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Toyota Supra JZA80

Engine mechanical (2JZ-GE)

Service data

Compression pressure at 250 rpm STD 1,275 kPa (13.0 kgf/cm 2 , 185 psi) or more
Minimum 1,079 kPa (11.0 kgf/cm 2 , 156 psi)
Difference of pressure between each cylinder 98 kPa (1.0 kgf/cm 2 , 14 psi) or less
Valve clearance at cold Intake 0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust 0.25 - 0.35 mm (0.010 - 0.014 in.)
Adjusting shim (for repair part) Mark 2.500 2.500 mm (0.0984 in.)
Mark 2.550 2.550 mm (0.1004 in.)
Mark 2.600 2.600 mm (0.1024 in.)
Mark 2.650 2.650 mm (0.1043 in.)
Mark 2.700 2.700 mm (0.1063 in.)
Mark 2.750 2.750 mm (0.1083 in.)
Mark 2.800 2.800 mm (0.1102 in.)
Mark 2.850 2.850 mm (0.1122 in.)
Mark 2.900 2.900 mm (0.1142 in.)
Mark 2.950 2.950 mm (0.1161 in.)
Mark 3.000 3.000 mm (0.1181 in.)
Mark 3.050 3.050 mm (0.1201 in.)
Mark 3.100 3.100 mm (0.1220 in.)
Mark 3.150 3.150 mm (0.1240 in.)
Mark 3.200 3.200 mm (0.1260 in.)
Mark 3.250 3.250 mm (0.1280 in.)
Mark 3.300 3.300 mm (0.1299 in.)
Ignition timing w/ Terminals TE1 and E1 connected of DLC1 10° BTDC @ idle
Idle speed 700 ± 50 rpm
Timing belt tensioner Protrusion (from housing side) 8.0 - 8.8 mm (0.315 - 0.346 in.)
Cylinder head Warpage
Cylinder block side Maximum 0.10 mm (0.0039 in.)
Intake manifold side Maximum 0.10 mm (0.0039 in.)
Exhaust manifold side Maximum 0.10 mm (0.0039 in.)
Valve guide bore diameter STD 10.985 - 11.006 mm (0.4325 - 0.4333 in.)
O/S 0.05 11.035 - 11.056 mm (0.4344 - 0.4353 in.)
Valve seat
Refacing angle 15°, 45°, 75°
Contacting angle 45°
Contacting width Intake 1.0 - 1.4 mm (0.039 - 0.055 in.)
Exhaust 1.2 - 1.6 mm (0.047 - 0.063 in.)
Cylinder head bolt diameter STD 10.8 - 11.0 mm (0.425 - 0.433 in.)
Minimum 10.7 mm (0.421 in.)
Valve guide bushing Inside diameter 6.010 - 6.030 mm (0.2366 - 0.2374 in.)
Outside diameter (for repair part) 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.)
Valve Valve overall length STD Intake 98.29 - 98.79 mm (3.8697 - 3.8894 in.)
Exhaust 98.84 - 99.34 mm (3.8913 - 3.9110 in.)
Minimum Intake 98.19 mm (3.8657 in.)
Exhaust 98.74 mm (3.8874 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.)
Valve (cont’d) 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.)
Maximum Intake 0.08 mm (0.0031 in.)
Exhaust 0.10 mm (0.0039 in.)
Margin thickness STD 0.8 - 1.2 mm (0.031 - 0.047 in.)
Minimum 0.5 mm (0.020 in.)
Valve spring Deviation Maximum 2.0 mm (0.079 in.)
Free length 41.70 mm (1.6417 in.)
Installed tension at 34.5 mm (1.358 in.) 186.2 - 206.0 N (19.0 - 21.0 kgf, 42 - 46 lbf)
Valve lifter Lifter diameter 30.966 - 30.976 mm (1.2191 - 1.2195 in.)
Lifter bore diameter 31.000 - 31.016 mm (1.2205 - 1.2211 in.)
Oil clearance STD 0.024 - 0.050 mm (0.0009 - 0.0020 in.)
Maximum 0.07 mm (0.0028 in.)
Camshaft Thrust clearance STD 0.080 - 0.190 mm (0.0031 - 0.0075 in.)
Maximum 0.30 mm (0.0118 in.)
Cam lobe height STD Intake 44.570 - 44.670 mm (1.7547 - 1.7587 in.)
Exhaust 44.770 - 44.870 mm (1.7626 - 1.7665 in.)
Maximum Intake 44.42 mm (1.7488 in.)
Exhaust 44.62 mm (1.7567 in.)
Journal diameter 28.949 - 28.965 mm (1.1397 - 1.1404 in.)
