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4.3L V8: Specifications Lexus LS III

Mechanical ~109 words

Crankcase Capacity

On GS430 models, crankcase capacity with oil filter is 5.7 qts. (5.4L) or 5.2 qts. (5.2L) without oil filter. On LS430 models, crankcase capacity with oil filter is 4.8 qts. (4.5L) or 4.4 qts. (4.2L) without oil filter.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
A/C Compressor-To-Block36 (49)
A/C Compressor-To-Oil Filter Bracket21 (28)
Accelerator Cable Bracket Bolt/Nut13 (18)
Camshaft Bearing Cap Bolt
All Except Bolts 21 & 2212 (16)
Bolts 21 & 22(1)
Camshaft Timing Tube58 (79)
Catalytic Converter-To-Exhaust Manifold Nut46 (62)
Catalytic Converter-To-Exhaust Pipe Bolt32 (43)
Center Exhaust Pipe Nut/Bolt32 (43)
Connecting Rod Cap Bolt
Step 118 (24)
Step 2Additional 90 Degrees
Crankshaft Pulley Bolt181 (245)
Cylinder Head Bolt (2)
Step 144 (59)
Step 2Additional 90 Degrees
Delivery Pipe Nut13 (18)
Drive Belt Idler Pulley Bolt/Nut
12 mm12 (16)
14 mm24 (33)
Drive Belt Tensioner Bolt/Nut11 (15)
Drive Plate-To-Crankshaft Bolt
Step 136 (49)
Step 2Additional 90 Degees
Drive Shaft Center Bearing Bolt27 (37)
Drive Shaft Flange Bolt58 (79)
Engine Coolant Drain Union Plug36 (49)
Engine Hanger Bolt27 (37)
Engine Mount-To-Cylinder Block27 (37)
Exhaust Manifold Nut32 (43)
Front Exhaust Pipe Support Bracket32 (43)
Front Suspension Crossmember43 (58)
Fuel Hose24 (33)
Generator Bolt/Nut29 (39)
Heated Oxygen Sensor32 (43)
Knock Sensor Bolt/Nut33 (45)
Lower Intake Manifold Bolt/Nut13 (18)
Main Bearing Cap Bolt (3)
Step 120 (27)
Step 2Additional 90 Degrees
Main Bearing Side Bolts36 (49)
No. 1 & 2 Timing Belt Idler Pulley Bolt25 (34)
No. 2 Timing Belt Cover Bolt12 (16)
Oil Filter Bracket Bolt/Nut13 (18)
Oil Pan
No. 1 Oil Pan Bolt/Nut
10-mm Head(1)
12-mm Head21 (28)
No. 2 Oil Pan Bolt/Nut(1)
Oil Pump-To-Cylinder Block Bolt
12-mm Head11 (15)
14-mm Head22 (30)
Power Steering Pump
Bolt29 (39)
Nut32 (43)
Rear Engine Mounting Member-to-Body19 (26)
Spark Plug13 (18)
Throttle Body Bolt/Nut13 (18)
Timing Belt Tensioner Bolt19 (26)
Torque Converter-To-Drive Plate Bolt30 (41)
Transmission Oil Cooler Pipe (For Union Nut)25 (34)
VSV For EVAP Bolt/Nut13 (18)
Water By-Pass Pipe Bolt13 (18)
Water Manifold Nut/Bolt13 (18)
Water Pump Bolt/Nut13 (18)
Water Seal Plate Bolt10 (14)
INCH Lbs. (N.m)
Camshaft Drive Gear Bolt/Nut66 (7.5)
Camshaft Sprocket Bolt66 (7.5)
Center Floor Crossmember Brace Bolt/Nut115 (13)
Crankshaft Position Sensor Bolt66 (7.5)
No. 3 Timing Belt Cover Bolt66 (7.5)
Oil Level Sensor Bolt48 (5)
Oil Baffle Plate Bolt/Nut66 (7.5)
Rear Oil Seal Retainer Bolt71 (8)
Timing Belt Rear Plate Bolt66 (7.5)
V-Bank Cover Bracket Bolt66 (7.5)
Valve Cover Bolt53 (6)
(1) Tighten to 66 INCH lbs. (7.5 N.m). (2) Tighten bolts to specification in sequence. (Схема №9) (3) Tighten main bearing cap bolts in sequence. (Схема №34)
(1)Tighten to 66 INCH lbs. (7.5 N.m).
(2)Tighten bolts to specification in sequence. (Схема №9)
(3)Tighten main bearing cap bolts in sequence. (Схема №34)

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement262 Cu. In. (4.3L)
Bore(1)
Stroke(1)
Compression Ratio(1)
Fuel SystemSFI
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

