Acura Integra 1989-1993 Brake System Bolt Torque Specifications
Comprehensive list of torque specifications for brake system bolts on the 1989-1993 Acura Integra, including caliper brackets, calipers, and other related components.
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
Search Specifications
Search by component name, bolt size, or description
Torque Calculator
Convert between different torque units
Brake Caliper
This subsystem includes all components related to the brake caliper, which houses the brake pads and applies pressure to the brake rotor.
1 Brake Caliper Bolts
M10 x 1.25
Brake Caliper Bolts
M10 x 1.25Torque Value
Important Notes
2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Torque Value
Important Notes
Brake Disc Drum
This subsystem includes all components related to the brake disc or drum, which provides the friction surface for the brake pads to act on.
1 Brake Disc/Drum Retaining Bolts
M6 x 1.0
Brake Disc/Drum Retaining Bolts
M6 x 1.0Torque Value
Important Notes
Wheel Hub
This subsystem includes all components related to the wheel hub, which connects the wheel to the vehicle and supports the brake rotor.
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Torque Value
Important Notes
Brake Hose
This subsystem includes all components related to the brake hose, which carries brake fluid from the brake lines to the caliper.
1 Brake Hose Mounting Bolts
M8 x 1.25
Brake Hose Mounting Bolts
M8 x 1.25Torque Value
Important Notes
Master Cylinder
This subsystem includes all components related to the master cylinder, which generates hydraulic pressure for the brake system.
1 Master Cylinder Mounting Bolts
M8 x 1.25
Master Cylinder Mounting Bolts
M8 x 1.25Torque Value
Important Notes
Brake Booster
This subsystem includes all components related to the brake booster, which amplifies the force applied to the brake pedal.
1 Brake Booster Mounting Bolts
M8 x 1.25
Brake Booster Mounting Bolts
M8 x 1.25Torque Value
Important Notes
Abs Hydraulic Unit
This subsystem includes all components related to the ABS hydraulic unit, which modulates brake pressure to prevent wheel lock-up.
1 ABS Hydraulic Unit Mounting Bolts
M8 x 1.25
ABS Hydraulic Unit Mounting Bolts
M8 x 1.25Torque Value
Important Notes
Troubleshooting 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 Why is it important to use a torque wrench when working on brake components?
Why is it important to use a torque wrench when working on brake components?
Using a torque wrench ensures that bolts are tightened to the manufacturer's specified torque, preventing over-tightening, which can damage threads or warp components, and under-tightening, which can lead to loose bolts and potential brake failure. Correct torque is crucial for even clamping force and proper brake system function.
Q2 What happens if I over-torque brake caliper bolts?
What happens if I over-torque brake caliper bolts?
Over-torquing brake caliper bolts can stretch or break the bolt, damage the caliper threads, or even warp the caliper bracket. This can cause the caliper to not properly align and can eventually lead to brake failure. Always use a torque wrench set to the proper specification.
Q3 Can I reuse brake caliper bolts?
Can I reuse brake caliper bolts?
While it may be tempting to reuse caliper bolts, it's generally recommended to replace them with new ones. These bolts can stretch over time and from high heat cycles and can lose their ability to maintain proper torque. Using new bolts is cheap insurance for safe braking.
Q4 What should I do if a bolt feels stripped or the threads are damaged?
What should I do if a bolt feels stripped or the threads are damaged?
If a bolt feels stripped or the threads are damaged, do not attempt to force it. You will need to repair the threads by chasing or re-tapping them. If the threads are damaged beyond repair you will need to replace the affected part. Using a damaged bolt or damaged threads is highly dangerous and could lead to brake system failure.
Q5 Should I use thread locker on brake bolts?
Should I use thread locker on brake bolts?
A thread locker is generally not required on most brake bolts, but a medium-strength thread locker like Loctite 242 (blue) can be used as added insurance against vibration loosening. The critical thing is to correctly torque each bolt, as this is the primary factor in maintaining joint integrity.
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
Torque Wrench
A calibrated tool used to apply specific torque to fasteners.
- Adjustable torque settings
- Click-type mechanism for accurate torque application
Socket Set
A set of sockets in various sizes to fit the brake system fasteners.
- Various socket sizes
- 6-point or 12-point options for different fastener types
Wrench Set
Open-ended wrenches in various sizes.
- Various wrench sizes
- Used for holding bolts or nuts while tightening
Brake Caliper Compressor Tool
Used to compress the brake caliper pistons.
- Compresses pistons back into their bores
- Prevents damage to the caliper
Service Procedures
Front Brake Caliper Mounting Bolts Torque Procedure
Procedure for properly torquing the front brake caliper mounting bolts.
- Locate the front brake caliper mounting bolts.
- Using a socket and torque wrench, tighten bolts to 43 Nm (32 lb-ft).
- Verify torque spec.
- Re-check all bolts after 100km or a week of driving.
Rear Brake Caliper Mounting Bolts Torque Procedure
Procedure for properly torquing the rear brake caliper mounting bolts.
- Locate the rear brake caliper mounting bolts.
- Using a socket and torque wrench, tighten bolts to 34 Nm (25 lb-ft).
- Verify torque spec.
- Re-check all bolts after 100km or a week of driving.
Front Brake Rotor Mounting Screws Torque Procedure
Procedure for torquing the front brake rotor mounting screws.
- Locate the front brake rotor mounting screws
- Using a socket and torque wrench, tighten screws to 11 Nm (8 lb-ft).
- Verify torque spec.
Rear Brake Rotor Mounting Screws Torque Procedure
Procedure for torquing the rear brake rotor mounting screws.
- Locate the rear brake rotor mounting screws
- Using a socket and torque wrench, tighten screws to 11 Nm (8 lb-ft).
- Verify torque spec.
Technical Service Bulletins
Brake Caliper Bolt Loosening Issues
1991-07-15Some early models may experience issues with brake caliper mounting bolts loosening over time due to excessive vibration.
Resolution: Use new bolts with thread locker during brake pad replacement. Always torque bolts to the manufacturer's specifications. Re-torque bolts after 100km or a week of driving.
Rotor Mounting Screw Breakage
1992-12-01Some models may experience breakages with front or rear rotor mounting screws.
Resolution: Ensure that the screws are not over-torqued during installation. Replace any corroded or damaged screws immediately. Torque to 11Nm (8 lb-ft) only.
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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.