0.360 (0.0138 – 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 (0.0387 – 0.0394) 1.001 – 1.020 (0.0394 – 0.0402) 1.021 – 1.040 (0.0402 – 0.0409) 1.041 – 1.060 (0.0410 – 0.0417) 1.061 – 1.080 (0.0418 – 0.0425) 1.081 – 1.100 (0.0426 – 0.0433) 1.101 – 1.120 (0.0433 – 0.0441) 1.121 – 1.140 (0.0441 – 0.0449) 1.141 – 1.150 (0.0449 – 0.0453) Exhaust valve clearance (Cold): 0.25 - 0.35 mm (0.010 - 0.014 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.10 shim. 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) HINT: New shims have the thickness in millimeters imprinted on the face. 1997 SUPRA (RM502U) Author : Date : 1115 V00720