TSRM/MK4 Supra/Repair Manual
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EM/Engine Mechanical135 / 139
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SERVICE SPECIFICATIONS
SERVICE DATA — MK4 Supra Engine Mechanical, page 135
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SERVICE SPECIFICATIONS SERVICE DATA Compression pressure at 250 rpm STD 2JZ–GE 2JZ–GTE Minimum 2JZ–GE 2JZ–GTE Difference of pressure between each cylinder 1,275 kPa (13.0 kgf/cm², 185 psi) or more 1,079 kPa (11.0 kgf/cm², 156 psi) or more 1,079 kPa (11.0 kgf/cm², 156 psi) 883 kPa (9.0 kgf/cm², 128 psi) 98 kPa (1.0 kgf/cm², 14 psi) or less Valve clearance at cold Intake Exhaust Adjusting shim (for repair part) Mark 2500 Mark 2.550 Mark 2.600 Mark 2.650 Mark 2.700 Mark 2.750 Mark 2.800 Mark 2.850 Mark 2.900 Mark 2.950 Mark 3.000 Mark 3.050 Mark 3.100 Mark 3.150 Mark 3.200 Mark 3.250 Mark 3.300 0.15–0.25 mm (0.006–0.010 in.) 0.25–0.35 mm (0.010–0.014 in.) 2.500 mm (0.0984 in.) 2.550 mm (0.1004 in.) 2.600 mm (0.1024 in.) 2.650 mm (0.1043 in.) 2.700 mm (0.1063 in.) 2.750 mm (0.1083 in.) 2.800 mm (0.1102 in.) 2.850 mm (0.1122 in.) 2.900 mm (0.1142 in.) 2.950 mm (0.1161 in.) 3.000 mm (0.1181 in.) 3.050 mm (0.1201 in.) 3.100 mm (0.1220 in.) 3.150 mm (0.1240 in.) 3.200 mm (0.1260 in.) 3.250 mm (0.1280 in.) 3.300 mm (0.1299 in.) Ignition timing w/ Terminals TE1 and E1 connected of DLC1 10° BTDC @ idle Idle speed 2JZ–GE 2JZ–GTE 700 ± 50 rpm 650 ± 50 rpm Intake Manifold Vacuum at idle speed 2JZ–GE 2JZ–GTE 66.6 kPa (500 mmHg, 19.7 in.Hg) or more 60 kPa (450 mmHg, 17.7 in.Hg) or more Timing belt Tensioner Protrusion (from housing side) 8.0–8.8 mm (0.315–0.346 in.) Cylinder head Warpage Cylinder block side Maximum Intake manifold side Maximum Exhaust manifold side Maximum Valve guide bore diameter STD O/S 0.05 0.10 mm (0.0039 in.) 0.10 mm (0.0039 in.) 0.10 mm (0.0039 in.) 10.985–11.006 mm (0.4325–0.4333 in.) 11.035–11.056 mm (0.4344–0.4353 in.) Valve seat Refacing angle Contacting angle Contacting width Intake Exhaust Cylinder head bolt diameter STD Minimum 15°, 45°, 60° 45° 1.0–1.4 mm (0.039–0.055 in.) 1.2–1.6 mm (0.047–0.063 in.) 10.8–11.0 mm (0.425–0.433 in.) 10.7 mm (0.421 in.)