Engine Mechanical (Service Specifications): Other

SERVICE DATA [03/2012 - ]

Ignition timing	Terminals TC and CG of DLC3 connected	8 to 12° BTDC at idle (Transmission in park)
Ignition timing	Terminals TC and CG of DLC3 disconnected	8 to 18° BTDC at idle (Transmission in park)
Idle speed		950 to 1050 rpm (Transmission in park)
Compression	Compression pressure	1000 kPa (10.2 kgf/cm 2 , 145 psi) or higher
	Minimum pressure	700 kPa (7.1 kgf/cm 2 , 102 psi)
	Difference between each cylinder	200 kPa (2.0 kgf/cm 2 , 29 psi) or less

ENGINE

Camshaft	Circuit runout	Maximum	0.04 mm (0.00157 in.)
	Cam lobe height	Intake	Standard	44.318 to 44.418 mm (1.7448 to 1.7487 in.)
		Intake	Maximum	44.168 mm (1.7389 in.)
		Exhaust	Standard	44.341 to 44.441 mm (1.7457 to 1.7496 in.)
		Exhaust	Maximum	44.191 mm (1.7398 in.)
	Journal diameter	No. 1 journal	Standard	35.946 to 35.960 mm (1.4152 to 1.4157 in.)
	Journal diameter	Other journals	Standard	25.959 to 25.975 mm (1.0220 to 1.0226 in.)
	For Bank 1: Oil clearance	No. 1 journal	Standard	0.032 to 0.071 mm (0.00122 to 0.00280 in.)
		No. 1 journal	Maximum	0.10 mm (0.00394 in.)
		No. 2, 3, 4 journals	Standard	0.025 to 0.062 mm (0.000984 to 0.00240 in.)
		No. 5 journal	Standard	0.015 to 0.052 mm (0.000591 to 0.00205 in.)
		Other journals	Maximum	0.09 mm (0.00354 in.)
	For Bank 2: Oil clearance	No. 1 journal	Standard	0.032 to 0.071 mm (0.00122 to 0.00280 in.)
		No. 1 journal	Maximum	0.10 mm (0.00394 in.)
		Other journals	Standard	0.025 to 0.062 mm (0.000984 to 0.00240 in.)
		Other journals	Maximum	0.09 mm (0.00354 in.)
Cylinder head set bolt	Length	Standard	141.3 to 142.7 mm (5.56 to 5.62 in.)
	Length	Maximum	143.7 mm (5.66 in.)
	Diameter	Standard	10.80 to 11.00 mm (0.425 to 0.433 in.)
	Diameter	Minimum	10.70 mm (0.421 in.)
Chain	Elongation	Maximum	136.9 mm (5.39 in.)
No. 2 chain	Elongation	Maximum	137.6 mm (5.42 in.)
Crankshaft timing gear or sprocket	Diameter (w/ Chain)	Minimum	61.4 mm (2.42 in.)
Idle sprocket	Diameter (w/ Chain)	Minimum	61.4 mm (2.42 in.)
Idle gear shaft	Idle gear shaft diameter	Standard	22.987 to 23.000 mm (0.905 to 0.906 in.)
	Idle gear inside diameter	Standard	23.020 to 23.030 mm (0.906 to 0.907 in.)
	Oil clearance	Standard	0.020 to 0.043 mm (0.000787 to 0.00169 in.)
	Oil clearance	Maximum	0.093 mm (0.00366 in.)
No. 2 chain tensioner assembly	Worn depth	Maximum	0.9 mm (0.0354 in.)
No. 3 chain tensioner assembly	Worn depth	Maximum	0.9 mm (0.0354 in.)
Chain tensioner slipper	Worn depth	Maximum	1.0 mm (0.0394 in.)
No. 1 chain vibration damper	Worn depth	Maximum	1.0 mm (0.0394 in.)
No. 2 chain vibration damper	Worn depth	Maximum	1.0 mm (0.0394 in.)
Exhaust manifold sub-assembly	Warpage	Maximum	0.70 mm (0.0276 in.)
Intake Manifold	Warpage	Maximum	0.10 mm (0.00394 in.)

