1NZ-FE ENGINE MECHANICAL SERVICE DATA

Ignition timing 8 to 12 °BTDC
Idle speed Standard 680 to 780 rpm
Compression pressure

980 kPa (10.0 kgf/cm2142 psi)

Minimum pressure

784 kPa (8.0 kgf/cm2114 psi)

Difference between each cylinder

98 kPa (1.0 kgf/cm214 psi) or less

Valve clearance (cold)

Intake

Exhaust

0.15 to 0.25 mm (0.006 to 0.010 in.)

0.25 to 0.35 mm (0.010 to 0.014 in.)

Chain elongation Maximum 123.2 mm (4.850 in.)
Camshaft timing gear diameter (w/ chain) Minimum 96.2 mm (3.787 in.)
Camshaft timing sprocket diameter (w/ chain) Minimum 96.2 mm (3.787 in.)
Chain tensioner slipper thickness Maximum 1.0 mm (0.039 in.)
Chain vibration damper thickness Maximum 1.0 mm (0.039 in.)
Cylinder head set bolt length

Standard

Maximum

143.5 mm (5.6496 in.)

145 mm (5.7087 in.)

Cylinder head warpage Maximum

0.05 mm (0.0020 in.) Cylinder block side

0.10 mm (0.0039 in.) Intake manifold side

0.10 mm (0.0039 in.) Exhaust manifold side

Intake valve overall length

Standard

Minimum

102.15 mm (4.0217 in.)

101.85 mm (4.0098 in.)

Intake valve stem diameter Standard 5.465 to 5.480 mm (0.2152 to 0.2153 in.)
Intake valve margin thickness

Standard

Minimum

1.0 mm (0.039 in.)

0.5 mm (0.020 in.)

Exhaust valve overall length

Standard

Minimum

103.3 mm (4.0669 in.)

103.0 mm (4.0551 in.)

Exhaust valve stem diameter Standard 5.465 to 5.480 mm (0.2152 to 0.2153 in.)
Exhaust valve margin thickness

Standard

Minimum

1.15 mm (0.045 in.)

0.5 mm (0.020 in.)

Valve spring free length Standard 49.22 to 51.22 mm (1.9378 to 2.0165 in.)
Valve spring deviation Maximum 1.6 mm (0.063 in.)
Valve spring angle (reference) Maximum
Valve spring installed tension Standard 168 to 185 N (17.1 to 18.9 kgf, 37.7 to 41.7 lbf) at 36.5 mm (1.437 in.)
Valve spring working tension Maximum 313 to 347N (31.9 to 35.4 kgf, 70.4 to 78 lbf) at 27 mm (1.063 in.)
Bushing inside diameter 5.510 to 5.530 mm (0.2169 to 0.2177 in.)
Valve guide bushing oil clearance

Standard intake

Standard exhaust

0.025. to 0.060 mm (0.0010 to 0.0024 in.)

0.030. to 0.065 mm (0.0012 to 0.0026 in.)

Maximum intake

Maximum exhaust

0.08 mm (0.0032 in.)

0.10 mm (0.039 in.)

Bushing protrusion height 9.4 to 9.8 mm (0.370 to 0.386 in.)
Valve guide bush inside diameter 10.285 to 10.306 mm (0.4050 to 0.4057 in.)
Camshaft circle runout Maximum 0.03 mm (0.0012 in.)
Camshaft cam lobe height

Standard

Minimum

41.640 to 41.740 mm (1.6394 to 1.6433 in.)

41.540 mm (1.6354 in.)

Camshaft No. 1 journal 34.449 to 34.465 mm (1.3563 to 1.3569 in.)
Other journal 22.959 to 22.975 mm (0.9038 to 0.9045 in.)
No. 2 camshaft circle runout Maximum 0.03 mm (0.0012 in.)
No. 2 camshaft cam lobe height

Standard

Minimum

40.793 to 40.893 mm (1.6060 to 1.6100 in.)

40.693 mm (1.6021 in.)

No. 2 camshaft No. 1 journal 34.449 to 34.465 mm (1.3563 to 1.3569 in.)
Other journal 22.959 to 22.975 mm (0.9038 to 0.9045 in.)
Camshaft thrust clearance

Standard

Maximum

0.040 to 0.095 mm (0.0016 to 0.0037 in.)

