Lexus Vehicle Models RC 2015-present Torque Specifications
Complete Lexus Vehicle Models RC 2015-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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Torque Calculator
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2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Flywheel Bolts
M16 x 1.5
Flywheel Bolts
M16 x 1.5Valvetrain and Timing System
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Turbocharger and Intercooler System
1 Turbocharger Mounting Bolts
M16 x 1.5
Turbocharger Mounting Bolts
M16 x 1.5 2 Intercooler Mounting Bolts
M14 x 1.5
Intercooler Mounting Bolts
M14 x 1.5Fuel System
1 Fuel Rail Bolts
M12 x 1.5
Fuel Rail Bolts
M12 x 1.5 2 Fuel Injector Bolts
M10 x 1.5
Fuel Injector Bolts
M10 x 1.5Ignition System
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 2 Ignition Coil Bolt
M10 x 1.5
Ignition Coil Bolt
M10 x 1.5 2.0l I4 Turbo Engine
Torque specifications for 2.0L-I4-TURBO Engine
2.0l I4 Turbo Engine
Torque specifications for 2.0L-I4-TURBO Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Flywheel Bolts
M16 x 1.5
Flywheel Bolts
M16 x 1.5Valvetrain and Timing System
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Turbocharger and Intercooler System
1 Turbocharger Mounting Bolts
M16 x 1.5
Turbocharger Mounting Bolts
M16 x 1.5 2 Intercooler Mounting Bolts
M14 x 1.5
Intercooler Mounting Bolts
M14 x 1.5Fuel System
1 Fuel Rail Bolts
M12 x 1.5
Fuel Rail Bolts
M12 x 1.5 2 Fuel Injector Bolts
M10 x 1.5
Fuel Injector Bolts
M10 x 1.5Ignition System
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 2 Ignition Coil Bolt
M10 x 1.5
Ignition Coil Bolt
M10 x 1.5 2.5l Engine
Torque specifications for 2.5L Engine
2.5l Engine
Torque specifications for 2.5L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Flywheel Bolts
M16 x 1.5
Flywheel Bolts
M16 x 1.5Valvetrain and Timing System
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5Engine Mounts and Bellhousing
1 Engine Mounting Bolts
M14 x 1.5
Engine Mounting Bolts
M14 x 1.5 2 Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
Engine Block to Transmission Bellhousing Bolts
M16 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Fuel System
1 Fuel Rail Bolts
M12 x 1.5
Fuel Rail Bolts
M12 x 1.5 2 Fuel Injector Bolts
M10 x 1.5
Fuel Injector Bolts
M10 x 1.5Ignition System
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 2 Ignition Coil Bolt
M10 x 1.5
Ignition Coil Bolt
M10 x 1.5Engine Accessories
1 Oil Filter Housing Bolt
M12 x 1.5
Oil Filter Housing Bolt
M12 x 1.5 2 Oil Drain Plug Bolt
M14 x 1.5
Oil Drain Plug Bolt
M14 x 1.5 2.5l V6 Engine
Torque specifications for 2.5L-V6 Engine
2.5l V6 Engine
Torque specifications for 2.5L-V6 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Flywheel Bolts
M16 x 1.5
Flywheel Bolts
M16 x 1.5Valvetrain and Timing System
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5Engine Mounts and Bellhousing
1 Engine Mounting Bolts
M14 x 1.5
Engine Mounting Bolts
M14 x 1.5 2 Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
Engine Block to Transmission Bellhousing Bolts
M16 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Fuel System
1 Fuel Rail Bolts
M12 x 1.5
Fuel Rail Bolts
M12 x 1.5 2 Fuel Injector Bolts
M10 x 1.5
Fuel Injector Bolts
M10 x 1.5Ignition System
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 2 Ignition Coil Bolt
M10 x 1.5
Ignition Coil Bolt
M10 x 1.5Engine Accessories
1 Oil Filter Housing Bolt
M12 x 1.5
Oil Filter Housing Bolt
M12 x 1.5 2 Oil Drain Plug Bolt
M14 x 1.5
Oil Drain Plug Bolt
M14 x 1.5 3.5l Engine
Torque specifications for 3.5L Engine
