Contents Section: Mechanical All sections

Engine Mechanical -- Specifications: Other Toyota Avalon XX20 рестайлинг

SERVICE DATA

Compression pressureAt 250 rpm STD1,500 kPa (15.3 kgf/cm 2 , 218 psi)
Minimum1,000 kPa (10.2 kgf/cm 2 , 145 psi)
Difference of pressure between each cylinder100 kPa (1.0 kgf/cm 2 , 15 psi) or less
Valve clearanceAt cold Intake0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust0.25 - 0.35 mm (0.010 - 0.014 in.)
Adjusting shim for repair partMark 2.5002.500 mm (0.0984 in.)
Mark 2.5502.550 mm (0.1004 in.)
Mark 2.6002.600 mm (0.1024 in.)
Mark 2.6502.650 mm (0.1043 in.)
Mark 2.7002.700 mm (0.1063 in.)
Mark 2.7502.750 mm (0.1083 in.)
Mark 2.8002.800 mm (0.1102 in.)
Mark 2.8502.850 mm (0.1122 in.)
Mark 2.9002.900 mm (0.1142 in.)
Mark 2.9502.950 mm (0.1161 in.)
Mark 3.0003.000 mm (0.1181 in.)
Mark 3.0503.050 mm (0.1201 in.)
Mark 3.1003.100 mm (0.1220 in.)
Mark 3.1503.150 mm (0.1240 in.)
Mark 3.2003.200 mm (0.1260 in.)
Mark 3.2503.250 mm (0.1280 in.)
Mark 3.3003.300 mm (0.1299 in.)
Ignition timingW/ Terminals TE1 and E1 connected of DLC18 - 12° BTDC @ idle
Idle speed650 ± 50 rpm
Timing belt tensionerProtrusion from housing side10.0 - 10.8 mm (0.394 - 0.425 in.)
Cylinder headWarpageMaximum0.10 mm (0.039 in.)
Valve seat
Refacing angle30°, 45°, 75°
Contacting angle45°
Contacting width1.0 - 1.4 mm (0.039 - 0.055 in.)
Valve guide bushing bore diameterSTD10.295 - 10.313 mm (0.4053 - 0.4080 in.)
O/S 0.0510.345 - 10.363 mm (0.4073 - 0.4080 in.)
12 pointed head cylinder head bolt diameter
At tension portion STD8.95 - 9.05 mm (0.3524 - 0.3563 in.)
Minimum8.75 mm (0.3445 in.)
Valve guide bushingInside diameter5.510 - 5.530 mm (0.2169 - 0.2177 in.)
Outside diameter for repair partSTD10.333 - 10.344 mm (0.4068 - 0.4072 in.)
O/S 0.0510.383 - 10.394 mm (0.4088 - 0.4092 in.)
ValveValve overall lengthSTD Intake95.45 mm (3.5779 in.)
Exhaust95.40 mm (3.7559 in.)
Minimum Intake94.95 mm (3.7382 in.)
Exhaust94.90 mm (3.7362 in.)
Valve face angle44.5°
Stem diameterIntake5.470 - 5.485 mm (0.2154 - 0.2159 in.)
Exhaust5.465 - 5.480 mm (0.2152 - 0.2157 in.)
Stem oil clearanceSTD Intake0.025 - 0.060 mm (0.0010 - 0.0024 in.)
Exhaust0.030 - 0.065 mm (0.0012 - 0.0026 in.)
Maximum Intake0.08 mm (0.0031 in.)
Exhaust0.10 mm (0.0039 in.)
Margin thicknessSTD1.0 mm (0.039 in.)
Maximum0.5 mm (0.020 in.)
Valve springDeviationMaximum2.0 mm (0.079 in.)
Free length45.50 mm (1.7913 in.)
Installed tension at 33.8 mm (1.331 in.)186 - 206 N (19.0 - 21.0 kgf, 41.9 - 46.3 lbf)
Valve lifterLifter diameter30.966 - 30.976 mm (1.2191 - 2.2195 in.)
Lifter bore diameter31.000 - 31.016 mm (1.2205 - 1.2211 in.)
Oil clearanceSTD0.024 - 0.050 mm (0.0009 - 0.0020 in.)
Maximum0.07 mm (0.0028 in.)
CamshaftThrust clearanceSTD0.040 - 0.090 mm (0.0016 - 0.0035 in.)
Maximum0.12 mm (0.0047 in.)
Journal oil clearanceSTD Intake0.035 - 0.072 mm (0.0014 - 0.0028 in.)
Exhaust0.025 - 0.062 mm (0.0010 - 0.0024 in.)
Maximum Intake0.10 mm (0.0039 in.)
Exhaust0.09 mm (0.0035 in.)
Journal diameter26.949 - 26.965 mm (1.0610 - 1.0616 in.)
Circle runoutMaximum0.06 mm (0.0024 in.)
Cam lobe heightSTD Intake42.11 - 42.21 mm (1.6579 - 1.6618 in.)
Exhaust41.96 - 42.06 mm (1.6520 - 1.6559 in.)
Minimum Intake41.96 mm (1.6520 in.)
Exhaust41.81 mm (1.6461 in.)
Camshaft gear backlashSTD0.020 - 0.200 mm (0.0008 - 0.0079 in.)