ENGINE UNIT

Cylinder head sub-assembly	Warpage	Standard	Cylinder Block Side	0 to 0.05 mm (0 to 0.00197 in.)
		Standard	Intake Side	0 to 0.08 mm (0 to 0.00315 in.)
		Standard	Exhaust Side	0 to 0.08 mm (0 to 0.00315 in.)
		Maximum	0.10 mm (0.00394 in.)
Intake valve	Valve stem diameter	Standard	5.470 to 5.485 mm (0.215 to 0.216 in.)
	Margin thickness	Standard	1.0 mm (0.0394 in.)
	Margin thickness	Maximum	0.5 mm (0.0197 in.)
	Overall length	Standard	105.85 mm (4.17 in.)
	Overall length	Maximum	105.35 mm (4.15 in.)
Exhaust valve	Valve stem diameter	Standard	5.465 to 5.480 mm (0.215 to 0.216 in.)
	Margin thickness	Standard	1.0 mm (0.0394 in.)
	Margin thickness	Maximum	0.5 mm (0.0197 in.)
	Overall length	Standard	110.40 mm (4.35 in.)
	Overall length	Maximum	109.90 mm (4.33 in.)
Inner compression spring	Free length		48.05 mm (1.89 in.)
	Deviation	Maximum	1.0 mm (0.0394 in.)
	Angle (reference)	Maximum	2°
Intake valve guide bush	Bush inside diameter	Standard	5.510 to 5.530 mm (0.217 to 0.218 in.)
	Oil clearance	Standard	0.030 to 0.060 mm (0.00118 to 0.00236 in.)
	Oil clearance	Maximum	0.08 mm (0.00315 in.)
	Bush bore diameter	Use STD	10.285 to 10.306 mm (0.4049 to 0.4057 in.)
	Bush bore diameter	Use O/S 0.05	10.335 to 10.356 mm (0.4069 to 0.4077 in.)
	Protrusion height	Standard	9.1 to 9.9 mm (0.358 to 0.390 in.)
Exhaust valve guide bush	Bush inside diameter	Standard	5.510 to 5.530 mm (0.217 to 0.218 in.)
	Oil clearance	Standard	0.025 to 0.065 mm (.0.000984 to 0.00256 in.)
	Oil clearance	Maximum	0.01 mm (0.000394 in.)
	Bush bore diameter	Use STD	10.285 to 10.306 mm (0.4049 to 0.4057 in.)
	Bush bore diameter	Use O/S 0.05	10.335 to 10.356 mm (0.4069 to 0.4077 in.)
	Protrusion height	Standard	9.1 to 9.9 mm (0.358 to 0.390 in.)
Camshaft	Thrust clearance	Standard	0.08 to 0.13 mm (0.00315 to 0.00512 in.)
Camshaft	Thrust clearance	Maximum	0.15 mm (0.00591 in.)
Ring pin for cylinder head sub-assembly	Protrusion height	Standard	2.5 to 3.8 mm (0.0984 to 0.150 in.)
Straight pin for cylinder head sub-assembly	Protrusion height	Standard	17.5 to 19.5 mm (0.689 to 0.768 in.)