3.5l Engine
Torque specifications for 3.5L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5 3 Engine Block to Transmission Mounting Bolts
M16 x 1.5
Engine Block to Transmission Mounting Bolts
M16 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5Camshaft and Valve Train
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Intake and Exhaust Systems
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Engine Accessories
1 Alternator Mounting Bolts
M12 x 1.5
Alternator Mounting Bolts
M12 x 1.5 2 Starter Motor Mounting Bolts
M14 x 1.5
Starter Motor Mounting Bolts
M14 x 1.5Engine Mounts and Oil System
1 Engine Mounting Bolts
M16 x 1.5
Engine Mounting Bolts
M16 x 1.5 2 Oil Pan Bolts
M12 x 1.5
Oil Pan Bolts
M12 x 1.5 3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5 3 Engine Block to Transmission Mounting Bolts
M16 x 1.5
Engine Block to Transmission Mounting Bolts
M16 x 1.5Crankshaft and Connecting Rods
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5Camshaft and Valve Train
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Intake and Exhaust Systems
1 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 2 Exhaust Manifold/Headers Bolts
M14 x 1.5
Exhaust Manifold/Headers Bolts
M14 x 1.5Engine Accessories
1 Alternator Mounting Bolts
M12 x 1.5
Alternator Mounting Bolts
M12 x 1.5 2 Starter Motor Mounting Bolts
M14 x 1.5
Starter Motor Mounting Bolts
M14 x 1.5Engine Mounts and Oil System
1 Engine Mounting Bolts
M16 x 1.5
Engine Mounting Bolts
M16 x 1.5 2 Oil Pan Bolts
M12 x 1.5
Oil Pan Bolts
M12 x 1.5 5.0l Engine
Torque specifications for 5.0L Engine
5.0l Engine
Torque specifications for 5.0L Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
Cylinder Head Bolts
M10 x 1.5Crankshaft And Bearings
1 Main Bearing Bolts
M10 x 1.5
Main Bearing Bolts
M10 x 1.5 2 Connecting Rod Nuts
M8 x 1.25
Connecting Rod Nuts
M8 x 1.25Flywheel
1 Flywheel Bolts
M12 x 1.5
Flywheel Bolts
M12 x 1.5Oil System
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 2 Oil Pump Bolts
M8 x 1.25
Oil Pump Bolts
M8 x 1.25Valvetrain
1 Valve Cover Bolts
M6 x 1.0
Valve Cover Bolts
M6 x 1.0 2 Rocker Arms/Shafts Bolts
M8 x 1.25
Rocker Arms/Shafts Bolts
M8 x 1.25 5.0l V8 Engine
Torque specifications for 5.0L-V8 Engine
5.0l V8 Engine
Torque specifications for 5.0L-V8 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
Cylinder Head Bolts
M10 x 1.5Crankshaft And Bearings
1 Main Bearing Bolts
M10 x 1.5
Main Bearing Bolts
M10 x 1.5 2 Connecting Rod Nuts
M8 x 1.25
Connecting Rod Nuts
M8 x 1.25Flywheel
1 Flywheel Bolts
M12 x 1.5
Flywheel Bolts
M12 x 1.5Oil System
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 2 Oil Pump Bolts
M8 x 1.25
Oil Pump Bolts
M8 x 1.25Valvetrain
1 Valve Cover Bolts
M6 x 1.0
Valve Cover Bolts
M6 x 1.0 2 Rocker Arms/Shafts Bolts
M8 x 1.25
Rocker Arms/Shafts Bolts
M8 x 1.25 8sds Transmission
Torque specifications for 8sds Transmission
8sds Transmission
Torque specifications for 8sds Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M14 x 1.5
Transmission Mounting Bolts
M14 x 1.5Transmission Oil Pan
1 Transmission Oil Pan Bolts
M10 x 1.25
Transmission Oil Pan Bolts
M10 x 1.25Transmission Drain and Fill
1 Transmission Drain and Fill Plugs
M12 x 1.5
Transmission Drain and Fill Plugs
M12 x 1.5Transmission Case
1 Transmission Case Bolts
M14 x 1.5
Transmission Case Bolts
M14 x 1.5Transmission Bellhousing
1 Transmission Bellhousing Bolts
M12 x 1.5
Transmission Bellhousing Bolts
M12 x 1.5Transmission Crossmember
1 Transmission Crossmember Bolts
M14 x 1.5
Transmission Crossmember Bolts
M14 x 1.5Torque Converter
1 Torque Converter Bolts
M12 x 1.5
