Acura ZDX 2010-2013 H6 Transmission Torque Specifications
Detailed torque specifications for all bolts on the H6 automatic transmission of the 2010-2013 Acura ZDX, including bellhousing, pan, and mount 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
Transmission Mounting
Torque specifications for components related to mounting the transmission to the engine and/or chassis.
1 Transmission Mounting Bolts
M12 x 1.75 (Estimated)
Transmission Mounting Bolts
M12 x 1.75 (Estimated)Torque Value
Important Notes
2 Transmission Bellhousing Bolts
M12 x 1.75 (Estimated)
Transmission Bellhousing Bolts
M12 x 1.75 (Estimated)Torque Value
Important Notes
Transmission Case
Torque specifications for bolts securing the transmission case components.
1 Transmission Case Bolts (Various Locations)
M8 x 1.25 (Estimated)
Transmission Case Bolts (Various Locations)
M8 x 1.25 (Estimated)Torque Value
Important Notes
Transmission Lubrication
Torque specifications for components related to the transmission lubrication system.
1 Transmission Oil Pan Bolts
M6 x 1.0 (Estimated)
Transmission Oil Pan Bolts
M6 x 1.0 (Estimated)Torque Value
Important Notes
2 Transmission Drain and Fill Plugs
M18 x 1.5 (Estimated)
Transmission Drain and Fill Plugs
M18 x 1.5 (Estimated)Torque Value
Important Notes
3 Transmission Cooler Line Fittings
M10 x 1.25 (Estimated)
Transmission Cooler Line Fittings
M10 x 1.25 (Estimated)Torque Value
Important Notes
Transmission Output
Torque specifications for components related to the transmission output and drive axles.
1 Drive Axle/Half Shaft Bolts
M10 x 1.5 (Estimated)
Drive Axle/Half Shaft Bolts
M10 x 1.5 (Estimated)Torque Value
Important Notes
2 CV Joint/Axle Nut
M24 x 1.5 (Estimated)
CV Joint/Axle Nut
M24 x 1.5 (Estimated)Torque Value
Important Notes
Transmission Controls
Torque specifications for components related to the transmission controls and sensors.
1 Shift Linkage Bolts
M8 x 1.25 (Estimated)
Shift Linkage Bolts
M8 x 1.25 (Estimated)Torque Value
Important Notes
2 Transmission Speed Sensor Mounting Bolt
M6 x 1.0 (Estimated)
Transmission Speed Sensor Mounting Bolt
M6 x 1.0 (Estimated)Torque 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 for H6 transmission bolts?
Why is it important to use the correct torque specifications for H6 transmission bolts?
Using the correct torque specifications is crucial to ensure proper clamping force and avoid damage. Over-tightening can strip threads or crack components, while under-tightening can lead to loosening, fluid leaks, and potentially catastrophic failure of the transmission or its mounting. Proper torque ensures a secure and reliable connection.
Q2 What happens if I over-torque the transmission bolts?
What happens if I over-torque the transmission bolts?
Over-torquing transmission bolts can lead to several issues. Primarily, it can stretch or break the bolt itself, damage the threads in the transmission housing or subframe, or distort the mounting flange. This can necessitate costly repairs, such as replacing the transmission case or repairing stripped threads. In a real-world scenario, you might hear a sharp crack during tightening, followed by a loose bolt or, worse, an unusable threaded hole.
Q3 Can I reuse transmission bolts after removing them?
Can I reuse transmission bolts after removing them?
While some bolts may be reusable, it is generally recommended to replace torque-to-yield (TTY) bolts or bolts that have experienced significant stress with new ones. Transmission bolts, especially those related to the bellhousing or mounts, should be inspected for damage or elongation after removal. If any doubt exists, replacement is recommended. Using new bolts helps ensure accurate torque values are achieved and reduces the risk of failure due to metal fatigue from previous use. For example, if a bolt is visibly stretched or distorted it should not be reused, even if it torques down.
Q4 Should I use any thread lubricant on the H6 transmission bolts?
Should I use any thread lubricant on the H6 transmission bolts?
