Acura ZDX 2010-2013 Drivetrain Bolt Torque Specifications
Comprehensive guide to drivetrain bolt torque specifications for the 2010-2013 Acura ZDX, including driveshaft, differential, and axle 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
Engine Flywheel
Torque specifications for the flywheel and related components.
1 Flywheel Bolts
M10 x 1.5
Flywheel Bolts
M10 x 1.5Torque Value
Important Notes
Transmission System
Torque specifications for transmission components.
1 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Torque Value
Important Notes
2 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
3 Transmission Drain/Fill Plugs
M18 x 1.5
Transmission Drain/Fill Plugs
M18 x 1.5Torque Value
Important Notes
4 Torque Converter Bolts
M10 x 1.25
Torque Converter Bolts
M10 x 1.25Torque Value
Important Notes
Drive Axle System
Torque specifications for drive axle and related components.
1 Drive Axle/Half Shaft Bolts
M10 x 1.5
Drive Axle/Half Shaft Bolts
M10 x 1.5Torque Value
Important Notes
2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5Torque Value
Important Notes
3 Front Drive Axle to Transfer Case Flange Bolts
M10 x 1.5
Front Drive Axle to Transfer Case Flange Bolts
M10 x 1.5Torque Value
Important Notes
Driveshaft System
Torque specifications for driveshaft components.
1 Propeller/Drive Shaft Bolts
M10 x 1.25
Propeller/Drive Shaft Bolts
M10 x 1.25Torque Value
Important Notes
2 Rear Differential Output Shaft Flange Bolts
M10 x 1.5
Rear Differential Output Shaft Flange Bolts
M10 x 1.5Torque Value
Important Notes
3 Front Differential Output Shaft Flange Bolts
M10 x 1.5
Front Differential Output Shaft Flange Bolts
M10 x 1.5Torque Value
Important Notes
Differential System
Torque specifications for differential components.
1 Differential Drain/Fill Plug
M18 x 1.5
Differential Drain/Fill Plug
M18 x 1.5Torque Value
Important Notes
2 Differential Mounting Bolts
M12 x 1.75
Differential Mounting Bolts
M12 x 1.75Torque Value
Important Notes
Transfer Case System
Torque specifications for transfer case components.
1 Transfer Case Drain/Fill Plug
M18 x 1.5
Transfer Case Drain/Fill Plug
M18 x 1.5Torque Value
Important Notes
2 Transfer Case Mounting Bolts
M12 x 1.75
Transfer Case Mounting Bolts
M12 x 1.75Torque Value
Important Notes
Intermediate Shaft System
Torque specifications for intermediate shaft components.
1 Intermediate Shaft Bearing Bracket Bolts
M10 x 1.5
Intermediate Shaft Bearing Bracket Bolts
M10 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 for drivetrain bolts?
Why are torque specifications important for drivetrain bolts?
Correct torque is crucial for maintaining joint integrity. Under-torquing can lead to loosening, vibration, and component failure, while over-torquing can damage threads, bolts, and components, potentially leading to catastrophic failure. Proper torque ensures that the clamping force is correct, securing the drivetrain components effectively.
Q2 What happens if I don't use a torque wrench?
What happens if I don't use a torque wrench?
Using a wrench without a torque spec will likely result in inaccurate tightening. You risk either under-tightening, which can lead to bolts coming loose over time, or over-tightening, which can shear bolts, damage threads, or crush gaskets. A torque wrench is essential for accurate and consistent tightening.
Q3 Can I reuse drivetrain bolts?
Can I reuse drivetrain bolts?
Generally, it is recommended to replace certain drivetrain bolts, especially those that are torque-to-yield (TTY) or stretch bolts, as they are designed to permanently deform when tightened. Reusing these bolts can result in improper clamping force and potential failure. Consult the service manual to determine which bolts must be replaced. Other bolts may be reusable, but ensure they are in good condition before doing so.
Q4 What does 'torque-to-yield' mean?
What does 'torque-to-yield' mean?