GENERAL SPECIFICATIONS

CRANKSHAFT, MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
End Play
Standard.0008-.0087 (.020-.220)
Wear Limit.0118 (.300)
Runout.0031 (0.08)
Main Bearings
Journal Diameter (1)
Size Mark "00"2.63779 (67.000)
Size Mark "01"2.63775 (66.999)
Size Mark "02"2.63771 (66.998)
Size Mark "03"2.63767 (66.997)
Size Mark "04"2.63763 (66.996)
Size Mark "05"2.63759 (66.995)
Size Mark "06"2.63755 (66.994)
Size Mark "07"2.63751 (66.993)
Size Mark "08"2.63747 (66.992)
Size Mark "09"2.63743 (66.991)
Size Mark "10"2.63739 (66.990)
Size Mark "11"2.63735 (66.989)
Size Mark "12"2.63731 (66.988)
Journal Out-Of-Round.0008 (.020)
Journal Taper.0008 (.020)
Oil Clearance
No. 1 & 5
Standard.0007-.0013 (.018-.033)
Wear Limit.0017 (.043)
All Others
Standard.0011-.0018 (.028-.046)
Wear Limit.0022 (.056)
Connecting Rod Bearings
Journal Diameter (2)
Size Mark "1"2.0470-2.0472 (51.994-52.999)
Size Mark "2"2.0468-2.0470 (51.989-51.994)
Size Mark "3"2.0465-2.0468 (51.981-51.989)
Journal Out-Of-Round.0008 (.020)
Journal Taper.0008 (.020)
Oil Clearance
Standard.0008-.0019 (.020-.048)
Wear Limit.0026 (.066)
(1) Main bearing journal diameter is identified by size mark on crankshaft. (Схема №35) (2) Connecting rod bearing journal diameter is identified by size mark on crankshaft. (Схема №33)
(1)Main bearing journal diameter is identified by size mark on crankshaft. (Схема №35)
(2)Connecting rod bearing journal diameter is identified by size mark on crankshaft. (Схема №33)

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter
Pin Bushing Bore.8660-.8664 (21.996-22.007)
Crankpin Bore (1)
Size Mark "1"2.1654-2.1656 (55.001-55.006)
Size Mark "2"2.1656-2.1658 (55.006-55.011)
Size Mark "3"2.1658-2.1661 (55.011-55.019)
Size Mark "4"2.1661-2.1663 (55.019-55.024)
Maximum Bend.0020 Per 3.94 (.050 Per 100.0)
Maximum Twist.0059 Per 3.94 (.150 Per 100.0)
Side Play
Standard.0063-.0138 (.160-.350)
Wear Limit.0138 (.350)
(1) Crankpin diameter is identified by size mark on connecting rod cap. (Схема №33)
(1)Crankpin diameter is identified by size mark on connecting rod cap. (Схема №33)

CONNECTING RODS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Clearance
Standard.0033-.0041 (.084-.104)
Wear Limit.0049 (.124)
Diameter
Size Mark "1"3.5791-3.5795 (90.909-90.919)
Size Mark "2"3.5795-3.5798 (90.919-90.927)
Size Mark "3"3.5798-3.5802 (90.927-90.937)
Pins
Diameter.8660-.8664 (21.996-22.007)
Piston Fit(1)
Rod Fit
Standard.0002-.0004 (.005-.010)
Wear Limit.0020 (.050)
Oil Clearance
Standard.0002-.0004 (.005-.010)
Wear Limit.0020 (.050)
Rings
No. 1
End Gap
Standard.0118-.0157 (.299-.399)
Maximum.0413 (1.050)
Side Clearance.0012-.0028 (.030-.079)
No. 2
End Gap
Standard.0157-.0197 (.399-.500)
Maximum.0472 (1.199)
Side Clearance.0008-.0024 (.020-.061)
No. 3 (Oil)
End Gap
Standard.0059-.0157 (.150-.399)
Wear Limit.0433 (1.100)
(1) With piston heated to 140°F (60°C), piston pin should slide into piston with thumb pressure.
(1)With piston heated to 140°F (60°C), piston pin should slide into piston with thumb pressure.

