Acura TSX 2009-2014 H5 Transmission Torque Specifications
Detailed torque specifications for all bolts related to the H5 manual transmission found in the 2009-2014 Acura TSX. Includes bellhousing, case, and component bolt torque values.
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
H5-transmission Mounting
Torque specifications for mounting the H5 transmission to the engine and/or chassis.
1 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Torque Value
Important Notes
H5-transmission Case
Torque specifications for the H5 transmission case bolts.
1 Transmission Case Bolts
M10 x 1.5
Transmission Case Bolts
M10 x 1.5Torque Value
Important Notes
H5-transmission Oil Pan
Torque specifications for the H5 transmission oil pan.
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
H5-transmission Fluid Plugs
Torque specifications for the H5 transmission drain and fill plugs.
1 Transmission Drain and Fill Plugs
M18 x 1.5
Transmission Drain and Fill Plugs
M18 x 1.5Torque Value
Important Notes
H5-transmission Drive Axle
Torque specifications for H5 transmission drive axle/half shaft bolts.
1 Drive Axle/Half Shaft Bolts
M10 x 1.25
Drive Axle/Half Shaft Bolts
M10 x 1.25Torque Value
Important Notes
H5-transmission Clutch Components
Torque specifications for clutch components on the H5 transmission.
1 Clutch Pressure Plate Bolts
M8 x 1.25
Clutch Pressure Plate Bolts
M8 x 1.25Torque Value
Important Notes
2 Clutch Release Cylinder Bolts
M8 x 1.25
Clutch Release Cylinder Bolts
M8 x 1.25Torque Value
Important Notes
H5-transmission Shift Linkage
Torque specifications for the H5 transmission shift linkage components.
1 Shift Linkage Bolts/Nuts
M8 x 1.25
Shift Linkage Bolts/Nuts
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 What happens if I overtighten the transmission bolts?
What happens if I overtighten the transmission bolts?
Overtightening transmission bolts can cause several issues. It can strip the threads in the transmission case, which is expensive to repair. It can also deform the bolt, weakening it and potentially causing it to break later under stress. Additionally, excessive force on the bellhousing bolts can damage the mating surfaces, leading to leaks or improper alignment with the engine. It's crucial to use a calibrated torque wrench and follow the specified torque values exactly.
Q2 Can I reuse the transmission bolts?
Can I reuse the transmission bolts?
While transmission bolts *can* sometimes be reused, it's generally recommended to replace them, especially if they are torque-to-yield (TTY) bolts. TTY bolts are designed to stretch upon tightening, and reusing them may lead to inaccurate torque values and potential bolt failure. Additionally, bolts may have been stressed or damaged during their service life, leading to an uncertain future lifespan. For critical components like a transmission, it is better practice to use new, high-quality bolts.
Q3 Why are there different torque specifications for different transmission bolts?
Why are there different torque specifications for different transmission bolts?
Different transmission bolts serve different purposes and are made of materials with different tensile strength. For example, the bellhousing bolts that connect the transmission to the engine block may have a higher torque specification due to the significant loads and vibration they experience. Smaller bolts, such as those holding a sensor or cover, will have a lower torque spec. Torque specifications are precisely calculated to ensure proper clamping force without damaging the components or the bolts themselves. This ensures everything is properly attached and doesn’t loosen over time due to vibration.
Q4 Do I need to use threadlocker on transmission bolts?
Do I need to use threadlocker on transmission bolts?
The need for threadlocker on transmission bolts depends on the specific application. Typically, the OEM torque specifications for the H5 transmission do not require threadlocker. However, some bolts (such as those securing sensors or smaller components) *may* benefit from a low-strength threadlocker to prevent loosening due to vibration. Always refer to the factory service manual for each specific bolt location, and when in doubt, leave threadlocker out for bolts that do not explicitly call for it. If using threadlocker, ensure you use the correct type (usually low-strength or medium-strength) and follow its curing instructions before applying torque. Some threadlockers can interfere with torque readings, leading to improper 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
Torque Wrench (1/2" Drive)
A torque wrench is essential for accurately tightening bolts to the specified torque values. A 1/2" drive is recommended for the H5 transmission bolts.
