Subaru Vehicle Models Subaru Impreza 1992-2000 Torque Specifications
Complete Subaru Vehicle Models Subaru Impreza 1992-2000 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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1.6l H4 Engine
Torque specifications for 1.6L-H4 Engine
1.6l H4 Engine
Torque specifications for 1.6L-H4 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Cylinder Head Studs
M10 x 1.25
Cylinder Head Studs
M10 x 1.25Main Bearings and Crankshaft
1 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5Valvetrain and Timing System
1 Camshaft Sprocket Bolt
M12 x 1.25
Camshaft Sprocket Bolt
M12 x 1.25 2 Timing Belt/Chain Tensioner Bolt
M10 x 1.25
Timing Belt/Chain Tensioner Bolt
M10 x 1.25Engine Mounts and Oil Pan
1 Engine Mounting Bolts
M12 x 1.5
Engine Mounting Bolts
M12 x 1.5 2 Oil Pan Bolts
M8 x 1.25
Oil Pan Bolts
M8 x 1.25Fuel and Ignition System
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 2 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 1.8l H4 Engine
Torque specifications for 1.8L-H4 Engine
1.8l H4 Engine
Torque specifications for 1.8L-H4 Engine
Engine Block and Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Cylinder Head to Engine Block Studs
M14 x 1.5
Cylinder Head to Engine Block Studs
M14 x 1.5Engine Mounts and Transmission
1 Engine Mounting Bolts
M16 x 1.5
Engine Mounting Bolts
M16 x 1.5 2 Engine Block to Transmission Bolts
M14 x 1.5
Engine Block to Transmission Bolts
M14 x 1.5Crankshaft and Camshaft
1 Main Bearing Bolts
M18 x 1.5
Main Bearing Bolts
M18 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5 3 Camshaft Sprocket Bolt
M16 x 1.5
Camshaft Sprocket Bolt
M16 x 1.5Valvetrain and Intake/Exhaust
1 Valve Cover Bolts
M10 x 1.5
Valve Cover Bolts
M10 x 1.5 2 Intake Manifold Bolts
M12 x 1.5
Intake Manifold Bolts
M12 x 1.5 3 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Accessories and Sensors
1 Crankshaft Position Sensor Bolt
M8 x 1.25
Crankshaft Position Sensor Bolt
M8 x 1.25 2 Camshaft Position Sensor Bolt
M8 x 1.25
Camshaft Position Sensor Bolt
M8 x 1.25 3 Water Pump Bolts
M10 x 1.5
Water Pump Bolts
M10 x 1.5 2.0l H4 Engine
Torque specifications for 2.0L-H4 Engine
2.0l H4 Engine
Torque specifications for 2.0L-H4 Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Engine Block to Cylinder Head Dowel Pins
M8 x 1.25
Engine Block to Cylinder Head Dowel Pins
M8 x 1.25Main Bearing
1 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Connecting Rod
1 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5Flywheel
1 Flywheel Bolts
M14 x 1.5
Flywheel Bolts
M14 x 1.5Oil Pan
1 Oil Pan Bolts
M10 x 1.25
Oil Pan Bolts
M10 x 1.25Valve Cover
1 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25Timing Belt Chain
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5Camshaft
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5Crankshaft
1 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5Spark Plugs
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25Rocker Arms Shafts
1 Rocker Arms/Shafts Bolts
M10 x 1.25
Rocker Arms/Shafts Bolts
M10 x 1.25Water Pump
1 Water Pump Bolts
M10 x 1.25
Water Pump Bolts
M10 x 1.25Thermostat Housing
1 Thermostat Housing Bolts
M8 x 1.25
Thermostat Housing Bolts
M8 x 1.25Oil Filter Housing
1 Oil Filter Housing Bolt
M12 x 1.5
Oil Filter Housing Bolt
M12 x 1.5Oil Drain Plug
1 Oil Drain Plug Bolt
M12 x 1.5
Oil Drain Plug Bolt
M12 x 1.5Crankshaft Position Sensor
1 Crankshaft Position Sensor Bolt
M8 x 1.25
Crankshaft Position Sensor Bolt
M8 x 1.25Camshaft Position Sensor
1 Camshaft Position Sensor Bolt
M8 x 1.25
Camshaft Position Sensor Bolt
M8 x 1.25Engine Mounting
1 Engine Mounting Bolts
M14 x 1.5
Engine Mounting Bolts
M14 x 1.5 2.2l H4 Engine
Torque specifications for 2.2L-H4 Engine
2.2l H4 Engine
Torque specifications for 2.2L-H4 Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 3 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Engine Block and Bearings
1 Main Bearing Bolts
M14 x 2.0
Main Bearing Bolts
