ENGINE MECHANICAL Specifications Idle speed 7M-GE 700 rpm 7M-GTE 650 rpm Intake manifold vacuum 400 mmHg (15.75 in.Hg, 53.3 kPa) or more Compression pressure at 250 rpm STD 7M-GE 11.0 kg/cm² 156 psi 1,079 kPa 7M-GTE 10.0 kg/cm² 142 psi 981 kPa Limit 9.0 kg/cm² 128 psi 883 kPa Differential of pressure between each cylinder 1.0 kg/cm² (14 psi, 98 kPa) or less Cylinder head Warpage Cylinder block side Limit 0.10 mm 0.0039 in. Intake manifold side Limit 0.10 mm 0.0039 in. Exhaust manifold side Limit 0.10 mm 0.0039 in. Valve guide bore STD 11.000 – 11.027 mm 0.4331 – 0.4341 in. O.S 0.05 11.050 – 11.077 mm 0.4350 – 0.4361 in. Valve seat Refacing angle 30°, 45°, 60° Contacting angle 45° Contacting width 1.0 – 1.4 mm 0.039 – 0.055 in. Valve guide bushing Inside diameter 6.010 – 6.030 mm 0.2366 – 0.2374 in. Outside diameter STD 11.033 – 11.044 mm 0.4344 – 0.4348 in. O.S 0.05 11.083 – 11.094 mm 0.4363 – 0.4368 in. Replacing temperature (Cylinder head side) 90°C 194°F Valve Valve overall length STD 98.15 mm 3.8642 in. Limit 97.75 mm 3.8484 in. Valve face angle 44.5° Stem diameter Intake 5.970 – 5.985 mm 0.2350 – 0.2356 in. Exhaust 5.965 – 5.980 mm 0.2348 – 0.2354 in. Stem oil clearance STD Intake 0.025 – 0.060 mm 0.0010 – 0.0024 in. Exhaust 0.030 – 0.065 mm 0.0012 – 0.0026 in. Limit Intake 0.08 mm 0.0031 in. Exhaust 0.10 mm 0.0039 in. Valve margin thickness STD 1.3 mm 0.051 in. Limit 0.5 mm 0.020 in. Valve spring Free length 41.64 mm 1.6394 in. Installed length 35.0 mm 1.378 in. Installed load at 35 mm (1.378 in.) STD 18.0 kg 35 lb 157 N Squareness Limit 1.5 mm 0.059 in. Valve lifter Lifter diameter STD 27.975 – 27.985 mm 1.1014 – 1.1018 in. Oil clearance Limit 0.015 – 0.048 mm 0.0006 – 0.0018 in. Limit 0.10 mm 0.0039 in.