1KR-FE ENGINE MECHANICAL SERVICE DATA

Ignition timing Connect terminals 13 (TC) and 4 (CG) of the DLC3 Standard 8 to 12°BTDC
Disconnect terminals 13 (TC) and 4 (CG) of the DLC3 -5 to 15°BTDC
Idle speed Standard 730 to 830 rpm
Compression pressure Standard

1550 kPa (15.8 kgf/cm2, 225 psi)

Minimum pressure

1160 kPa (11.9 kgf/cm2, 168 psi)

Difference between each cylinder

147 kPa (1.5 kgf/cm2, 21 psi)

Chain elongation Maximum 114.1 mm (4.49 in.)
Camshaft timing sprocket assembly (with chain) Minimum 96.8 mm (3.811 in.)
Camshaft timing gear (with chain) Minimum 96.8 mm (3.811 in.)
Crankshaft timing sprocket (with chain) Minimum 51.1 mm (2.012 in.)
Timing chain tensioner arm Minimum 0.5 mm (0.0197 in.)
Timing chain guide Minimum 0.5 mm (0.0197 in.)
Camshaft circle runout Maximum 0.03 mm (0.00118 in.)
Camshaft cam lobe height Standard 41.409 to 41.509 mm (1.6303 to 1.6342 in.)
Minimum 41.399 mm (1.6299 in.)
Camshaft journal diameter No. 1 Standard 33.974 to 33.990 mm (1.3376 to 1.3382 in.)
Other Standard 22.949 to 22.965 mm (0.9035 to 0.9041 in.)
No. 2 camshaft circle runout Maximum 0.03 mm (0.00118 in.)
No. 2 camshaft cam lobe height Standard 40.972 to 41.072 mm (1.6131 to 1.6170 in.)
Minimum 40.872 mm (1.6091 in.)
No. 2 camshaft diameter No. 1 journal Standard 25.979 to 25.965 mm (1.0228 to 1.0234 in.)
Other journal Standard 22.949 to 22.995 mm (0.9035 to 0.9041 in.)
Cylinder head set bolt length Standard 121.0 to 122.0 mm (4.7638 to 4.8031 in.)
Maximum 123.5 mm (4.8622 in.)

Straight pin protrusion height

(Oil pan sub-assembly)

Standard 3.0 to 5.0 mm (0.118 to 0.197 in.)
Cylinder head sub-assembly warpage Cylinder block side Maximum 0.05 mm (0.00197 in.)
Intake manifold side Maximum 0.05 mm (0.00197 in.)
Exhaust manifold side Maximum 0.05 mm (0.00197 in.)
Camshaft thrust clearance Standard 0.100 to 0.225 mm (0.00394 to 0.00886 in.)
Maximum 0.240 mm (0.00944 in.)

Camshaft oil clearance

(Intake side)

No. 1 journal Standard 0.025 to 0.061 mm (0.000984 to 0.00240 in.)
Maximum 0.09 mm (0.00354 in.)
Other journals Standard 0.035 to 0.072 mm (0.00138 to 0.00283 in.)
Maximum 0.10 mm (0.00393 in.)

Camshaft oil clearance

(Exhaust side)

No. 1 journal Standard 0.037 to 0.073 mm (0.00146 to 0.00287 in.)
Maximum 0.10 mm (0.00393 in.)
Other journals Standard 0.035 to 0.072 mm (0.00138 to 0.00283 in.)
Maximum 0.10 mm (0.00393 in.)
Inner compression spring Free length Standard 56.75 mm (2.2342 in.)
Deviation Maximum 1.5 mm (0.0591 in.)
Angle Maximum
Intake valve Overall length Standard 88.39 mm (3.4799 in.)
Minimum 87.89 mm (3.4602 in.)
Valve stem diameter Standard 4.970 to 4.985 mm (0.1957 to 0.1963 in.)
Margin thickness Standard 1.0 mm (0.0394 in.)
Minimum 0.5 mm (0.0197 in.)
Valve seat width Standard 1.0 to 1.4 mm (0.0394 to 0.0551 in.)
Exhaust valve Overall length Standard 89.11 mm (3.5083 in.)
Minimum 88.61 mm (3.4886 in.)
Valve stem diameter Standard 4.965 to 4.980 mm (0.1955 to 0.1961 in.)
Margin thickness Standard 1.0 mm (0.0394 in.)
Minimum 0.5 mm (0.0197 in.)
Valve seat width Standard 1.0 to 1.4 mm (0.0394 to 0.0551 in.)
Intake valve guide bush Inside diameter Standard 5.010 to 5.030 mm (0.1972 to 0.1980 in.)
Oil clearance Standard 0.025 to 0.060 mm (0.000984 to 0.00236 in.)
Maximum 0.08 mm (0.00315 in.)
Protrusion height Standard 9.8 to 10.4 mm (0.3858 to 0.4094 in.)
Exhaust valve guide bush Inside diameter Standard 5.010 to 5.030 mm (0.1972 to 0.1980 in.)
Oil clearance Standard 0.030 to 0.065 mm (0.00118 to 0.00256 in.)
Maximum 0.100 mm (0.00394 in.)
Protrusion height Standard 9.4 to 10.0 mm (0.3701 to 0.3937 in.)
Intake valve guide bush bore diameter Standard 9.685 to 9.706 mm (0.3813 to 0.3821 in.)
Exhaust valve guide bush bore diameter Standard 9.685 to 9.706 mm (0.3813 to 0.3821 in.)