Torque Converter Bolts
M12 x 1.5 Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension and Steering
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5 2 Control Arm Bolts
M12 x 1.25
Control Arm Bolts
M12 x 1.25 3 Ball Joint Nut
M16 x 1.5
Ball Joint Nut
M16 x 1.5 4 Tie Rod End Nut
M12 x 1.25
Tie Rod End Nut
M12 x 1.25 5 Sway Bar Link Nut
M12 x 1.25
Sway Bar Link Nut
M12 x 1.25 6 Steering Gear/Rack Bolts
M14 x 1.5
Steering Gear/Rack Bolts
M14 x 1.5Body Mounts and Hinges
1 Body Mount Bolts
M12 x 1.25
Body Mount Bolts
M12 x 1.25 2 Door Hinge Bolts
M10 x 1.25
Door Hinge Bolts
M10 x 1.25 3 Hood Hinge Bolts
M10 x 1.25
Hood Hinge Bolts
M10 x 1.25 4 Trunk Lid Hinge Bolts
M10 x 1.25
Trunk Lid Hinge Bolts
M10 x 1.25 5 Bumper Mounting Bolts
M12 x 1.25
Bumper Mounting Bolts
M12 x 1.25 Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M12 x 1.5
Brake Caliper Bolts
M12 x 1.5 2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Brake Rotor
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
Brake Disc/Drum Retaining Bolts
M8 x 1.25Brake Hydraulics
1 Brake Hose Banjo Bolt
M10 x 1.0
Brake Hose Banjo Bolt
M10 x 1.0 2 Brake Master Cylinder Mounting Bolts
M8 x 1.25
Brake Master Cylinder Mounting Bolts
M8 x 1.25Brake Booster
1 Brake Booster Mounting Bolts
M8 x 1.25
Brake Booster Mounting Bolts
M8 x 1.25 2 Brake Pedal Assembly Bolts
M8 x 1.25
Brake Pedal Assembly Bolts
M8 x 1.25Abs System
1 ABS Sensor Mounting Bolts
M6 x 1.0
ABS Sensor Mounting Bolts
M6 x 1.0Wheel Assembly
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5 Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Mounting
1 Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
Engine Block to Transmission Bellhousing Bolts
M14 x 1.5 2 Transmission Crossmember Bolts
M12 x 1.5
Transmission Crossmember Bolts
M12 x 1.5 3 Transfer Case Mounting Bolts
M14 x 1.5
Transfer Case Mounting Bolts
M14 x 1.5Flywheel and Crankshaft
1 Flywheel Bolts
M12 x 1.5
Flywheel Bolts
M12 x 1.5 2 Main Bearing Bolts
M10 x 1.5
Main Bearing Bolts
M10 x 1.5 3 Connecting Rod Nuts
M10 x 1.5
Connecting Rod Nuts
M10 x 1.5 4 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5Transmission and Driveshaft
1 Transmission Mounting Bolts
M12 x 1.5
Transmission Mounting Bolts
M12 x 1.5 2 Drive Axle/Half Shaft Bolts
M14 x 1.5
Drive Axle/Half Shaft Bolts
M14 x 1.5 3 CV Joint/Axle Nut
M16 x 1.5
CV Joint/Axle Nut
M16 x 1.5 4 Propeller/Drive Shaft Bolts
M14 x 1.5
Propeller/Drive Shaft Bolts
M14 x 1.5Differential and Transfer Case
1 Differential Drain/Fill Plug
M12 x 1.5
Differential Drain/Fill Plug
M12 x 1.5 2 Transfer Case Drain/Fill Plug
M12 x 1.5
Transfer Case Drain/Fill Plug
M12 x 1.5 3 Differential Cover Bolts
M10 x 1.5
Differential Cover Bolts
M10 x 1.5 4 Driveshaft Center Bearing Bolts
M12 x 1.5
Driveshaft Center Bearing Bolts
M12 x 1.5 Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator And Starter Motor
1 Alternator Mounting Bolts
M12 x 1.5
Alternator Mounting Bolts
M12 x 1.5 2 Starter Motor Mounting Bolts
M14 x 1.5
Starter Motor Mounting Bolts
M14 x 1.5Battery Terminals
1 Battery Terminal Nuts
M8 x 1.25
Battery Terminal Nuts
M8 x 1.25Ignition Coil And Fuel Pump
1 Ignition Coil Mounting Bolts
M10 x 1.25
Ignition Coil Mounting Bolts
M10 x 1.25 2 Fuel Pump Electrical Connector Bolts
M6 x 1.0
Fuel Pump Electrical Connector Bolts
M6 x 1.0A/C Compressor
1 A/C Compressor Electrical Connector Bolts
M6 x 1.0
A/C Compressor Electrical Connector Bolts
M6 x 1.0 Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Egr System
1 EGR Valve Bolts
M8 x 1.25
EGR Valve Bolts
M8 x 1.25Exhaust Manifold
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
