Acura Integra 1989-1993 Suspension Bolt Torque Specifications
Comprehensive torque specifications for all suspension bolts on the 1989-1993 Acura Integra (DA/DB generation). Includes front and rear suspension components, control arms, shocks, and more.
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
Strut Shock Absorber
Components and fasteners related to the strut and shock absorber assembly, which provide damping and support for the suspension system.
1 Strut/Shock Absorber Mounting Bolts
M10 x 1.25
Strut/Shock Absorber Mounting Bolts
M10 x 1.25Torque Value
Important Notes
2 Strut Tower Mounting Bolts
M10 x 1.25
Strut Tower Mounting Bolts
M10 x 1.25Torque Value
Important Notes
Control Arm Ball Joint
Components and fasteners related to the control arm and ball joint assembly, which connect the suspension to the vehicle frame and steering knuckle.
1 Control Arm Bolts
M12 x 1.5
Control Arm Bolts
M12 x 1.5Torque Value
Important Notes
2 Ball Joint Nut
M12 x 1.25
Ball Joint Nut
M12 x 1.25Torque Value
Important Notes
Steering System
Components and fasteners related to the steering system, including tie rod ends and steering knuckles.
1 Tie Rod End Nut
M10 x 1.25
Tie Rod End Nut
M10 x 1.25Torque Value
Important Notes
2 Steering Knuckle Bolts
M12 x 1.5
Steering Knuckle Bolts
M12 x 1.5Torque Value
Important Notes
Sway Bar System
Components and fasteners related to the sway bar and its mounting brackets, which control body roll during cornering.
1 Sway Bar Link Nut
M8 x 1.25
Sway Bar Link Nut
M8 x 1.25Torque Value
Important Notes
2 Sway Bar Bracket Bolts
M8 x 1.25
Sway Bar Bracket Bolts
M8 x 1.25Torque Value
Important Notes
Subframe System
Components and fasteners related to the subframe, which supports the engine, suspension, and other critical components.
1 Subframe Mounting Bolts
M14 x 1.5
Subframe Mounting Bolts
M14 x 1.5Important Notes
Wheel System
Components and fasteners related to the wheels and their mounting, ensuring secure attachment and proper 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 is it important to use the correct torque specifications?
Why is it important to use the correct torque specifications?
Using the correct torque specifications is crucial for the safe and reliable operation of your Integra's suspension. Over-tightening can damage bolts, threads, and suspension components, leading to premature failure. Under-tightening can cause components to loosen, leading to instability, noise, and potential accidents. Properly torqued bolts ensure correct clamping force, preventing movement and maintaining the intended geometry of the suspension system.
Q2 Should I use new bolts when reassembling my suspension?
Should I use new bolts when reassembling my suspension?
It is highly recommended to replace certain bolts, especially those that are torque-to-yield (TTY) or have been previously stressed. For suspension components, especially critical fasteners like the lower control arm bolts, it is best practice to replace these when disassembled. This will help guarantee proper clamping force and avoid potential failure or future issues. Check your service manual for specific recommendations on bolt replacement.
Q3 What type of lubricant should I use when installing suspension bolts?
What type of lubricant should I use when installing suspension bolts?
Generally, clean threads and dry hardware are sufficient for most suspension bolts. However, some manufacturers recommend applying a light coating of anti-seize compound to the threads, specifically on components susceptible to rust, like those exposed to road salt. Be sure to verify your service manual to ensure that using anti-seize is permissible and that the torque specs aren’t adjusted to accommodate the lubrication. Incorrect lubrication can cause improper torque readings.
Q4 How often should I check the torque on my suspension bolts?
How often should I check the torque on my suspension bolts?
It's a good practice to check the torque on suspension components after any major work involving disassembly. Additionally, you should check the torque after the first 50-100 miles after any suspension work and then at least every 12 months, or whenever you have your vehicle serviced. Especially if you live in an area where you experience rough road conditions, it is best to adhere to more frequent inspections.
Q5 Can I use a regular wrench instead of a torque wrench?
Can I use a regular wrench instead of a torque wrench?
While a regular wrench can be used to loosely assemble components, it's never recommended to use one for final tightening of suspension bolts. A torque wrench is a precision tool that allows you to apply the correct amount of force, which is vital for the safety and performance of your suspension. Using only a standard wrench will most likely lead to under or over tightening of the components. This can and will cause unwanted damage, instability, and failure.
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 precision tool for applying specific torque to fasteners.
- Accurate torque measurement
- Click or digital display
- Various drive sizes (1/2", 3/8", 1/4")
Socket Set
A set of sockets of various sizes to fit suspension fasteners.
- Metric sizes
- 6-point or 12-point
- Various drive sizes (1/2", 3/8", 1/4")
Wrench Set
A set of open end wrenches for securing certain fasteners
- Metric sizes
- Various sizes
Extension Bars
Used with a socket for hard-to-reach fasteners.
- Various lengths
- Various drive sizes (1/2", 3/8", 1/4")
Service Procedures
Front Lower Control Arm Bolt Torque
Procedure for torquing the bolts that attach the front lower control arm to the chassis and knuckle.
- Locate the front lower control arm bolts connecting to the chassis and knuckle.
- Use the appropriate socket and torque wrench.
- Torque the bolts to the manufacturer's specification. Typically 54 ft-lbs for knuckle and 36 ft-lbs for the chassis.
Front Upper Control Arm Bolt Torque
Procedure for torquing the bolts that attach the front upper control arm to the chassis.
- Locate the front upper control arm bolts connecting to the chassis.
- Use the appropriate socket and torque wrench.
- Torque the bolts to the manufacturer's specification, typically 43 ft-lbs.
Rear Lower Control Arm Bolt Torque
Procedure for torquing the bolts that attach the rear lower control arm to the chassis and hub.
- Locate the rear lower control arm bolts connecting to the chassis and hub.
- Use the appropriate socket and torque wrench.
- Torque the bolts to the manufacturer's specification. Typically 58 ft-lbs for the hub and 36 ft-lbs for the chassis
Rear Upper Control Arm Bolt Torque
Procedure for torquing the bolts that attach the rear upper control arm to the chassis and hub.
- Locate the rear upper control arm bolts connecting to the chassis and hub.
- Use the appropriate socket and torque wrench.
- Torque the bolts to the manufacturer's specification. Typically 43 ft-lbs for the hub and 36 ft-lbs for the chassis
Shock Absorber Mounting Bolt Torque
Procedure for torquing the bolts that secure the shock absorbers.
- Locate the shock absorber mounting bolts at both top and bottom mounts.
- Use the appropriate socket and torque wrench.
- Torque the top mount to 33 ft-lbs and the bottom mount to 47 ft-lbs.
Technical Service Bulletins
Suspension Bolt Loosening Issues
1992-04-15Reports of suspension bolts loosening over time, leading to increased wear and instability.
Resolution: Inspect and retorque all suspension bolts at each oil change or every 3,000 miles. Replace any stretched or damaged bolts.
Proper Torque Sequence for Suspension Components
1990-11-01Document regarding the importance of following the correct torque sequence when installing suspension components to ensure proper alignment and prevent premature wear.
Resolution: Always torque suspension bolts in the sequence specified in the service manual, and gradually tighten them in multiple passes. Do final torque with suspension at normal ride height.
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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.