Journal oil clearance STD 0.035 - 0.072 mm (0.0014 - 0.0028 in.)
Maximum 0.10 mm (0.0039 in.)
Circle runout Maximum 0.08 mm (0.0031 in.)
Air intake chamber Warpage Maximum 0.15 mm (0.0059 in.)
Manifold Warpage Maximum Intake 0.15 mm (0.0059 in.)
Exhaust 0.50 mm (0.0196 in.)
Cylinder block Cylinder head surface warpage Maximum 0.07 mm (0.0028 in.)
Cylinder bore diameter STD 86.000 - 86.013 mm (3.3858 - 3.3863 in.)
Maximum 86.02 mm (3.3866 in.)
Main bearing bolt diameter STD 9.96 - 9.97 mm (0.3921 - 0.3925 in.)
Minimum 9.7 mm (0.382 in.)
Connecting rod Thrust clearance STD 0.250 - 0.402 mm (0.0098 - 0.0158 in.)
Maximum 0.50 mm (0.0197 in.)
Connecting bolt diameter STD 8.1 - 8.3 mm (0.319 - 0.327 in.)
Minimum 8.0 mm (0.315 in.)
Connecting rod oil clearance STD STD 0.023 - 0.041 mm (0.0009 - 0.0016 in.)
U/S 0.25 0.008 - 0.066 mm (0.0011 - 0.0026 in.)
Maximum STD 0.07 mm (0.0027 in.)
U/S 0.25 0.08 mm (0.0031 in.)
Connecting rod bearing center wall thickness (Reference) STD Mark 1 1.498 - 1.501 mm (0.0590 - 0.0591 in.)
Mark 2 1.501 - 1.504 mm (0.0591 - 0.0592 in.)
Mark 3 1.504 - 1.507 mm (0.0592 - 0.0593 in.)
Mark 4 1.507 - 1.510 mm (0.0593 - 0.0594 in.)
Mark 5 1.510 - 1.513 mm (0.0594 - 0.0596 in.)
Bushing inside diameter 22.005 - 22.014 mm (0.8663 - 0.8667 in.)
Piston pin diameter 21.997 - 22.006 mm (0.8660 - 0.8664 in.)
Piston pin oil clearance STD 0.005 - 0.011 mm (0.0002 - 0.0004 in.)
Maximum 0.05 mm (0.0020 in.)
Rod bent Maximum per 100 mm (3.94 in.) 0.05 mm (0.0020 in.)
Rod twist Maximum per 100 mm (3.94 in.) 0.15 mm (0.0059 in.)
Piston and Piston ring Piston diameter 85.935 - 85.945 mm (3.3833 - 3.3837 in.)
Piston oil clearance STD 0.055 - 0.078 mm (0.0022 - 0.0031 in.)
Maximum 0.10 mm (0.0039 in.)
Piston ring groove clearance No.1 0.011 - 0.070 mm (0.0004 - 0.0028 in.)
No.2 0.030 - 0.070 mm (0.0012 - 0.0028 in.)
Piston ring end gap STD No.1 0.300 - 0.470 mm (0.0118 - 0.0185 in.)
No.2 0.350 - 0.520 mm (0.0138 - 0.0205 in.)
Oil 0.130 - 0.450 mm (0.0051 - 0.0177 in.)
Maximum No.1 1.07 mm (0.0421 in.)
No.2 1.12 mm (0.0441 in.)
Oil 1.05 mm (0.0413 in.)
Crankshaft Thrust clearance STD 0.020 - 0.220 mm (0.0008 - 0.0087 in.)
Maximum 0.30 mm (0.0118 in.)
Thrust washer thickness STD 1.940 - 1.990 mm (0.0764-0.0783 in.)
Main journal oil clearance STD STD 0.026 - 0.040 mm (0.0010-0.0016 in.)
U/S 0.25 0.025 - 0.061 mm (0.0010-0.0024 in.)
Maximum STD 0.06 mm (0.0024 in.)
U/S 0.25 0.08 mm (0.0031 in.)
Main journal diameter STD 61.984 - 62.000 mm (2.4403 - 2.4409 in.)
U/S 0.25 61.745 - 61.755 mm (2.4309 - 2.4313 in.)
Main bearing center wall thickness (Reference) Mark 1 1.994 - 1.997 mm (0.0785 - 0.0786 in.)
Mark 2 1.997 - 2.000 mm (0.0786 - 0.0787 in.)
Mark 3 2.000 - 2.003 mm (0.0787 - 0.0789 in.)
Mark 4 2.003 - 2.006 mm (0.0789 - 0.0790 in.)
Mark 5 2.006 - 2.009 mm (0.0790 - 0.0791 in.)
Crank pin diameter STD 51.982 - 52.000 mm (2.0465 - 2.0472 in.)
U/S 0.25 51.745 - 51.755 mm (2.0372 - 2.0376 in.)
Circle runout Maximum 0.06 mm (0.0024 in.)
Main journal taper and out-of-round Maximum 0.02 mm (0.0008 in.)
Crank pin taper and out-of-round Maximum 0.02 mm (0.0008 in.)

