1NZ-FE ENGINE MECHANICAL SERVICE DATA

New V belt deflection 7.0 to 8.5 mm (0.28 to 0.33 in.)
Used V belt deflection 11.0 to 13.0 mm (0.43 to 0.51 in.)
New V belt tension 539 to 637 N (55 to 65 kg, 121 to 143 lb)
Used V belt tension 245 to 392 N (25 to 40 kg, 55 to 88 lb)
Ignition timing 8 to 12 °BTDC
Idle speed Standard 550 to 650 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.)

144.2 mm (5.6772 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

89.25 mm (3.5138 in.)

88.75 mm (3.4941 in.)

Intake valve stem diameter Standard 4.970 to 4.985 mm (0.1957 to 0.1963 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

87.90 mm (3.4606 in.)

87.40 mm (3.4409 in.)

Exhaust valve stem diameter Standard 4.965 to 4.980 mm (0.1955 to 0.1961 in.)
Exhaust valve margin thickness

Standard

Minimum

1.15 mm (0.045 in.)

0.5 mm (0.020 in.)

Valve spring free length Standard 45.05 to 45.15 mm (1.774 to 1.778 in.)
Valve spring deviation Maximum 1.6 mm (0.063 in.)
Valve spring angle (reference) Maximum
Valve spring installed tension Standard 149 to 165 N (15.2 to 16.8 kgf, 33.5 to 37.1 lbf) at 32.5 mm (1.280 in.)
Valve spring working tension Maximum 286 to 316N (29.1 to 32.2 kgf, 64.2 to 71.0 lbf) at 23.9 mm (0.941 in.)
Bushing inside diameter 5.010 to 5.030 mm (0.1972 to 0.1980 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.)

Valve guide bush diameter

Standard

O/S

9.685 to 9.706 mm (0.3813 to 0.3821 in.)

9.735 to 9.755 mm (0.3833 to 0.3841 in.)

Bushing protrusion height 9.0 to 9.4 mm (0.354 to 0.370 in.)
Lifter diameter Standard 30.966 to 30.976 mm (1.2191 to 1.2195 in.)
Valve guide bush inside diameter 9.685 to 9.706 mm (0.3813 to 0.3821 in.)
Lifter bore diameter Standard 31.000 to 31.025 mm (1.2205 to 1.2215 in.)
Lifter oil clearance

Standard

Maximum

0.024 to 0.059 mm (0.0009 to 0.0023 in.)

0.1 mm (0.0039 in.)

Camshaft circle runout Maximum 0.03 mm (0.0012 in.)
Camshaft cam lobe height

Standard

Minimum

44.617 to 44.717 mm (1.7566 to 1.7605 in.)

43.16 mm (1.6962 in.)

Camshaft No. 1 journal 34.449 to 34.465 mm (1.3563 to 1.3569 in.)
Other journal 22.949 to 22.965 mm (0.9035 to 0.9041 in.)
No. 2 camshaft circle runout Maximum 0.03 mm (0.0012 in.)
No. 2 camshaft cam lobe height

Standard

Minimum

44.666 to 44.766 mm (1.7585 to 1.7624 in.)

44.52 mm (1.7528 in.)

No. 2 camshaft No. 1 journal 34.449 to 34.465 mm (1.3563 to 1.3569 in.)
Other journal 22.949 to 22.965 mm (0.9035 to 0.9041 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 8.5 to 9.5 mm (0.335 to 0.374 in.)
Connection 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 0.038 mm (0.00047 to 0.0015 in.)

0.058 mm (0.0028 in.)

Crankshaft thrust clearance

Standard

Maximum

0.09 to 0.19 mm (0.0035 to 0.0075 in.)

0.03 mm (0.0118 in.)

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

Standard

Difference limit

75.000 to 75.013 mm (2.9528 to 2.9533 in.)

0.10 mm (0.0039 in.)

Piston diameter 74.935 to 74.945 mm (2.9502 to 2.9506 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

0.045 to 0.068 mm (0.0018 to 0.0027 in.)

0.08 mm (0.0032 in.)

Connecting misalignment Maximum 0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
Connecting rod twist Maximum 0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
Piston ring groove clearance

No. 1

No. 2

0.03 to 0.07 mm (0.0012 to 0.0028 in.)

0.02 to 0.06 mm (0.0008 to 0.0024 in.)

Piston ring end gap

Standard No. 1

No. 2

Oil (Side rail)

Maximum No. 1

No. 2

Oil (Side rail)

0.25 to 0.35 mm (0.0098 to 0.0138 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.)

0.91 mm (0.0358 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 0.023 mm (0.0004 to 0.0009 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.)