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Engine Mechanical (2UZ-FE) - Specifications: Other Toyota 4Runner IV

SERVICE DATA

Ignition timingTerminals TC and CG of DLC3 connected8 - 12° BTDC @ idle (Transmission in neutral position)
Idle speed650 - 750 r/min
CompressionCompression pressure1324 kPa (13.5 kgf/cm 2 , 192 psi) or more
Minimum pressure981 kPa (10 kgf/cm 2 , 142 psi)
Difference between each cylinder98 kPa (1.0 kgf/cm 2 , 14 psi)
Valve clearance
Intake(cold)0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust0.25 - 0.35 mm (0.010 - 0.014 in.)
Cylinder head
WarpageMaximum0.10 mm (0.039 in.)
Valve seat
Refacing angle30°, 45°, 60°
Contacting angle45°
Contacting width1.0 - 1.4 mm (0.039 - 0.055 in.)
Valve guide bushing bore diameterSTD10.285 - 10.306 mm (0.4049 - 0.4057 in.)
O/S 0.0510.335 - 10.356 mm (0.4069 - 0.4077 in.)
Cylinder head seat bolt thread inside diameterSTD9.810 - 9.960 mm (0.3862 - 0.3921 in.)
Minimum9.70 mm (0.3819 in.)
Protrusion heightIntake9.2 - 9.8 mm (0.362 - 0.386 in.)
Exhaust8.2 - 8.8 mm (0.323 - 0.346 in.)
Valve guide bushing
Inside diameter5.510 - 5.530 mm (0.2169 - 0.2374 in.)
Outside diameter (for repair part)STD10.285 - 10.306 mm (0.4049 - 0.4057 in.)
O/S 0.0510.335 - 10.356 mm (0.4069 - 0.4077 in.)
Valve
Valve overall lengthSTD Intake95.05 mm (3.7421 in.)
Exhaust95.10 mm (3.7441 in.)
Minimum Intake94.55 mm (3.7224 in.)
Exhaust94.60 mm (3.7244 in.)
Valve face angle44.5°
Stem diameterIntake5.470 - 5.485 mm (0.2154 - 0.2159 in.)
Exhaust5.465 - 5.480 mm (0.2152 - 0.2157 in.)
Stem oil clearanceSTD Intake0.025 - 0.060 mm (0.0010 - 0.0024 in.)
Exhaust0.030 - 0.065 mm (0.0012 - 0.0026 in.)
Maximum Intake0.08 mm (0.031 in.)
Exhaust0.10 mm (0.039 in.)
Margin thicknessSTD IN1.25 mm (0.049 in.)
EX1.4 mm (0.055 in.)
Minimum0.5 mm (0.020 in.)
Valve spring
DeviationMaximum2.0 mm (0.079 in.)
Free length54.1 mm (2.130 in.)
Installed tension at 35.0 mm (1.378 in.)210 - 226 N (21.4 - 23.0 kgf.cm, 47.2 - 50.7 lbf)
Valve lifter
Lifter diameter30.968 - 30.976 mm (1.2192 - 2.2195 in.)
Lifter bore diameter31.000 - 31.016 mm (1.2205 - 1.2211 in.)
Oil clearanceSTD0.024 - 0.050 mm (0.0009 - 0.0020 in.)
Maximum0.07 mm (0.0028 in.)
Camshaft
Thrust clearanceSTD Intake0.040 - 0.090 mm (0.0016 - 0.0035 in.)
Exhaust0.030 - 0.075 mm (0.0012 - 0.0030 in.)
Minimum Intake0.12 mm (0.0047 in.)
Exhaust0.10 mm (0.0039 in.)
Journal oil diameterSTD0.030 - 0.071 mm (0.012 - 0.0028 in.)
Maximum0.10 mm (0.039 in.)
Journal diameter26.954 - 26.970 mm (1.0612 - 1.0618 in.)
Circuit runoutMaximum0.08 mm (0.031 in.)
Cam lobe heightSTD Intake41.94 - 42.04 mm (1.6512 - 1.6551 in.)
Exhaust41.96 - 42.06 mm (1.6520 - 1.6559 in.)
Minimum Intake41.79 mm (1.6453 in.)
Exhaust41.81 mm (1.6461 in.)
Camshaft gear backlashSTD0.020 - 0.200 mm (0.0008 - 0.0079 in.)
Maximum0.30 mm (0.0118 in.)
Camshaft gear bolt washer end free distance18.2 - 18.8 mm (0.712 - 0.740 in.)
Cylinder block
Cylinder head surface warpageMaximum0.07 mm (0.0028 in.)
Cylinder bore diameterSTD Mark 194.002 - 94.010 mm (3.7009 - 3.7012 in.)
Mark 294.010 - 94.023 mm (3.7012 - 3.7017 in.)
Mark 394.023 - 94.031 mm (3.7017 - 3.7020 in.)
Maximum STD94.231 mm (3.7099 in.)