Ring pin protrusion height

(Cylinder head sub-assembly)

Standard 4.5 to 5.5 mm (0.177 to 0.217 in.)
Valve stem oil seal depth Intake side Standard 9.7 to 11.3 mm (0.382 to 0.445 in.)
Exhaust side Standard 9.3 to 10.9 mm (0.366 to 0.429 in.)
Connecting rod thrust oil clearance Standard 0.10 to 0.30 mm (0.00394 to 0.0118 in.)
Maximum 0.36 mm (0.0142 in.)
Connecting rod oil clearance Standard 0.025 to 0.065 mm (0.000984 to 0.00255 in.)
Maximum 0.068 mm (0.00268 in.)
Connecting rod large end bore diameter Mark 1 Standard 43.000 to 43.008 mm (1.69291 to 1.69323 in.)
Mark 2 Standard 43.009 to 43.016 mm (1.69326 to 1.69354 in.)
Mark 3 Standard 43.017 to 43.024 (1.69358 to 1.69385 in.)
Connecting rod bearing thickness Mark 1 Standard 1.492 to 1.495 mm (0.05874 to 0.05886 in.)
Mark 2 Standard 1.496 to 1.498 mm (0.05890 to 0.05898 in.)
Mark 3 Standard 1.499 to 1.501 mm (0.05902 to 0.05909 in.)
Crankshaft pin diameter Mark 1, 2, 3 Standard 39.992 to 40.000 mm (1.57449 to 1.57480 in.)
Crankshaft thrust clearance Standard 0.02 to 0.22 mm (0.000787 to 0.00866 in.)
Maximum 0.30 mm (0.0118 in.)
Crankshaft thrust washer upper thickness Standard 1.94 to 1.99 mm (0.0764 to 0.0783 in.)
Cylinder block sub-assembly warpage Maximum 0.05 mm (0.00197 in.)
Cylinder bore diameter Standard 71.000 to 71.013 mm (2.79527 to 2.79578 in.)
Maximum 71.133 mm (2.80051 in.)
Piston diameter Standard 70.943 to 70.953 mm (2.7930 to 2.7934 in.)
Piston oil clearance Standard 0.047 to 0.070 mm (0.00185 to 0.00276 in.)
Maximum 0.100 mm (0.00394 in.)
Piston ring groove clearance No. 1 compression Ring Standard 0.02 to 0.07 mm (0.000787 to 0.00276 in.)
No. 2 compression Ring Standard 0.02 to 0.06 mm (0.000787 to 0.00236 in.)
Oil Ring Standard 0.07 to 0.15 mm (0.00276 to 0.00591 in.)
Piston ring end gap No. 1 compression Ring Standard 0.15 to 0.20 mm (0.00591 to 0.00787 in.)
Maximum 0.40 mm (0.0157 in.)
No. 2 compression Ring Standard 0.40 to 0.50 mm (0.0157 to 0.0197 in.)
Maximum 0.70 mm (0.0276 in.)
Oil Ring Standard 0.10 to 0.40 mm (0.00394 to 0.0157 in.)
Maximum 0.69 mm (0.0272 in.)
Connecting rod bolt diameter Standard 6.6 to 7.7 mm (0.260 to 0.264 in.)
Minimum 6.4 mm (0.252 in.)
Crankshaft circle runout Maximum 0.04 mm (0.00157 in.)
Crankshaft journal diameter Standard 43.988 to 44.000 mm (1.7318 to 1.7323 in.)
Crankshaft journal diameter Mark 1 Standard 43.995 to 44.000 (1.73208 to 1.73228 in.)
Mark 2 Standard 43.988 to 43.994 (1.73180 to 1.73204 in.)
Crankshaft journal for taper and out-of-round Maximum 0.003 mm (0.000118 in.)
Crankshaft pin diameter Standard 39.992 to 40.000 mm (1.5745 to 1.5748 in.)
Crankshaft pin for taper and out-of-round Maximum 0.003 mm (0.000118 in.)
Crankshaft bearing cap set bolt length Standard 67.0 to 68.0 mm (2.64 to 2.68 in.)
Minimum 68.5 mm (2.70 in.)
Crankshaft bearing cap set bolt diameter Standard 9.94 to 9.96 mm (0.3913 to 0.3921 in.)
Minimum 9.60 mm (0.3780 in.)
Crankshaft oil clearance Standard 0.018 to 0.047 mm (0.000709 to 0.00185 in.)
Maximum 0.050 mm (0.00197 in.)
Cylinder block journal bore diameter Mark 1 Standard 48.000 to 48.006 mm (1.88976 to 1.89000 in.)
Mark 2 Standard 48.007 to 48.012 (1.89004 to 1.89023 in.)
Mark 3 Standard 48.013 to 48.018 (1.89027 to 1.89047 in.)
Crankshaft main bearing center wall thickness Mark 2 Standard 1.995 to 1.997 mm (0.07854 to 0.07862 in.)
Mark 3 Standard 1.998 to 2.000 mm (0.07866 to 0.07874 in.)
Mark 4 Standard 2.001 to 2.003 mm (0.07878 to 0.07886 in.)
Mark 5 Standard 2.004 to 2.006 mm (0.07890 to 0.07898 in.)

Ring pin protrusion height

(Cylinder block sub-assembly)

Standard 6.0 to 7.0 mm (0.236 to 0.276 in.)

Straight pin protrusion height

(Cylinder block sub-assembly)

Pin A Standard 7.0 to 8.0 mm (0.276 to 0.315 in.)
Pin B Standard 8.0 to 9.0 mm (0.315 to 0.354 in.)