CYLINDER HEAD

Connecting rod thrust clearance		Standard	0.15 to 0.40 mm (0.00591 to 0.0157 in.)
Connecting rod thrust clearance		Maximum	0.50 mm (0.0197 in.)
Connecting rod oil clearance		Standard	0.032 to 0.052mm (0.00126 to 0.00205 in.)
Connecting rod oil clearance		Maximum	0.070 mm (0.00276 in.)
Connecting rod diameter		Mark 1	56.000 to 56.006 mm (2.20472 to 2.20496 in.)
		Mark 2	56.006 to 56.012 mm (2.20496 to 2.20519 in.)
		Mark 3	56.012 to 56.018 mm (2.20519 to 2.20543 in.)
		Mark 4	56.018 to 56.024 mm (2.20543 to 2.20566 in.)
Connecting rod beating center wall thickness		Mark 1	1.481 to 1.484 mm (0.05831 to 0.05843 in.)
		Mark 2	1.484 to 1.487 mm (0.05843 to 0.05854 in.)
		Mark 3	1.487 to 1.490 mm (0.05854 to 0.05866 in.)
		Mark 4	1.490 to 1.493 mm (0.05866 to 0.05878 in.)
Crankshaft pin diameter		Standard	52.992 to 53.000 mm (2.0863 to 2.0866 in.)
Cylinder block warpage		Standard	0 to 0.05 mm (0 to 0.00197 in.)
Cylinder block warpage		Maximum	0.07 mm (0.00276 in.)
Cylinder bore diameter		Standard	94.000 to 94.012 mm (3.7008 to 3.7013 in.)
Cylinder bore diameter		Maximum	94.200 mm (3.7087 in.)
Piston diameter		Distance	8.7 mm (0.3425 in.)
		Standard	93.956 to 93.986 mm (3.6990 to 3.7002 in.)
		Maximum	93.826 mm (3.6939 in.)
Piston oil clearance		Standard	0.014 to 0.056 mm (0.00055 to 0.00220 in.)
Piston oil clearance		Maximum	0.090 mm (0.00354 in.)
Piston ring groove clearance		No. 1	0.020 to 0.070 mm (0.000787 to 0.00276 in.)
		No. 2	0.020 to 0.060 mm (0.000787 to 0.00236 in.)
		Oil	0.020 to 0.070 mm (0.000787 to 0.00276 in.)
Piston pin hole inside diameter		Mark A	21.998 to 22.001 mm (0.8661 to 0.8662 in.)
		Mark B	22.001 to 22.004 mm (0.8662 to 0.8663 in.)
		Mark C	22.004 to 22.007 mm (0.8663 to 0.8664 in.)
Piston pin diameter		Mark A	21.997 to 22.000 mm (0.8660 to 0.8661 in.)
		Mark B	22.000 to 22.003 mm (0.8661 to 0.8663 in.)
		Mark C	22.003 to 22.006 mm (0.8663 to 0.8664 in.)
Piston pin oil clearance		Standard	0.002 to 0.004 mm (-0.0000787 to 0.000158 in.)
Piston pin oil clearance		Maximum	0.015 mm (0.000591 in.)
Connecting rod bushing inside diameter		Mark A	22.005 to 22.008 mm (0.86634 to 0.86645 in.)
		Mark B	22.008 to 22.011 mm (0.86645 to 0.86657 in.)
		Mark C	22.011 to 22.014 mm (0.86657 to 0.86669 in.)
Connecting rod bushing oil clearance		Standard	0.005 to 0.011 mm (0.000197 to 0.000433 in.)
Connecting rod bushing oil clearance		Maximum	0.030 mm (0.00118 in.)
Crankshaft thrust clearance		Standard	0.04 to 0.24 mm (0.00157 to 0.00945 in.)
		Maximum	0.30 mm (0.0118 in.)
		Thrust washer thickness	2.43 to 2.48 mm (0.0957 to 0.0976 in.)
Piston ring end gap	No. 1	Standard	0.23 to 0.33 mm (0.00906 to 0.0130 in.)
	No. 1	Maximum	0.40 mm (0.0157 in.)
	No. 2	Standard	0.35 to 0.45 mm (0.0138 to 0.0177 in.)
	No. 2	Maximum	0.50 mm (0.0197 in.)
	Oil (Side rail)	Standard	0.10 to 0.40 mm (0.00394 to 0.0157 in.)