M14 x 2.0 2 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5Crankshaft and Pulley
1 Flywheel Bolts
M14 x 2.0
Flywheel Bolts
M14 x 2.0 2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0Timing and Accessory Components
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Timing Belt/Chain Tensioner Bolt
M12 x 1.5 2 Camshaft Sprocket Bolt
M14 x 2.0
Camshaft Sprocket Bolt
M14 x 2.0Engine Mounting and Accessories
1 Engine Mounting Bolts
M14 x 2.0
Engine Mounting Bolts
M14 x 2.0 2 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5Intake and Exhaust Components
1 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Fuel and Ignition Components
1 Fuel Rail Bolts
M10 x 1.5
Fuel Rail Bolts
M10 x 1.5 2 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 3 Ignition Coil Bolt
M8 x 1.25
Ignition Coil Bolt
M8 x 1.25 4eat Transmission
Torque specifications for 4eat Transmission
4eat Transmission
Torque specifications for 4eat Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M14 x 1.5
Transmission Mounting Bolts
M14 x 1.5Transmission Oil System
1 Transmission Oil Pan Bolts
M10 x 1.25
Transmission Oil Pan Bolts
M10 x 1.25 2 Transmission Drain and Fill Plugs
M12 x 1.5
Transmission Drain and Fill Plugs
M12 x 1.5Transmission Case and Valve Body
1 4EAT Transmission Case Bolts
M12 x 1.5
4EAT Transmission Case Bolts
M12 x 1.5 2 4EAT Transmission Valve Body Bolts
M10 x 1.25
4EAT Transmission Valve Body Bolts
M10 x 1.25Transmission Filter and Cooler Lines
1 4EAT Transmission Filter Bolts
M10 x 1.25
4EAT Transmission Filter Bolts
M10 x 1.25 2 4EAT Transmission Cooler Line Fittings
M12 x 1.5
4EAT Transmission Cooler Line Fittings
M12 x 1.5 Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension And Steering
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5 2 Strut/Shock Absorber Mounting Bolts
M10 x 1.25
Strut/Shock Absorber Mounting Bolts
M10 x 1.25 3 Control Arm Bolts
M10 x 1.25
Control Arm Bolts
M10 x 1.25 4 Ball Joint Nut
M8 x 1.0
Ball Joint Nut
M8 x 1.0 5 Tie Rod End Nut
M6 x 1.0
Tie Rod End Nut
M6 x 1.0 6 Sway Bar Link Nut
M5 x 0.8
Sway Bar Link Nut
M5 x 0.8 7 Steering Gear/Rack Bolts
M10 x 1.25
Steering Gear/Rack Bolts
M10 x 1.25Fuel And Electrical
1 Fuel Tank Strap Bolts
M6 x 1.0
Fuel Tank Strap Bolts
M6 x 1.0 2 Fuel Filler Neck Bolts
M4 x 0.7
Fuel Filler Neck Bolts
M4 x 0.7 3 Battery Terminal Nuts
M4 x 0.7
Battery Terminal Nuts
M4 x 0.7Body Panels And Interior
1 Body Panel Bolts (e.g., fender, door hinges, hood hinges)
M5 x 0.8
Body Panel Bolts (e.g., fender, door hinges, hood hinges)
M5 x 0.8 2 Seat Belt Anchorage Bolts
M8 x 1.0
Seat Belt Anchorage Bolts
M8 x 1.0 3 Bumper Mounting Bolts
M6 x 1.0
Bumper Mounting Bolts
M6 x 1.0 4 Roof Rack Mounting Bolts
M5 x 0.8
Roof Rack Mounting Bolts
M5 x 0.8 Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M10 x 1.25
Brake Caliper Bolts
M10 x 1.25 2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Brake Disc Drum
1 Brake Disc/Drum Retaining Bolts
M10 x 1.25
Brake Disc/Drum Retaining Bolts
M10 x 1.25Wheel Attachment
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Brake Pedal
1 Brake Pedal Mounting Bolts
M8 x 1.25
Brake Pedal Mounting Bolts
M8 x 1.25Brake Hydraulics
1 Brake Line Fittings
M10 x 1.0
Brake Line Fittings
M10 x 1.0 2 Brake Master Cylinder Mounting Bolts
M8 x 1.25
Brake Master Cylinder Mounting Bolts
M8 x 1.25 3 Brake Booster Mounting Bolts
M10 x 1.25
Brake Booster Mounting Bolts
M10 x 1.25 Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Flywheel
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25Transmission Mounting
1 Transmission Mounting Bolts
M10 x 1.5
Transmission Mounting Bolts
M10 x 1.5Drive Axle
1 Drive Axle/Half Shaft Bolts
M10 x 1.25
Drive Axle/Half Shaft Bolts
M10 x 1.25 2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5Propeller Shaft
1 Propeller/Drive Shaft Bolts
M8 x 1.25
Propeller/Drive Shaft Bolts
M8 x 1.25Fluid System
1 Transmission Drain and Fill Plugs
M12 x 1.5
Transmission Drain and Fill Plugs
M12 x 1.5 2 Differential Drain/Fill Plug