Thread lubricant usage depends on the manufacturer's recommendations. Generally, transmission mounting bolts do not require any lubricant or antiseize compound unless specified in the service manual. Applying lubricant where not intended can alter the friction coefficient which affects the achieved clamping force at the given torque value, leading to either over or under-torque. Always consult the Acura service manual for specific instructions pertaining to your model and transmission.
Q5 How often should I check the torque on my transmission bolts?
How often should I check the torque on my transmission bolts?
Generally, torque checks are not a part of routine maintenance unless you have removed or loosened the bolts for servicing. However, after significant work involving the transmission or its mounts, it's recommended to recheck the torque after a short period of driving. For example, if you replace a transmission mount, check bolt torque after 50-100 miles.
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 inch drive)
A calibrated torque wrench is essential for accurate bolt tightening to prevent over or under-tightening of transmission components.
- 1/2 inch drive for common bolt sizes
- Wide torque range to cover all transmission bolts
- Click-type mechanism for precise settings
Torque Wrench (3/8 inch drive)
A calibrated torque wrench is essential for accurate bolt tightening to prevent over or under-tightening of smaller transmission components.
- 3/8 inch drive for smaller bolts
- Lower torque range suitable for specific applications
- Click-type mechanism for precise settings
Socket Set (Metric)
A comprehensive set of metric sockets is necessary to fit all the different bolt head sizes found on the transmission.
- Variety of sizes for different bolt heads
- 6-point design for better grip
- Durable construction
Extension Bars
Extension bars provide extra reach for accessing bolts in tight spaces around the transmission.
- Various lengths for different access needs
- Secure locking mechanism
- Durable material
Universal Joint
A universal joint allows access to bolts that are at an angle.
- Allows for angled socket placement
- Strong joint for good torque transfer
- Durable construction
Service Procedures
H6 Transmission Mounting Bolt Torque Procedure
This procedure outlines the process of tightening the bolts that secure the H6 transmission to the engine and chassis.
- 1. Locate all transmission mounting bolts.
- 2. Hand-tighten all mounting bolts in a star pattern to ensure even pressure.
- 3. Using the correct torque wrench and socket, tighten the bell housing bolts to 47 ft-lbs (64 N-m).
- 4. Using the correct torque wrench and socket, tighten the transmission mount bolts to 40 ft-lbs (54 N-m)
- 5. Double-check all bolt torques to confirm proper tightening.
- 6. Reinstall all other removed components.
H6 Transmission Fluid Pan Bolt Torque Procedure
This procedure outlines the process of tightening the bolts that secure the H6 transmission fluid pan.
- 1. Locate all fluid pan bolts.
- 2. Hand-tighten all fluid pan bolts in a star pattern to ensure even pressure.
- 3. Using the correct torque wrench and socket, tighten all bolts to 10 ft-lbs (14 N-m).
- 4. Double-check all bolt torques to confirm proper tightening.
H6 Transmission Fill Plug Torque Procedure
This procedure outlines the process of tightening the H6 transmission fill plug.
- 1. Locate the transmission fill plug.
- 2. Using the correct torque wrench and socket or allen, tighten the fill plug to 33 ft-lbs (45 N-m).
- 3. Double-check the fill plug torque to confirm proper tightening.
Technical Service Bulletins
Transmission Oil Leak from Bell Housing
2012-05-15Reports of transmission oil leaks originating from the bell housing area due to improperly torqued bolts or damaged seals.
Resolution: Inspect all bell housing bolts and their torque. Replace the input shaft seal and any damaged o-rings or gaskets. Ensure proper torque is applied to all bolts upon reassembly.
Transmission Mount Bolt Loosening
2011-11-20Some instances of the transmission mount bolts loosening have been reported, causing excessive movement and potential damage.
Resolution: Inspect transmission mount bolts for proper torque. Apply thread locking compound to the bolts and re-torque to specification to prevent future loosening. Check the mounts for wear.
Fluid Pan Bolt Leak
2013-02-28Reports of leaks at the transmission oil pan due to inadequate tightening or damaged gaskets.
Resolution: Inspect fluid pan bolts and gasket. Replace gasket if damaged, and apply thread locking compound to the bolts and re-torque to specification. Ensure the pan mating surface is clean before install.
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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.