	Oil (Side rail)	Maximum	0.45 mm (0.0177 in.)
Connecting rod out-of alignment		Maximum	0.05 mm (0.00197 in.) per 100 mm (3.94 in.)
Connecting rod twist		Maximum	0.15 mm (0.00591 in.) per 100 mm (3.94 in.)
Connecting rod bolt diameter		Standard	8.5 to 8.6 mm (0.335 to 0.339 in.)
Connecting rod bolt diameter		Minimum	8.3 mm (0.327 in.)
Crankshaft circle runout		Maximum	0.06 mm (0.00236 in.)
Crank main journal	Journal diameter	Standard	60.988 to 61.000 mm (2.4011 to 2.4016 in.)
Crank main journal	Taper and out-of-round	Maximum	0.02 mm (0.000787 in.)
Crank pin	Crank pin diameter	Standard	52.992 to 53.000 mm (2.0863 to 2.0866 in.)
Crank pin	Taper and out-of-round	Maximum	0.02 mm (0.000787 in.)
Crankshaft oil clearance	No. 1, No. 4 journal	Standard	0.026 to 0.047 mm (0.00102 to 0.00185 in.)
	No. 1, No. 4 journal	Minimum	0.050 mm (0.00197 in.)
	No. 2, No. 3 journal	Standard	0.032 to 0.053 mm (0.00126 to 0.00209 in.)
	No. 2, No. 3 journal	Minimum	0.060 mm (0.00236 in.)
Standard upper bearing center wall thickness (No. 1 and No. 4 journal)		Mark 1	2.500 to 2.503 mm (0.09843 to 0.09854 in.)
		Mark 2	2.503 to 2.506 mm (0.09854 to 0.09866 in.)
		Mark 3	2.506 to 2.509 mm (0.09866 to 0.09878 in.)
		Mark 4	2.509 to 2.512 mm (0.09878 to 0.09890 in.)
		Mark 5	2.512 to 2.515 mm (0.09890 to 0.09902 in.)
Standard lower bearing center wall thickness (No. 1 and No. 4 journal)		Mark 1	2.478 to 2.481 mm (0.09756 to 0.09768 in.)
		Mark 2	2.481 to 2.484 mm (0.09768 to 0.09780 in.)
		Mark 3	2.484 to 2.487 mm (0.09780 to 0.09791 in.)
		Mark 4	2.487 to 2.490 mm (0.09791 to 0.09803 in.)
		Mark 5	2.490 to 2.493 mm (0.09803 to 0.09815 in.)
Standard upper bearing center wall thickness (No. 2 and No. 3 journal)		Mark 1	2.475 to 2.478 mm (0.09744 to 0.09756 in.)
		Mark 2	2.478 to 2.481 mm (0.09756 to 0.09768 in.)
		Mark 3	2.481 to 2.484 mm (0.09768 to 0.09780 in.)
		Mark 4	2.484 to 2.487 mm (0.09780 to 0.09791 in.)
		Mark 5	2.487 to 2.490 mm (0.09791 to 0.09803 in.)
Standard lower bearing center wall thickness (No. 2 and No. 3 journal)		Mark 1	2.497 to 2.500 mm (0.09831 to 0.09843 in.)
		Mark 2	2.500 to 2.503 mm (0.09843 to 0.09854 in.)
		Mark 3	2.503 to 2.506 mm (0.09854 to 0.09866 in.)
		Mark 4	2.506 to 2.509 mm (0.09866 to 0.09878 in.)
		Mark 5	2.509 to 2.512 mm (0.09878 to 0.09890 in.)
Crankshaft bearing cap set bolt diameter		Standard	10.8 to 11.0 mm (0.4252 to 0.4331 in.)
		Minimum	10.7 mm (0.4213 in.)
		Measuring point	47 mm (1.85 in.)
Straight pin for cylinder block sub-assembly	Protrusion height	Pin A	22.5 to 23.5 mm (0.886 to 0.925 in.)
		Pin B	5.5 to 6.5 mm (0.217 to 0.256 in.)
		Pin C	10.5 to 11.5 mm (0.413 to 0.453 in.)
		Pin D	8.5 to 9.5 mm (0.335 to 0.374 in.)

CYLINDER BLOCK

Engine Mechanical (Service Specifications): Other Lexus GS IV

SERVICE DATA [03/2012 - ]

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