Exhaust Manifold/Headers Bolts
M10 x 1.5 2 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25Exhaust Pipe
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5 2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5Oxygen Sensors
1 Oxygen Sensor (O2 Sensor) Mounting
M12 x 1.5
Oxygen Sensor (O2 Sensor) Mounting
M12 x 1.5Heat Shields
1 Catalytic Converter Heat Shield Bolts
M6 x 1.0
Catalytic Converter Heat Shield Bolts
M6 x 1.0Temperature Sensors
1 Exhaust Gas Temperature Sensor Mounting
M8 x 1.25
Exhaust Gas Temperature Sensor Mounting
M8 x 1.25 Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold and Headers
1 Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5 2 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25Exhaust Pipe and Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5 2 Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5 3 Muffler to Exhaust Pipe Bolts
M12 x 1.5
Muffler to Exhaust Pipe Bolts
M12 x 1.5Oxygen Sensor and Heat Shield
1 Oxygen Sensor Bolts
M8 x 1.25
Oxygen Sensor Bolts
M8 x 1.25 2 Heat Shield Bolts
M6 x 1.0
Heat Shield Bolts
M6 x 1.0Exhaust System Mounting
1 Exhaust System Mounting Bolts
M14 x 1.5
Exhaust System Mounting Bolts
M14 x 1.5Exhaust Pipe Flange
1 Exhaust Pipe Flange Bolts
M10 x 1.25
Exhaust Pipe Flange Bolts
M10 x 1.25 Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail System
1 Fuel Rail Bolts
M8 x 1.25
Fuel Rail Bolts
M8 x 1.25 2 Fuel Injector Bolts
M6 x 1.0
Fuel Injector Bolts
M6 x 1.0 3 Fuel Injector Rail Bolts
M8 x 1.25
Fuel Injector Rail Bolts
M8 x 1.25Fuel Pump And Tank
1 Fuel Pump Mounting Bolts
M6 x 1.0
Fuel Pump Mounting Bolts
M6 x 1.0 2 Fuel Tank Strap Bolts
M10 x 1.5
Fuel Tank Strap Bolts
M10 x 1.5 3 Fuel Tank Sender Unit Bolts
M6 x 1.0
Fuel Tank Sender Unit Bolts
M6 x 1.0Fuel Lines And Fittings
1 High-Pressure Fuel Line Fittings
M8 x 1.25
High-Pressure Fuel Line Fittings
M8 x 1.25 2 Fuel Filter Bolt/Nut
M8 x 1.25
Fuel Filter Bolt/Nut
M8 x 1.25 3 Fuel Line Clamp Bolts
M6 x 1.0
Fuel Line Clamp Bolts
M6 x 1.0Fuel Filler Neck
1 Fuel Filler Neck Bolts
M6 x 1.0
Fuel Filler Neck Bolts
M6 x 1.0 Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Ac Compressor
1 A/C Compressor Mounting Bolts
M10 x 1.5
A/C Compressor Mounting Bolts
M10 x 1.5Ac Lines
1 A/C Line Fittings
M8 x 1.25
A/C Line Fittings
M8 x 1.25Evaporator Core
1 Evaporator Core Housing Bolts
M6 x 1.0
Evaporator Core Housing Bolts
M6 x 1.0Blower Motor
1 Blower Motor Mounting Bolts
M6 x 1.0
Blower Motor Mounting Bolts
M6 x 1.0Heater Core
1 Heater Core Inlet/Outlet Pipe Bolts
M6 x 1.0
Heater Core Inlet/Outlet Pipe Bolts
M6 x 1.0Hvac Case
1 HVAC Case Assembly Bolts
M6 x 1.0
HVAC Case Assembly Bolts
M6 x 1.0Condenser
1 Condenser Mounting Bolts
M8 x 1.25
Condenser Mounting Bolts
M8 x 1.25 Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Strut/Shock Absorber Mounting
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5Control Arms
1 Upper Control Arm Bushing Bolts
M10 x 1.25
Upper Control Arm Bushing Bolts
M10 x 1.25 2 Lower Control Arm Bolts
M16 x 1.5
Lower Control Arm Bolts
M16 x 1.5Steering Components
1 Ball Joint Nut
M18 x 1.5
Ball Joint Nut
M18 x 1.5 2 Tie Rod End Nut
M12 x 1.25
Tie Rod End Nut
M12 x 1.25 3 Steering Knuckle Bolts
M16 x 1.5
Steering Knuckle Bolts
M16 x 1.5Sway Bar and Coil Spring
1 Sway Bar Link Nut
M10 x 1.25
Sway Bar Link Nut
M10 x 1.25 2 Coil Spring Mounting Bolts
M12 x 1.25
Coil Spring Mounting Bolts
M12 x 1.25Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What IS the proper tightening sequence for critical suspension components, such as the ball joints and control arms?