Torque-to-yield (TTY) bolts are designed to stretch slightly beyond their elastic limit when tightened. This creates a very precise clamping force. These bolts must always be replaced after removal because they have been permanently deformed and cannot be reused safely or effectively.
Q5 Do I need to use threadlocker on drivetrain bolts?
Do I need to use threadlocker on drivetrain bolts?
Threadlocker, such as Loctite, is not always required for drivetrain bolts. However, certain applications may specify its use in the service manual, especially in high-vibration areas like driveshaft bolts or differential mounts. Always refer to the specific torque specifications and any notes about threadlocker requirements in the service manual for your Acura ZDX.
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 calibrated torque wrench with a 1/2" drive is essential for achieving accurate torque values on larger drivetrain bolts.
- Click-type mechanism
- Wide torque range (e.g., 20-150 ft-lbs)
Torque Wrench (3/8" Drive)
A calibrated torque wrench with a 3/8" drive is suitable for smaller drivetrain bolts and fasteners where higher torque values are not needed.
- Click-type mechanism
- Torque range appropriate for smaller bolts (e.g., 5-80 ft-lbs)
Socket Set (Metric)
A comprehensive metric socket set is needed to fit various bolt head sizes on the drivetrain components.
- Variety of sizes including 10mm, 12mm, 14mm, 17mm, 19mm
- 6-point sockets for better grip
Socket Extensions
Socket extensions of various lengths will be needed to reach recessed bolts.
- 3 inch, 6 inch, 10 inch extensions
- Durable Steel construction
Universal Joint Adapter
A universal joint adapter will allow access to bolts at angles.
- Durable steel construction
- 1/2 inch and 3/8 inch drives available
Service Procedures
Front Axle Nut Torque Procedure
This procedure outlines how to correctly torque the front axle nuts on the 2010-2013 Acura ZDX.
- Raise the vehicle and secure it on jack stands.
- Remove the wheel from the side you will be working on.
- Install a new axle nut.
- Using a torque wrench, tighten the axle nut to 181 lb-ft (245 Nm).
- Lower the vehicle.
- Recheck torque after driving 20-50 miles
Driveshaft Bolt Torque Procedure
This procedure outlines the correct torque sequence and values for the bolts securing the driveshaft to the transmission and rear differential.
- Raise the vehicle and secure it on jack stands.
- Locate the driveshaft mounting bolts on the transmission and rear differential.
- Using the proper socket, begin tightening the bolts by hand until snug
- Tighten the bolts on the transmission to 37 lb-ft (50 Nm) with a torque wrench in a star pattern.
- Tighten the bolts on the rear differential to 40 lb-ft (54 Nm) with a torque wrench in a star pattern.
- Lower the vehicle.
Rear Differential Mounting Bolt Torque Procedure
This procedure outlines the torque values for the bolts securing the rear differential to the chassis.
- Raise the vehicle and secure it on jack stands.
- Locate the rear differential mounting bolts.
- Using the proper socket, begin tightening the bolts by hand until snug.
- Using a torque wrench, tighten the bolts to 55 lb-ft (75 Nm).
- Lower the vehicle.
Technical Service Bulletins
Driveshaft Vibration Diagnostic
2012-05-15Some 2010-2013 Acura ZDX models may experience driveshaft vibration. This bulletin describes the diagnostic procedure.
Resolution: Check for proper driveshaft balance and torque. Replace if necessary.
Rear Differential Noise Inspection
2011-11-20Some 2010-2012 Acura ZDX models may experience a whining noise from the rear differential, check the fluid and the mounting bolts.
Resolution: Inspect fluid level and condition, verify correct mounting bolt torque. Replace differential if necessary.
Front Axle Click Noise
2013-02-01Some 2010-2013 ZDX models may exhibit a clicking noise from the front axles. Verify correct axle nut torque and inspect for damage.
Resolution: Verify the axle nut torque is 181 lb-ft (245 Nm). Inspect the axle and CV joint for wear.
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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.