Acura Integra 1985-1989 Brake System Bolt Torque Specifications
Detailed torque specifications for brake system bolts on the 1985-1989 Acura Integra, including caliper bolts, bracket bolts, and banjo bolts.
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
The brake caliper assembly includes components that secure the caliper to the vehicle and ensure proper brake pad alignment and operation.
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 1.75
Brake Caliper Mounting Bracket Bolts
M12 x 1.75Torque Value
Important Notes
Brake Disc Drum
Includes bolts that secure the brake disc or drum to the hub, ensuring proper alignment and stability during braking.
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
Brake Disc/Drum Retaining Bolts
M8 x 1.25Torque Value
Important Notes
Brake Hydraulic
Components of the brake hydraulic system, including hose connections and master cylinder attachments.
1 Brake Hose Banjo Bolt
M10 x 1.0
Brake Hose Banjo Bolt
M10 x 1.0Torque Value
Important Notes
2 Brake Master Cylinder Mounting Bolts
M8 x 1.25
Brake Master Cylinder Mounting Bolts
M8 x 1.25Torque Value
Important Notes
Brake Pedal
Bolts that secure the brake pedal assembly to the firewall or bracket, ensuring proper pedal operation.
1 Brake Pedal Bracket Bolts
M8 x 1.25
Brake Pedal Bracket Bolts
M8 x 1.25Torque Value
Important Notes
Brake Bleeding
Includes bleeder screws used to remove air from the brake lines.
1 Brake Bleeder Screws
M6 x 1.0
Brake Bleeder Screws
M6 x 1.0Torque Value
Important Notes
Wheel Assembly
Includes lug nuts that secure the wheel to the hub, indirectly affecting brake rotor alignment.
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Torque 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 are torque specifications important when working on brakes?
Why are torque specifications important when working on brakes?
Correct torque is crucial for brake safety and performance. Over-tightening can damage components or cause them to fail prematurely. Under-tightening can lead to parts loosening, potentially causing brake failure. For example, lug nuts torqued too loosely can cause a wheel to detach, while an over-tightened caliper bolt can strip threads and make the repair difficult. Proper torque ensures the clamping force is correct.
Q2 What happens if I don't have a torque wrench?
What happens if I don't have a torque wrench?
A torque wrench is the best tool for the job, ensuring precise tightening. If you don't have one, you could try to hand-tighten, but this is risky and not recommended. If you must, go slightly tighter than hand-tight but do NOT over tighten. It's safer to drive to a shop with loose bolts that could tighten while driving instead of driving with over-tight bolts. It is essential to borrow, rent, or buy a torque wrench for brake work. In the absence of this, after hand tightening, go slowly and take your vehicle to a shop that can torque to specification. Use an impact wrench ONLY with extreme caution, and only for initial tightening and then finish using a torque wrench.
Q3 How often should I check the torque on my brake components?
How often should I check the torque on my brake components?
It's a good practice to check the torque on your wheel lug nuts after any wheel removal or brake work. After driving for 50-100 miles, it's recommended to re-torque to ensure that settling did not occur. Other brake components don't need regular re-torquing once properly installed. However, anytime you suspect unusual noise or vibration coming from the braking system, check the torque of those specific parts.
Q4 What should I do if I strip a bolt when working on my brakes?
What should I do if I strip a bolt when working on my brakes?
If you strip a bolt, it's crucial to not force it further. Attempting to extract the stripped bolt yourself with inadequate tools or skills can make it worse. Stop and assess the damage. A stripped bolt often requires specialized tools for removal. It is typically recommended to have a professional mechanic handle a stripped bolt situation as they are equipped to deal with the problem safely and effectively. You will likely need to repair the damaged threads using a helicoil kit as well. Driving with a stripped bolt is not recommended and can lead to further damage.
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 (1/2" drive)
Used for tightening brake components to specified torque values.
- Measures torque accurately
- Click-type mechanism for easy use
Torque Wrench (3/8" drive)
Used for tightening smaller brake components to specified torque values.
- Measures torque accurately
- Click-type mechanism for easy use
Socket Set (Metric)
A set of sockets to fit various bolt and nut sizes on brake components.
- Various sizes from 8mm to 22mm
- Typically 6-point sockets
Wrench Set (Metric)
A set of wrenches to fit various bolt and nut sizes on brake components.
- Various sizes from 8mm to 22mm
- Combination wrenches
Service Procedures
Front Caliper Bracket Bolt Torque
Procedure for tightening the bolts securing the front brake caliper bracket to the knuckle.
- Locate the two bolts securing the front caliper bracket.
- Using the appropriate socket and torque wrench, tighten the bolts to 80 ft-lbs (108 Nm).
- Verify the torque by re-checking each bolt after tightening them all.
Front Caliper Guide Pin Bolt Torque
Procedure for tightening the bolts that secure the front brake caliper pins.
- Locate the two bolts that secure the front brake caliper guide pins.
- Using the appropriate socket and torque wrench, tighten the bolts to 17 ft-lbs (23 Nm).
- Verify the torque by re-checking each bolt after tightening them all.
Rear Caliper Bracket Bolt Torque
Procedure for tightening the bolts securing the rear brake caliper bracket to the trailing arm.
- Locate the two bolts securing the rear caliper bracket.
- Using the appropriate socket and torque wrench, tighten the bolts to 47 ft-lbs (64 Nm).
- Verify the torque by re-checking each bolt after tightening them all.
Rear Caliper Guide Pin Bolt Torque
Procedure for tightening the bolts that secure the rear brake caliper pins.
- Locate the two bolts that secure the rear brake caliper guide pins.
- Using the appropriate socket and torque wrench, tighten the bolts to 17 ft-lbs (23 Nm).
- Verify the torque by re-checking each bolt after tightening them all.
Master Cylinder Mounting Bolt Torque
Procedure for tightening the bolts that secure the master cylinder to the brake booster.
- Locate the two bolts that secure the master cylinder.
- Using the appropriate socket and torque wrench, tighten the bolts to 13 ft-lbs (18 Nm).
- Verify the torque by re-checking each bolt after tightening them all.
Technical Service Bulletins
Brake Squeal and Vibration
1987-06-15Addresses issues related to brake squealing and vibrations that were reported on 1985-1987 Integras
Resolution: Ensure all brake components are torqued to specification and use anti-squeal compound on the back of brake pads.
Front Caliper Bolt Loosening
1988-10-22Addresses reports of front caliper bolts loosening after extended use. Specifically, the caliper bracket bolts and guide pin bolts.
Resolution: Apply thread locker to front caliper bolts and ensure proper torque application.
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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.