Maximum0.30 mm (0.0188 in.)
Camshaft gear spring end free distance18.2 - 18.8 mm (0.712 - 0.740 in.)
Air intake chamberWarpageMaximum0.10 mm (0.0039 in.)
Intake manifoldWarpage
Air intake chamber sideMaximum0.15 mm (0.0059 in.)
Cylinder head sideMaximum0.08 mm (0.0031 in.)
Exhaust manifoldWarpageMaximum0.50 mm (0.0196 in.)
Cylinder blockCylinder head surface warpageMaximum0.07 mm (0.0028 in.)
Cylinder bore diameter87.500 - 87.512 mm (3.4449 - 3.4453 in.)
Maximum87.52 mm (3.4457 in.)
12 pointed head main bearing cap bolt diameter
At tension portion STD7.500 - 7.600 mm (0.2953 - 0.2992 in.)
Minimum7.20 mm (0.2835 in.)
Piston and piston ringPiston diameter
AISIN made
At 23.2 mm (0.913 in.) from the piston head87.406 - 87.416 mm (3.4412 - 3.4416 in.)
MAHLE made
At 41.2 mm (1.622 in.) from the piston head87.453 - 87.467 mm (3.4430 - 3.4436 in.)
Piston oil clearance
AISIN madeSTD0.084 - 0.106 mm (0.0033 - 0.0042)
Maximum0.13 mm (0.0051 in.)
MAHLE madeSTD0.033 - 0.059 mm (0.0013 - 0.0023)
Maximum0.08 mm (0.0031 in.)
Piston ring groove clearanceNo. 10.020 - 0.070 mm (0.0008 - 0.0028 in.)
No. 20.020 - 0.060 mm (0.0008 - 0.0024 in.)
Piston ring end gapSTD No.10.25 - 0.35 mm (0.0098 - 0.0138 in.)
No.20.35 - 0.45 mm (0.0138 - 0.0177 in.)
Oil0.15 - 0.40 mm (0.0059 - 0.0157 in.)
Maximum No.10.95 mm (0.0374 in.)
No.21.05 mm (0.0413 in.)
Oil1.00 mm (0.0394 in.)
Connecting rodThrust clearanceSTD0.15 - 0.30 mm (0.0059 - 0.0118 in.)
Maximum0.35 mm (0.0138 in.)
Connecting rod thickness20.80 - 20.85 mm (0.8189 - 0.8209 in.)
Connecting rod bearing center wall thickness
ReferenceMark 11.484 - 1.487 mm (0.0584 - 0.0585 in.)
Mark 21.487 - 1.490 mm (0.0585 - 0.0587 in.)
Mark 31.490 - 1.493 mm (0.0587 - 0.0588 in.)
Mark 41.493 - 1.496 mm (0.0588 - 0.0589 in.)
Connecting rod oil clearanceSTD0.038 - 0.064 mm (0.0015 - 0.0025 in.)
Maximum0.08 mm (0.0031 in.)
Rod bendMaximum per 100 mm (3.94 in.)0.05 mm (0.0020 in.)
Rod twistMaximum per 100 mm (3.94 in.)0.15 mm (0.0059 in.)
Bushing inside diameter22.005 - 22.014 mm (0.8663 - 0.8667 in.)
Piston pin diameter21.997 - 22.006 mm (0.8660 - 0.8664 in.)
Bushing oil clearanceSTD0.005 - 0.011 mm (0.0002 - 0.0004 in.)
Maximum0.05 mm (0.0020 in.)
Connecting rod bolt diameter
At tension portion STD7.2 - 7.3 mm (0.284 - 0.287 in.)
Minimum7.0 mm (0.276 in.)
CrankshaftThrust clearanceSTD0.04 - 0.24 mm (0.0016 - 0.0095 in.)
Maximum0.30 mm (0.0118 in.)
Thrust washer thickness1.930 - 1.980 mm (0.0760 - 0.0780 in.)
Main journal oil clearanceSTD No.1 and No.40.016 - 0.036 mm (0.0006 - 0.0014 in.)
No.2 and No.30.028 - 0.048 mm (0.0011 - 0.0019 in.)
Maximum No.1 and No.40.05 mm (0.0020 in.)
No.2 and No.30.06 mm (0.0024 in.)
Main journal diameter60.988 - 61.000 mm (2.4011 - 2.4016 in.)
Main bearing center wall thickness
ReferenceMark 12.485 - 2.488 mm (0.0978 - 0.0980 in.)
Mark 22.488 - 2.491 mm (0.0980 - 0.0981 in.)
Mark 32.491 - 2.494 mm (0.0981 - 0.0982 in.)
Mark 42.494 - 2.497 mm (0.0982 - 0.0983 in.)
Mark 52.497 - 2.500 mm (0.0983 - 0.0984 in.)
Mark 62.500 - 2.503 mm (0.0984 - 0.0985 in.)
Mark 72.503 - 2.506 mm (0.0985 - 0.0987 in.)
Crank pin diameter52.992 - 53.000 mm (2.0863 - 2.0866 in.)
Circle runoutMaximum0.06 mm (0.0024 in.)
Main journal taper and out-of-roundMaximum0.02 mm (0.0008 in.)
Crank pin taper and out-of-roundMaximum0.02 mm (0.0008 in.)

Engine Mechanical Service Data