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore Standard Diameter (1)
Size Mark "1"3.5827-3.5830 (91.000-91.008)
Size Mark "2"3.5830-3.5835 (91.008-91.020)
Size Mark "3"3.5835-3.5838 (91.020-91.029)
Main Bearing Bore Inside Diameter (2)
Size Mark "00"2.83464 (72.000)
Size Mark "01"2.83467 (72.001)
Size Mark "02"2.83471 (72.002)
Size Mark "03"2.83475 (72.003)
Size Mark "04"2.83479 (72.004)
Size Mark "05"2.83483 (72.005)
Size Mark "06"2.83487 (72.006)
Size Mark "07"2.83491 (72.007)
Size Mark "08"2.83495 (72.008)
Size Mark "09"2.83499 (72.009)
Size Mark "10"2.83503 (72.010)
Size Mark "11"2.83507 (72.011)
Size Mark "12"2.83511 (72.012)
Size Mark "13"2.83515 (72.013)
Size Mark "14"2.83519 (72.014)
Size Mark "15"2.83523 (72.015)
Size Mark "16"2.83526 (72.016)
Maximum Deck Warpage.0028 (.071)
(1) Cylinder bore diameter is identified by size mark on cylinder block. (Схема №30) Maximum diameter is 3.5917" (91.229 mm). (2) Main bearing bore diameter is identified by size mark on cylinder block oil pan flange. (Схема №35)
(1)Cylinder bore diameter is identified by size mark on cylinder block. (Схема №30) Maximum diameter is 3.5917" (91.229 mm).
(2)Main bearing bore diameter is identified by size mark on cylinder block oil pan flange. (Схема №35)

CYLINDER BLOCK

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationSpecification
Intake Valves
Face Angle44.5°
Standard Margin.039" (.99 mm)
Minimum Margin.020" (.51 mm)
Standard Refinish Length3.7323-3.7520" (94.800-95.301 mm)
Minimum Refinish Length3.7224" (94.549 mm)
Stem Diameter.2154-.2159" (5.471-5.484 mm)
Exhaust Valves
Face Angle44.5°
Standard Margin.039" (.99 mm)
Minimum Margin.020" (.51 mm)
Standard Refinish Length3.7342-3.7539" (94.849-95.349 mm)
Minimum Refinish Length3.7244" (94.600 mm)
Stem Diameter.2152-.2157" (5.466-5.479 mm)
Valve Springs
Free Length2.1279-2.1319" (54.049-54.150 mm)
Out-Of-Square.079" (2.01 mm)
Lbs. @ In. (kg @ mm)
Pressure45.9-50.7 @ 1.380 (21-23 @ 35.04)

VALVES & VALVE SPRINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Maximum Warpage
Cylinder Block Surface.0039" (0.100 mm)
Manifold Surface.0039" (0.100 mm)
Valve Seats
Intake Valve
Seat Angle45°
Seat Width.039-.055" (1.00-1.40 mm)
Exhaust Valve
Seat Angle45°
Seat Width.039-.055" (1.00-1.40 mm)
Valve Guides
Intake Valve
Valve Guide Cylinder Head Bore I.D.
Standard Valve Guide.4049-.4057" (10.284-10.305 mm)
Oversize Valve Guide.4069-.4077 (10.335-10.356 mm)
Valve Guide I.D..2169-.2177" (5.509-5.530 mm)
Valve Stem-To-Guide Oil Clearance
Standard.0010-.0024" (.025-.061 mm)
Wear Limit.0031" (.079 mm)
Exhaust Valve
Valve Guide Cylinder Head Bore I.D.
Standard Valve Guide.4049-.4057" (10.284-10.305 mm)
Oversize Valve Guide.4069-.4077 (10.335-10.356 mm)
Valve Guide I.D..2169-.2177" (5.509-5.530 mm)
Valve Stem-To-Guide Oil Clearance
Standard.0012-.0026" (.030-.066 mm)
Wear Limit.0039" (.990 mm)

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
End Play
Exhaust
Standard.0016-.0035 (.040-.089)
Maximum.0047 (.119)
Intake
Standard.0024-.0039 (.061-.099)
Maximum.0051 (.130)
Journal Diameter
Exhaust Camshaft
All Journals1.0612-1.0618 (26.954-26.970)
Intake Camshaft
Timing Tube (1)1.2198-1.2205 (30.983-31.001)
All Other Journals1.0612-1.0618 (26.954-26.970)
Journal Runout.0031 (.079)
Lobe Height
Intake
Standard1.6776-1.6815 (42.611-42.710)
Minimum1.6717 (42.461)
Exhaust
Standard1.6783-1.6823 (41.629-42.730)
Minimum1.6724 (42.479)
Oil Clearance
Camshaft
Standard.0012-.0026 (.030-.066)
Maximum.0039 (.099)
Timing Tube Green Mark
Standard.0014-.0020 (.036-.051)
Maximum.0033 (.084)
Timing Tube Red Mark
Standard.0015-.0020 (.038-.051)
Maximum.0033 (.084)
Gear Backlash
Standard.0008-.0079 (.020-.201)
Wear Limit.0118 (.300)
(1) Exhaust camshaft thrust journal is the front (timing tube) journal.
(1)Exhaust camshaft thrust journal is the front (timing tube) journal.

CAMSHAFT

VALVE LIFTERS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter1.2205-1.2211 (31.001-31.016)
Lifter Diameter1.2191-1.2195 (30.965-30.975)
Oil Clearance
Standard.0009-.0020 (.023-.051)
Wear Limit.0028 (.071)

VALVE LIFTERS

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