TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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EM/Engine Mechanical12 / 139
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ADJUST VALVE CLEARANCE — MK4 Supra Engine Mechanical, page 12
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EG–12 ENGINE – ENGINE MECHANICAL Valve clearance (Cold): Intake .15–0.25 mm (0.006–0.010 in.) Exhaust .25–0.35 mm (0.010–0.014 in.) 2 2 4 4 6 6 EX IN 3 3 5 5 6 6 P10711 (b) Turn the crankshaft pulley 1 revolution (360°), and align the groove with timing mark "O" of the No.1 timing belt cover. (c) Check only the valves indicated as shown. Measure the valve clearance. (See procedure in step (a)) Upward Cam Lobe Notch P00094 6. ADJUST VALVE CLEARANCE (a) Remove the adjusting shim. • Turn the camshaft so that the cam lobe for the valve to be adjusted faces up. • Turn the valve lifter with a screwdriver so that the notches are perpendicular to the camshaft. SST (A) P12204 • Using SST (A), hold the camshaft as shown in the illustration. SST 09248–55040 (09248–05410) SST (B) SST (A) P11925 • Using SST (A), press down the valve lifter and place SST (B) between the camshaft and valve lifter. Remove SST (A). SST 09248–55040 (09248–05410, 09248–05420) HINT: • Apply SST (B) at slight angle on the side marked with "7", at the position shown in the illustration.