M14 x 1.5
Differential Drain/Fill Plug
M14 x 1.5 3 Transfer Case Drain/Fill Plug
M12 x 1.5
Transfer Case Drain/Fill Plug
M12 x 1.5Differential Mounting
1 Differential Mounting Bolts
M10 x 1.5
Differential Mounting Bolts
M10 x 1.5Transfer Case Mounting
1 Transfer Case Mounting Bolts
M10 x 1.5
Transfer Case Mounting Bolts
M10 x 1.5Pinion Flange
1 Rear Differential Pinion Flange Bolts
M12 x 1.75
Rear Differential Pinion Flange Bolts
M12 x 1.75 2 Front Differential Pinion Flange Bolts
M12 x 1.75
Front Differential Pinion Flange Bolts
M12 x 1.75Transmission Bellhousing
1 Transmission Bellhousing Bolts
M10 x 1.5
Transmission Bellhousing Bolts
M10 x 1.5 Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Ignition System
1 Ignition Coil Bolt
M6 x 1.0
Ignition Coil Bolt
M6 x 1.0Starting System
1 Starter Motor Mounting Bolts
M10 x 1.5
Starter Motor Mounting Bolts
M10 x 1.5Charging System
1 Alternator Mounting Bolts
M10 x 1.5
Alternator Mounting Bolts
M10 x 1.5Battery System
1 Battery Terminal Nuts
M6 x 1.0
Battery Terminal Nuts
M6 x 1.0Grounding System
1 Grounding Point Bolts
M6 x 1.0
Grounding Point Bolts
M6 x 1.0Engine Management System
1 ECU Mounting Bolts
M6 x 1.0
ECU Mounting Bolts
M6 x 1.0 2 Sensor Mounting Bolts (e.g., Crankshaft Position Sensor)
M6 x 1.0
Sensor Mounting Bolts (e.g., Crankshaft Position Sensor)
M6 x 1.0Fuse And Relay System
1 Fuse Box Mounting Bolts
M6 x 1.0
Fuse Box Mounting 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 1.25 2 EGR Pipe Bolts
M8 x 1.25
EGR Pipe Bolts
M8 x 1.25Exhaust Manifold System
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
M10 x 1.5
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.5Exhaust Pipe System
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 Sensor System
1 Oxygen Sensor (O2 Sensor) Bolts
M10 x 1.5
Oxygen Sensor (O2 Sensor) Bolts
M10 x 1.5Air Injection System
1 Air Injection System Bolts
M6 x 1.0
Air Injection System Bolts
M6 x 1.0 Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25 2 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25Muffler
1 Muffler to Exhaust Pipe Bolts
M10 x 1.25
Muffler to Exhaust Pipe Bolts
M10 x 1.25Egr Valve
1 EGR Valve Bolts
M8 x 1.25
EGR Valve Bolts
M8 x 1.25Heat Shield
1 Exhaust Heat Shield Bolts
M6 x 1.0
Exhaust Heat Shield Bolts
M6 x 1.0Oxygen Sensor
1 Oxygen Sensor (O2 Sensor)
M12 x 1.25
Oxygen Sensor (O2 Sensor)
M12 x 1.25Exhaust Flange
1 Exhaust Flange Bolts (Downpipe to Midpipe)
M10 x 1.25
Exhaust Flange Bolts (Downpipe to Midpipe)
M10 x 1.25Exhaust Hanger
1 Exhaust Hanger Bolts
M8 x 1.25
Exhaust Hanger Bolts
M8 x 1.25 Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Delivery 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 Pump Mounting Bolts
M6 x 1.0
Fuel Pump Mounting Bolts
M6 x 1.0Fuel Storage System
1 Fuel Tank Strap Bolts
M10 x 1.5
Fuel Tank Strap Bolts
M10 x 1.5 2 Fuel Filler Neck Bolts
M6 x 1.0
Fuel Filler Neck Bolts
M6 x 1.0Fuel Filtration System
1 Fuel Filter Bolt/Nut
M8 x 1.25
Fuel Filter Bolt/Nut
M8 x 1.25Fuel Regulation System
1 Fuel Pressure Regulator Bolts
M6 x 1.0
Fuel Pressure Regulator Bolts
M6 x 1.0 2 Fuel Return Line Bolts
M6 x 1.0
Fuel Return Line Bolts
M6 x 1.0Fuel Level Monitoring System
1 Fuel Tank Sender Unit Bolts
M6 x 1.0
Fuel Tank Sender Unit 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 1.25
A/C Compressor Mounting Bolts
M10 x 1.25Ac Lines
1 A/C Line Fittings
M8 x 1.25
A/C Line Fittings
M8 x 1.25Evaporator
1 Evaporator Housing Bolts
M6 x 1.0
Evaporator 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 Fittings
M8 x 1.25
Heater Core Inlet/Outlet Fittings
M8 x 1.25Condenser
1 Condenser Mounting Bolts
M6 x 1.0
Condenser Mounting Bolts
M6 x 1.0Control Panel
1 HVAC Control Panel Mounting Screws
M4 x 0.7
HVAC Control Panel Mounting Screws
M4 x 0.7 Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Strut Shock Absorber
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.5
Strut/Shock Absorber Mounting Bolts
M12 x 1.5 2 Lower Strut Mount Bolts
