2000 Lexus SC 400FACTORY OEM SERVICE PROCEDURE

Torque Specifications

WARNING: This page is about a different car, the 2000 Lexus SC 300, 2000 Lexus GS 300, 1999 Lexus SC 300, and 1999 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
A/C Compressor Bolt/Nut 38 (52)
Camshaft Bearing Cap Bolt (1) 15 (20)
Camshaft Sprocket Bolt 60 (81)
Center Bearing Bolt
GS300 27 (37)
SC300 36 (49)
Connecting Rod Cap Bolt
Step 1 22 (30)
Step 2 Additional 90 Degrees
Crankshaft Pulley Bolt 243 (330)
Crankshaft Set Bolt 60 (81)
Cylinder Head Bolt (2)
Step 1 26 (35)
Step 2 Additional 90 Degrees
Step 3 Additional 90 Degrees
Delivery Pipe Bolt 15 (20)
Drive Belt Tensioner Bolt 15 (20)
Drive Plate Mounting Bolt 61 (83)
Engine Mount-To-Crossmember Nut
GS300 54 (73)
SC300 43 (58)
ECT Sensor 14 (19)
Exhaust Manifold Nut 30 (41)
Fan Clutch-To-Water Pump Nut 12 (16)
Fuel Hose Inlet Union Bolt 22 (30)
Fuel Inlet Pipe Bolt 21 (28)
Generator Mount Bolt 29 (39)
Idler Pulley Bolt 26 (35)
Intake Manifold Bolt/Nut 21 (28)
Intake Manifold Brace Bolt/Nut 30 (41)
Intermediate Drive Shaft Companion Flange-To-Rear Drive Shaft Companion Flange Bolt (SC300 Only) 54 (73)
Knock Sensor 33 (45)
Main Bearing Cap Bolt (3)
Step 1 33 (45)
Step 2 Additional 90 Degrees
No. 1 Oil Pan Bolt
12-mm Bolt 15 (20)
14-mm Bolt 30 (41)
No. 2 Idler Pulley Bolt 25 (34.5)
No. 2 Oil Pan Nut 21 (28)
No. 2 Timing Belt Cover 12 (16)
Oil Filter Bracket-To-Cylinder Block Bolt 13 (18)
Oil Pump Bolt 15 (21)
Power Steering Pump/Front Bracket
Bolt "A" 43 (58)
Bolt "B" 38 (52)
Power Steering Pump Rear Stay 29 (39)
Spark Plug 13 (18)
Straight Screw Plug 11 (15)
Throttle Body Bolt 13 (18)
Throttle Body Support Brace Nut 15 (20)
Timing Belt Tensioner Bolt 20 (27)
Transmission Crossmember-To-Body Bolt 33 (45)
Vane Pump Bolts 43 (58)
Water Inlet Bolt 13 (18)
Water Outlet Bolt/Nuts 21 (28)
Water Pump Bolt 13 (18)
INCH Lbs. (N.m) 
Baffle Plate Bolt/Nut 80 (9.0)
Control Rod Bolt 108 (12)
Coolant By-Pass Outlet Bolt 78 (8.8)
Crankshaft Rear Oil Seal Housing-To-Cylinder Block Bolt 52 (5.9)
Fluid Coupling Nuts 65 (7.3)
No. 1 & 2 Fuel Pipe Union Bolt 78 (8.8)
No. 1 Oil Pan Bolt
10-mm Bolt 66 (7.5)
12-mm Bolt 248 (28)
No. 2 Oil Pan Bolts/Nuts 80 (9.0)
No. 2 Timing Belt Cover Bolt 71 (8.0)
No. 3. Timing Belt Cover Bolt 66 (7.5)
No. 4 Timing Belt Cover Bolt 71 (8.0)
Oil Level Sensor Bolts 48 (5.4)
Oil Pump Cover Screws 97 (11)
Spark Plug Wire/Clamp Bolts 71 (8.0)
Transmission Mount-To-Transmission Crossmember Nut 115 (13)
Valve Cover Bolt/Nut 73 (8.2)
(1) Tighten camshaft bearing cap bolts using proper procedure. See CAMSHAFT  under REMOVAL & INSTALLATION.
(2) Tighten bolts to specification in sequence. See Figure.
(3) Tighten bolts to specification in sequence. See Figure.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.