O/S 0.594.731 mm (3.7296 in.)
Main bearing cap bolt tension portion diameterSTD10.760 - 10.970 mm (0.4236 - 0.4319 in.)
Minimum10.40 mm (0.4094 in.)
Piston and piston ring
Piston diameterSTD Mark 193.902 - 93.912 mm (3.6969 - 3.6973 in.)
Mark 293.912 - 93.920 mm (3.6973 - 3.6976 in.)
Mark 393.920 - 93.930 mm (3.6976 - 3.6980 in.)
O/S 0.594.402 - 94.430 mm (3.7168 - 3.7177 in.)
Piston oil clearanceSTD0.090 - 0.111 mm (0.0035 - 0.0044 in.)
Maximum0.13 mm (0.0051 in.)
Piston ring groove clearanceNo. 10.030 - 0.080 mm (0.0012 - 0.0031 in.)
No. 20.030 - 0.070 mm (0.0012 - 0.0028 in.)
Piston ring end gapNo. 10.300 - 0.400 mm (0.0118 - 0.0158 in.)
No. 20.400 - 0.550 mm (0.0157 - 0.0217 in.)
Oil0.130 - 0.380 mm (0.0051 - 0.0150 in.)
Maximum No. 11.10 mm (0.0433 in.)
No. 21.20 mm (0.0472 in.)
Oil1.15 mm (0.0453 in.)
Connecting rod
Thrust clearanceSTD0.160 - 0.290 mm (0.0063 - 0.0138 in.)
Maximum0.35 mm (0.0138 in.)
Connecting rod thickness22.880 - 22.920 mm (0.9008 - 0.9024 in.)
Connecting rod oil clearanceSTD0.027 - 0.053 mm (0.0011 - 0.0021 in.)
Maximum0.065 mm (0.0026 in.)
Connecting rod bearing center wall thickness
Mark 21.484 - 1.487 mm (0.0584 - 0.0585 in.)
Mark 31.487 - 1.490 mm (0.0585 - 0.0587 in.)
Mark 41.490 - 1.493 mm (0.0587 - 0.0588 in.)
Mark 51.493 - 1.496 mm (0.0588 - 0.0589 in.)
Mark 61.496 - 1.499 mm (0.0589 - 0.0590 in.)
Mark 71.499 - 1.502 mm (0.0590 - 0.0591 in.)
Rod bendMaximum per 100 mm (3.94 in.)0.05 mm (0.0020 in.)
Rod twistMaximum per 100 mm (3.94 in.)0.15 mm (0.0059 in.)
Bushing inside diameter22.005 - 22.014 mm (0.8663 - 0.8667 in.)
Piston pin diameter21.997 - 22.006 mm (0.8660 - 0.8664 in.)
Bushing oil clearanceSTD0.005 - 0.011 mm (0.0002 - 0.0004 in.)
Maximum0.05 mm (0.0020 in.)
Connecting rod bolt tension portion diameterSTD7.200 - 7.300 mm (0.2835 - 0.2874 in.)
Maximum7.00 mm (0.2756 in.)
Crankshaft
Thrust clearanceSTD0.020 - 0.220 mm (0.0008 - 0.0087 in.)
Maximum0.30 mm (0.0118 in.)
Thrust washer thicknessSTD2.440 - 2.490 mm (0.0961 - 0.0980 in.)
U/S 0.1252.503 - 2.553 mm (0.0985 - 0.1005 in.)
Main journal bore diameter on cylinder block72.000 - 72.016 mm (2.8347 - 2.8353 in.)
Main journal oil clearanceNo. 1 and No. 5 STD0.028 - 0.046 mm (0.0011 - 0.0018 in.)
Others STD0.040 - 0.058 mm (0.0016 - 0.0023 in.)
No. 1 and No. 5 Maximum0.065 mm (0.0026 in.)
Others Maximum0.065 mm (0.0026 in.)
Main journal diameter66.988 - 67.000 mm (2.6373 - 2.6378 in.)
Main bearing center wall thicknessNo. 1 and No. 5 Mark 32.487 - 2.490 mm (0.0979 - 0.0980 in.)
Mark 42.490 - 2.493 mm (0.0980 - 0.0982 in.)
Mark 52.493 - 2.496 mm (0.0982 - 0.0983 in.)
Mark 62.496 - 2.499 mm (0.0983 - 0.0984 in.)
Mark 72.499 - 2.502 mm (0.0984 - 0.0985 in.)
Other Mark 12.481 - 2.484 mm (0.0977 - 0.0978 in.)
Mark 22.484 - 2.487 mm (0.0978 - 0.0979 in.)
Mark 32.487 - 2.490 mm (0.0979 - 0.0980 in.)
Mark 42.490 - 2.493 mm (0.0980 - 0.0981 in.)
Mark 52.493 - 2.496 mm (0.0981 - 0.0983 in.)
Crank pin diameter51.982 - 52.000 mm (2.0465 - 2.0472 in.)
Circle runoutMaximum0.08 mm (0.0031 in.)
Main journal taper and out-of-roundMaximum0.02 mm (0.0008 in.)
Crank pin taper and out-of-roundMaximum0.02 mm (0.0008 in.)

Engine Mechanical (2UZ-FE) Service Specifications