Acura ILX 2022-present 2.4L Engine Bolt Torque Specifications
Detailed torque specifications for various bolts on the 2.4L engine in the 2022 and later Acura ILX. Includes cylinder head, intake manifold, exhaust manifold, and other critical fasteners.
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
Cylinder Head And Valvetrain
Components related to the cylinder head, camshafts, and valvetrain, ensuring proper sealing, timing, and lubrication.
1 Cylinder Head Bolts
M10 x 1.25
Cylinder Head Bolts
M10 x 1.25Important Notes
2 Camshaft Cap Bolts
M6 x 1.0
Camshaft Cap Bolts
M6 x 1.0Torque Value
Important Notes
3 Camshaft Sprocket Bolts
M10 x 1.25
Camshaft Sprocket Bolts
M10 x 1.25Torque Value
Important Notes
4 Valve Cover Bolts
M6 x 1.0
Valve Cover Bolts
M6 x 1.0Torque Value
Important Notes
Crankshaft And Connecting Rods
Components related to the crankshaft, connecting rods, and associated fasteners, ensuring smooth engine operation.
1 Main Bearing Cap Bolts
M10 x 1.25
Main Bearing Cap Bolts
M10 x 1.25Torque Value
Important Notes
2 Connecting Rod Cap Bolts
M8 x 1.25
Connecting Rod Cap Bolts
M8 x 1.25Important Notes
3 Flywheel/Flexplate Bolts
M12 x 1.25
Flywheel/Flexplate Bolts
M12 x 1.25Torque Value
Important Notes
Intake And Exhaust Systems
Components related to the intake and exhaust manifolds, ensuring proper sealing and engine efficiency.
1 Intake Manifold Bolts
M8 x 1.25
Intake Manifold Bolts
M8 x 1.25Torque Value
Important Notes
2 Exhaust Manifold Bolts
M8 x 1.25
Exhaust Manifold Bolts
M8 x 1.25Torque Value
Important Notes
Lubrication And Cooling Systems
Components related to the oil pan, oil filter housing, and water pump, ensuring proper lubrication and cooling system integrity.
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
2 Oil Filter Housing Bolts
M6 x 1.0
Oil Filter Housing Bolts
M6 x 1.0Torque Value
Important Notes
3 Water Pump Bolts
M6 x 1.0
Water Pump Bolts
M6 x 1.0Torque 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 the 2.4L engine?
Why are torque specifications important when working on the 2.4L engine?
Correct torque specifications are crucial for ensuring proper clamping force between engine components. Over-tightening can lead to damaged threads, stretched bolts, or distorted parts, causing leaks or component failure. Under-tightening can result in loose connections, also leading to leaks, vibrations, or component damage. Using a torque wrench is essential for accurate tightening.
Q2 What happens if I don't use a torque wrench?
What happens if I don't use a torque wrench?
Without a torque wrench, it’s very difficult to achieve the correct torque. You might over-tighten, potentially stripping threads or damaging gaskets, or under-tighten, leading to leaks and component failure. For example, over-tightening a cylinder head bolt can warp the head, and under-tightening an oil drain plug can result in oil leaks and eventual engine damage. A torque wrench provides the required precision to avoid these problems.
Q3 Are there different torque specs for new vs. used bolts?
Are there different torque specs for new vs. used bolts?
Generally, torque specs apply to new, clean bolts. If reusing bolts, especially those that undergo high stress (like cylinder head bolts), it's best practice to replace them to ensure accurate torque and proper clamping force. Some torque specs might require an additional degree rotation after reaching a certain torque spec, and this is especially relevant for high torque components. If re-using a fastener, inspect it for damage and cleanliness and follow the manufacturer's recommendations. If unsure, always use new fasteners. Always consult the repair manual for bolt usage guidelines.
Q4 What kind of lubrication should I use on engine bolts?
What kind of lubrication should I use on engine bolts?
The lubrication needs to be specific to the application. Most engine bolts require a clean, dry thread unless the specification states otherwise. Bolts that run into liquids, such as the oil pan bolts, may require a small amount of thread sealant as noted by the repair manual. Some bolts may require oil, or anti-seize, depending on their purpose. The service manual for the 2022+ Acura ILX with a 2.4L engine will have specific lubrication information. Applying incorrect lubrication can drastically alter the required torque and clamp load and cause fastener failure.
Q5 Where can I find the specific torque specs for my 2022+ Acura ILX 2.4L engine?
Where can I find the specific torque specs for my 2022+ Acura ILX 2.4L engine?
The most reliable source for torque specifications is the official Acura service manual for your specific model year. You can also find some information online from reputable automotive repair resources, but verify those against the service manual, whenever possible. Avoid using generic torque specs from other platforms as variations can exist. Always prioritize accuracy for engine work.
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
A precision tool for applying accurate torque to engine bolts.
- Adjustable torque settings
- Digital display for precise readings
Torque Angle Gauge
Used to measure the angle of rotation when applying torque to bolts.
- Magnetic base for easy attachment
- Clear angle markings for accuracy
Engine Bolt Socket Set
A set of sockets specifically designed for engine bolt sizes.
- Includes sizes for 2.4L engine bolts
- Durable construction for repeated use
Service Procedures
Cylinder Head Bolt Torque Procedure
Detailed steps for applying the correct torque to cylinder head bolts on the 2.4L engine.
- Clean the bolt threads and bolt holes thoroughly.
- Apply engine oil to the threads and under the bolt heads.
- Tighten bolts in the specified sequence to the initial torque value.
- Use a torque angle gauge to apply the final torque angle as specified.
Main Bearing Cap Bolt Torque Procedure
Procedure for torquing main bearing cap bolts on the 2.4L engine.
- Ensure the bearing caps and engine block surfaces are clean and free of debris.
- Apply a light coat of engine oil to the bolt threads.
- Tighten bolts in the specified sequence to the initial torque value.
- Use a torque angle gauge to apply the final torque angle as specified.
Technical Service Bulletins
Incorrect Torque Specifications for 2.4L Engine Bolts
2023-05-15Reports of incorrect torque specifications being used for certain engine bolts, leading to potential engine damage.
Resolution: Refer to the updated torque specifications in the service manual and ensure all bolts are torqued correctly during assembly.
Cylinder Head Bolt Failure Due to Improper Torque
2023-08-10Instances of cylinder head bolt failure caused by improper torque application.
Resolution: Follow the updated torque procedure and use a torque angle gauge to ensure proper bolt tightening.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.
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.