What IS the proper tightening sequence for critical suspension components, such as the ball joints and control arms?
Refer to Lexus technical service bulletin TSB-0056 for the prescribed tightening sequence and torque specifications. Failure to follow the specified sequence can lead to uneven loading and compromise component integrity.
Q2 What type of torque wrench IS recommended for accurate torque application on the Lexus RC?
What type of torque wrench IS recommended for accurate torque application on the Lexus RC?
Use a high-quality, calibrated torque wrench with a range that covers the specified torque values for the vehicle. A beam-type or digital torque wrench IS recommended for precise tightening.
Q3 What precautions should be taken when using power tools for torque application?
What precautions should be taken when using power tools for torque application?
Always use power tools with a torque limiter or calibrate them to the desired torque value. Overtightening can damage threads, strip bolts, and compromise component integrity.
Q4 How often should torque specifications be checked or reapplied?
How often should torque specifications be checked or reapplied?
Torque specifications should be checked or reapplied as per the maintenance schedule or after major repairs or component replacements. Ignoring torque specifications can lead to loose fasteners, vibrations, and potential safety hazards.
Q5 What IS the recommended torque for the lug nuts on the Lexus RC?
What IS the recommended torque for the lug nuts on the Lexus RC?
The proper torque for lug nuts on the Lexus RC IS 96 ft-lbs (130 Nm). Always use a torque wrench to ensure proper tightening.
Q6 Can I use aftermarket bolts or fasteners with different torque specifications?
Can I use aftermarket bolts or fasteners with different torque specifications?
Using aftermarket bolts or fasteners with different torque specifications IS not recommended. Original equipment manufacturer (OEM) components are designed and tested to meet specific torque requirements, and using non-OEM parts can compromise safety and performance.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the RC.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Engine and Driveline Component Bolt Tightening Specifications
Comprehensive procedure outlining torque specifications for engine, transmission, and differential components.
- Locate the engine component or driveline component that requires torque tightening.
- Identify the size and grade of the bolt or nut being torqued.
- Refer to the torque specifications table for the correct torque value.
- Use the digital torque wrench to tighten the bolt or nut to the specified torque.
- Tighten the bolt or nut in a star pattern or sequence as specified in the service manual.
- Verify the tightness of the bolt or nut after tightening.
Suspension and Steering Component Bolt Tightening Specifications
Detailed guide with torque specifications for suspension and steering components.
- Identify the suspension or steering component that requires torque tightening.
- Locate the bolt or nut that needs to be tightened.
- Refer to the torque specifications table for the appropriate torque value.
- Use the digital torque wrench to tighten the bolt or nut to the specified torque.
- Follow the tightening sequence or pattern specified in the service manual.
- Recheck the tightness of the bolt or nut after tightening.
Brake Component Bolt Tightening Specifications
Specific instructions with torque values for brake calipers, rotors, and pads.
- Locate the brake component that requires torque tightening.
- Identify the bolts or nuts that need to be torqued.
- Refer to the torque specifications table for the corresponding torque value.
- Tighten the bolts or nuts to the specified torque using the digital torque wrench.
- Follow the tightening sequence or pattern as outlined in the service manual.
- Double-check the tightness of the bolts or nuts after tightening.
Technical Service Bulletins
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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