M12 x 1.5
Lower Strut Mount Bolts
M12 x 1.5 3 Upper Strut Mount Nuts
M10 x 1.25
Upper Strut Mount Nuts
M10 x 1.25Control Arms
1 Control Arm Bolts
M12 x 1.5
Control Arm Bolts
M12 x 1.5 2 Ball Joint Nut
M10 x 1.25
Ball Joint Nut
M10 x 1.25Steering System
1 Tie Rod End Nut
M10 x 1.25
Tie Rod End Nut
M10 x 1.25 2 Steering Gear/Rack Bolts
M12 x 1.5
Steering Gear/Rack Bolts
M12 x 1.5Sway Bar
1 Sway Bar Link Nut
M8 x 1.25
Sway Bar Link Nut
M8 x 1.25Wheels
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Subframe
1 Subframe Bolts
M14 x 1.5
Subframe Bolts
M14 x 1.5Rear Suspension
1 Rear Trailing Arm Bolts
M12 x 1.5
Rear Trailing Arm Bolts
M12 x 1.5 2 Rear Lateral Link Bolts
M12 x 1.5
Rear Lateral Link Bolts
M12 x 1.5Troubleshooting 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 recommended torque for the lug nuts on my 1992-2000 Subaru Impreza?
What IS the recommended torque for the lug nuts on my 1992-2000 Subaru Impreza?
The recommended torque for the lug nuts on a 1992-2000 Subaru Impreza IS 85 ft-lbs.
Q2 What IS the torque spec for the spark plugs in my 1992-2000 Subaru Impreza?
What IS the torque spec for the spark plugs in my 1992-2000 Subaru Impreza?
The torque spec for the spark plugs in a 1992-2000 Subaru Impreza IS 18 ft-lbs.
Q3 What IS the torque spec for the oil pan drain plug on my 1992-2000 Subaru Impreza?
What IS the torque spec for the oil pan drain plug on my 1992-2000 Subaru Impreza?
The torque spec for the oil pan drain plug on a 1992-2000 Subaru Impreza IS 22 ft-lbs.
Q4 What type of torque wrench should I use to tighten bolts on my 1992-2000 Subaru Impreza?
What type of torque wrench should I use to tighten bolts on my 1992-2000 Subaru Impreza?
It IS recommended to use a click-type torque wrench to ensure accurate torque application on your 1992-2000 Subaru Impreza.
Q5 IS it important to follow the specified torque values for my 1992-2000 Subaru Impreza?
IS it important to follow the specified torque values for my 1992-2000 Subaru Impreza?
Yes, it IS crucial to adhere to the specified torque values for your 1992-2000 Subaru Impreza to prevent damage to components, ensure proper assembly, and maintain vehicle safety.
Q6 Can I use a regular wrench to tighten bolts on my 1992-2000 Subaru Impreza?
Can I use a regular wrench to tighten bolts on my 1992-2000 Subaru Impreza?
While it IS possible to use a regular wrench, it IS not recommended as it can be difficult to achieve accurate torque values and could lead to over-tightening or under-tightening.
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)
Recommended for precise tightening of fasteners within the specified torque range, ensuring proper assembly and preventing damage.
- Digital display for accurate readings
- Audible signal when target torque IS reached
Service Procedures
Engine Components Torque Specifications
Refer to the following table for tightening torque values for specific engine components.
Suspension and Steering Torque Specifications
Tighten suspension and steering components to the specified torque values for optimal performance and safety.
Brake System Torque Specifications
Ensure the proper functioning and safety of the braking system by following the recommended torque values when tightening its components.
Technical Service Bulletins
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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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About the Author
Expert automotive knowledge and experience
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Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
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Expert in both traditional mechanical repairs and modern vehicle systems.
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Created over 500 detailed repair guides and technical documents.
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Certifications
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