- Accurate torque measurement
- Click-type or digital display
- Suitable torque range for transmission bolts
Torque Wrench (3/8" Drive)
A 3/8" drive torque wrench is useful for smaller bolts and hard to reach places when working on the H5 transmission.
- Accurate torque measurement
- Click-type or digital display
- Suitable torque range for smaller transmission bolts
Socket Set (1/2" Drive, Metric)
A set of metric sockets is needed to fit the various bolt heads on the transmission.
- Comprehensive range of metric sizes
- Durable construction
- Deep socket options
Socket Set (3/8" Drive, Metric)
A set of metric sockets in 3/8" drive allows for use with 3/8" torque wrenches and smaller bolts.
- Comprehensive range of metric sizes
- Durable construction
- Deep socket options
Torque Angle Meter (Optional)
A torque angle meter is useful for bolts that specify torque-to-yield tightening, though not commonly found on the H5 transmission.
- Measures angle after initial torque
- Increases accuracy for TTY bolts
Various Extensions and Swivels
Extensions and swivels are important to reach bolts on the H5 transmission which are hard to get to.
- Allows access to recessed bolts
- Increases maneuverability
- Various sizes and lengths
Service Procedures
H5 Transmission Mount Bolt Torque Procedure
Properly torquing the transmission mount bolts is crucial to ensure proper alignment and prevent vibrations. Failure to torque these to specification could cause the bolts to come loose.
- Locate all transmission mount bolts and identify their sizes.
- Using the correct metric socket and torque wrench, set the torque wrench to the specified value (typically around 47 ft-lbs, but verify using official service information for the exact spec).
- Tighten all the bolts in a star pattern to ensure even pressure, gradually reaching the final torque value.
- Double-check each bolt with the torque wrench to ensure all bolts are torqued correctly and evenly.
H5 Transmission Case Bolt Torque Procedure
Properly torquing the transmission case bolts is critical for preventing leaks and ensuring proper seal engagement. Failure to do so can cause leaks and damage to the transmission.
- Locate all transmission case bolts and identify their sizes.
- Using the correct metric socket and torque wrench, set the torque wrench to the specified value (typically around 16 ft-lbs, but verify using official service information for the exact spec).
- Tighten all the bolts in a star pattern to ensure even pressure, gradually reaching the final torque value.
- Double-check each bolt with the torque wrench to ensure all bolts are torqued correctly and evenly.
H5 Bellhousing Bolt Torque Procedure
Properly torquing the bellhousing bolts is critical for maintaining proper alignment between the transmission and the engine. This step is critical for proper alignment and operation.
- Locate all bellhousing bolts and identify their sizes.
- Using the correct metric socket and torque wrench, set the torque wrench to the specified value (typically around 47 ft-lbs for larger bolts and 16 ft-lbs for smaller bolts, but verify using official service information for the exact spec).
- Tighten all the bolts in a star pattern to ensure even pressure, gradually reaching the final torque value.
- Double-check each bolt with the torque wrench to ensure all bolts are torqued correctly and evenly.
Technical Service Bulletins
Incorrect Torque Specification for Transmission Case Bolts
2010-06-15Some early service manuals had incorrect torque specifications for the transmission case bolts. This can cause the transmission case to not seal properly causing leaks.
Resolution: Verify with the latest service manual and use the updated spec of 16 ft-lbs for the transmission case bolts.
Vibration Issues After Transmission Removal
2012-03-22Some reports of excess vibration after transmission removal and reinstallation have been attributed to improperly torqued transmission mount bolts. Verify all mount bolts are to the correct torque specification to resolve the issue.
Resolution: Retorque all transmission mount bolts to 47 ft-lbs in the star pattern.
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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.