TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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EM/Engine Mechanical9 / 98
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ENGINE MECHANICAL — Engine Tune-Up — MK3 Supra Engine Mechanical, page 9
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(c) Turn the crankshaft pulley 2/3 revolution (240°‡) and measure the clearance of No.3 (IN) and No.5 (IN) and No.3 (EX) and No.6 (EX) valves. • Check that the valve lifters on the No.3 cylinder are loose. • Measure only those valves indicated in the figure. • Record the measurements which are out of specification. They will be used later to determine the required replacement shims. (d) Turn the crankshaft pulley 2/3 revolution (240°‡) and measure the clearance of No.2 (IN) and No.6 (IN) and No.2 (EX) and No.4 (EX) valves. • Check that the valve lifters on the No.2 cylinder are loose. • Measure only those valves indicated in the figure. • Record the measurements which are out of specification. They will be used later to determine the required replacement shims. 6. ADJUST VALVE CLEARANCE (a) Remove the adjusting shim. • Turn the crankshaft to position the cam lobe of the camshaft on the adjusting valve upward. • Position the valve lifter notch so that the shim can be removed with a small screwdriver. • Using SST (A), press down the valve lifter and place SST (B) between the camshaft and valve lifter. Remove SST (A). SST 09248-55010 HINT: For easy removal of the shim, when positioning SST (B), set it on the lifter so there is space enough to be able to remove the shim. • Remove the adjusting shim with a small screwdriver and magnetic finger.