Torque specification

Part tightened N·m kgf·cm ft·lbf
Cylinder head cover x Cylinder head 8.3 85 74 in.·lbf
Timing belt plate x Oil pump 7.8 80 69in.·lbf
Idler pulley x Oil pump 34 350 25
Crankshaft pulley x Crankshaft 324 3,300 239
Camshaft timing pulley x Camshaft 79 810 59
Timing belt tensioner x Oil pump 26 270 20
PS pump front bracket x PS vane pump 58 590 43
PS pump front bracket x A/C compressor 52 530 38
PS pump pulley x PS vane pump 43 430 32
Drive belt tensioner x Cylinder head 21 210 15
EGR cooler x Cylinder head 8.8 90 78 in.·lbf
ECT sensor x Cylinder head 25 250 18
ECT sensor gauge x Cylinder head 15 150 11
Engine hanger x Cylinder head 39 400 29
Cylinder head x Cylinder block 1st 34 350 25
2nd Turn 90° Turn 90° Turn 90°
3rd Turn 90° Turn 90° Turn 90°
Camshaft bearing cap x Cylinder head 20 200 14
No.4 timing belt cover x Cylinder head 7.8 80 69 in.·lbf
Intake manifold x Cylinder head 27 280 20
Fuel input pipe x Delivery pipe 42 420 30
Intake manifold stay x Intake manifold, Cylinder block 39 400 29
Water outlet x Cylinder head 21 210 15
Air intake chamber x Intake manifold 27 280 20
Vacuum control valve set x Intake manifold 21 210 15
No.2 vacuum pipe x Air intake chamber 27 280 20
No.2 vacuum pipe x Intake manifold 27 280 20
Air intake chamber stay x Cylinder head 18 185 13
Air intake chamber stay x Air intake chamber 18 185 13
PS pump rear stay x PS pump bracket 39 400 29
PS pump rear stay x Intake manifold stay 39 400 29
PS vane pump x PS pump bracket 58 590 43
Exhaust manifold x Cylinder head 39 400 29
Main bearing cap x Cylinder block 1st 44 450 33
2nd Turn 90° Turn 90° Turn 90°
Connecting rod cap x Connecting rod 1st 29 300 22
2nd Turn 90° Turn 90° Turn 90°
Rear oil seal retainer x Cylinder block 5.9 60 52 in.·lbf
Crankshaft position sensor x Cylinder block 8.8 90 78 in.·lbf
Engine mounting bracket x Cylinder block 58 590 43
Engine coolant drain plug x Cylinder block 29 300 22
Union nut x Cylinder block 55 550 41
Oil pressure switch x Cylinder block 14 150 11
Knock sensor x Cylinder block 44 450 33
Fuel pipe support x Cylinder block 28 290 21
Oil filter bracket x Cylinder block 88 900 65
No.2 water bypass pipe x Water pump, Cylinder block 21 210 15
Flywheel (M/T) x x Crankshaft 1st 49 500 36
2nd Turn 90° Turn 90° Turn 90°
Drive plate (A/T) x Crankshaft 83 850 61
Clutch cover x Flywheel M/T 19 195 14
Cylinder block x Transmission 14 mm head 39 400 29
17 mm head 72 730 43
Drive plate x Torque converter clutch A/T 33 340 25
Oil cooler tube x Union for transmission A/T 34 350 25
Rear support member x Body 25 260 19
Rear support member x Engine rear mounting insulator 13 135 10
Front suspension crossmember x Engine mounting insulator 59 600 43
Transmission shift lever x Shift lever retainer M/T 19 195 14
Transmission control rod x Shift lever A/T 13 130 9
No.2 front exhaust pipe x Exhaust manifold 62 630 46
Pipe support bracket x Transmission 43 440 32
No.2 front exhaust pipe x Front exhaust pipe 58 590 43
Clutch release cylinder x Transmission M/T 13 130 9
Ground strap (M/T) x Transmission 37 380 27
A/C compressor x Cylinder block Stud bolt 26 265 19
Bolt and nut 52 530 38
PS pump bracket x A/C compressor 58 590 43
PS pump bracket x Cylinder block 39 400 29
Fuel inlet hose x Fuel pipe support 29 300 22
Front exhaust pipe x Center exhaust pipe 58 590 43
Center exhaust pipe x Tailpipe 19 195 14
Heated oxygen sensor x Front exhaust pipe 20 200 14
This guide is based on the book edition Toyota (RM502U, 1997)

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