0.11 mm (0.0043 in.)

Camshaft oil clearance

Standard

Maximum

0.035 to 0.072mm (0.0014 to 0.0028 in.)

0.08 mm (0.0031 in.)

Camshaft bearing cap setting ring pin protrusion height 4.5 to 5.5 mm (0.177 to 0.217 in.)
Connecting rod thrust clearance

Standard

Maximum

0.16 to 0.36 mm (0.0063 to 0.0142 in.)

0.36 mm (0.0142 in.)

Connecting rod oil clearance

Standard

Maximum

0.012 to 0.034 mm (0.00047 to 0.0013 in.)

0.054 mm (0.0022 in.)

Crankshaft thrust clearance

Standard

Maximum

0.09 to 0.19 mm (0.0035 to 0.0075 in.)

0.30 mm (0.0118 in.)

Cylinder block warpage Maximum 0.05 mm (0.0020 in.)
Cylinder bore diameter

Standard

Maximum

75.000 to 75.013 mm (2.9528 to 2.9533 in.)

75.133 mm (2.9580 in.)

Piston diameter 74.965 to 74.995 mm (2.9514 to 2.9526 in.)
Piston pin hole diameter at 20°C (68°F) 18.013 to 18.016 mm (0.7092 to 0.7093 in.) at 20°C (68°F)
Piston pin diameter 18.001 to 18.004 mm (0.7087 to 0.7088 in.)
Piston pin oil clearance

Standard

Maximum

0.009 to 0.015 mm (0.0004 to 0.0006 in.)

0.050 mm (0.0020 in.)

Piston clearance

Standard

Maximum

0.005 to 0.048 mm (0.00020 to 0.00189 in.)

0.168 mm (0.0066 in.)

Connecting rod inside diameter Standard 17.965 to 17.985 mm (0.707 to 0.708 in.)
Piston ring groove clearance

No. 1

No. 2

Oil

0.02 to 0.07 mm (0.0008 to 0.0028 in.)

0.02 to 0.06 mm (0.0008 to 0.0024 in.)

0.07 to 0.13 mm (0.028 to 0.0052 in.)

Piston ring end gap

Standard No. 1

No. 2

Oil (Side rail)

Maximum No. 1

No. 2

Oil (Side rail)

0.20 to 0.30 mm (0.0078 to 0.0117 in.)

0.35 to 0.50 mm (0.0138 to 0.0197 in.)

0.10 to 0.35 mm (0.0039 to 0.0138 in.)

0.49 mm (0.0191 in.)

1.06 mm (0.0417 in.)

0.82 mm (0.0323 in.)

Connecting rod bolt diameter

Standard

Maximum

6.6 to 6.7 mm (0.260 to 0.264 in.)

6.4 mm (0.252 in.)

Crankshaft circle runout Maximum 0.03 mm (0.0012 in.)
Crankshaft main journal diameter 45.988 to 46.000 mm (1.8106 to 1.8110 in.)
Crankshaft main journal taper and out-of-round Maximum 0.02 mm (0.0008 in.)
Crank pin diameter 39.992 to 40.000 mm (1.5745 to 1.5748 in.)
Crank pin taper and out-of- round Maximum 0.02 mm (0.0008 in.)
Crankshaft timing sprocket diameter (w/ chain)

Standard

Minimum

51.72 mm (2.0362 in.)

50.5 mm (1.988 in.)

Crankshaft bearing cap set bolt diameter

Standard

Minimum

7.3 to 7.5 mm (0.287 to 0.295 in.)

7.2 mm (0.283 in.)

Crankshaft oil clearance

Standard

Maximum

0.01 to 0.026 mm (0.0004 to 0.00102 in.)

0.07 mm (0.0028 in.)

Straight pin standard protrusion

Pin A

Pin B

Pin C

Pin D

8.5 to 9.5 mm(0.335 to 0.374 in.)

8.5 to 9.5 mm (0.335 to 0.374 in.)

18.5 to 19.5 mm (0.728 to 0.768 in.)

11.5 to 12.5 mm (0.453 to 0.492 in.)

Oil pump set ring pin standard protrusion 3.5 to 4.5 mm (0.138 to 0.177 in.)