Acura RLX 2014-2020 H6 Transmission Transmission Torque Specifications & Bolt Torque Values
Acura RLX 2014-2020

Acura RLX 2014-2020 H6 Transmission Torque Specifications

Detailed torque specifications for all bolts associated with the H6 automatic transmission in the 2014-2020 Acura RLX. This includes bellhousing, pan, and mount bolts.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

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.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

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.

Prevention:

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.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

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

H6-transmission Mounting

Torque specifications for securing the transmission to the engine and vehicle chassis.

1

Transmission Mounting Bolts

M12 x 1.75
Torque Value
47 ft-lbs (64 N·m)
Important Notes
These bolts secure the transmission to the engine block and/or vehicle frame. Proper torque is critical for alignment and stability.

H6-transmission Case

Torque specifications for transmission case bolts and housing components.

1

Transmission Case/Housing Bolts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Estimated torque value. Consult service manual for specific pattern. These bolts secure the transmission housing components together.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
8.7 ft-lbs (11.8 N·m)
Important Notes
Proper torque is critical to prevent leaks and damage to the oil pan. Do not overtighten.

H6-transmission Sensors

Torque specifications for various sensors attached to the transmission.

1

Transmission Range Sensor/Neutral Safety Switch Bolts

M6 x 1.0
Torque Value
8.7 ft-lbs (11.8 N·m)
Important Notes
Estimated torque value. Ensure correct sensor positioning. Do not overtighten.
2

Transmission Speed Sensor Bolts

M6 x 1.0
Torque Value
8.7 ft-lbs (11.8 N·m)
Important Notes
Estimated torque value. Ensure correct sensor positioning. Do not overtighten.

H6-transmission Fluid System

Torque specifications for fluid drain/fill plugs and cooler lines.

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
36 ft-lbs (49 N·m)
Important Notes
Proper torque prevents leaks and damage to the plugs/case.
2

Transmission Cooler Line Fittings

M12 x 1.5 (Banjo Bolt)
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Estimated torque value. Over-tightening can cause leaks or damage. Use new sealing washers.

H6-transmission Driveline

Torque specifications for driveline components connecting to the transmission.

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Value
47 ft-lbs (64 N·m)
Important Notes
Proper torque is essential for reliable power transfer. Use threadlocker if specified.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

1

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
2

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
3

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

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?

Overtightening transmission bolts can lead to several problems. It can strip the threads in the transmission case or the bolt itself, requiring costly repairs. It can also cause stress fractures in the case, or crush gaskets leading to leaks. For example, overtightening the bellhousing bolts can distort the housing and affect gear alignment, leading to premature wear.

Q2

What happens if I undertighten the transmission bolts?

Undertightening transmission bolts means they won't properly secure the transmission, leading to movement, vibrations, and potential leaks. For instance, if the transmission mount bolts are too loose, the engine/transmission assembly may shift, causing driveline vibrations or damage to related components. This can even result in bolts backing out completely, posing a significant safety risk.

Q3

Do I need to replace the bolts every time I remove them?

While not always mandatory, it's highly recommended to replace torque-to-yield bolts (TTY) and any bolts that show signs of stretching or damage. Many transmission bolts, especially on critical mounts and the bell housing, are TTY. These are designed to stretch upon installation and reusing them may not achieve the correct clamping force, causing premature failure. Using new bolts guarantees consistent and correct tightening.

Q4

Should I use thread locker on the transmission bolts?

Thread locker is generally not needed on transmission bolts unless specifically recommended by the manufacturer. If using it, use only a low-strength thread locker and follow the manufacturer's instructions on curing time. Applying a strong thread locker can make the bolts incredibly difficult to remove later, potentially damaging the transmission case.

Q5

What type of lubricant should I use on the transmission bolts before installing them?

It is generally recommended to use a light coating of clean engine oil or anti-seize compound on the threads of transmission bolts before installation. This facilitates smooth installation, prevents galling, and ensures accurate torque readings. Never install dry bolts as this can introduce inconsistencies with torque values.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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 accurately applying the specified torque to transmission bolts.

  • 1/2" drive for increased torque capacity
  • Click-type or digital readout for accuracy
  • Torque range covering the specified values
Learn more

Torque Wrench (3/8" Drive)

A smaller 3/8" drive torque wrench may be necessary for bolts with lower torque specifications in tighter areas.

  • 3/8" drive for versatility
  • Click-type or digital readout for accuracy
  • Torque range covering lower specified values
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is required to fit the various bolt head sizes on the transmission.

  • Standard and deep sockets
  • Sizes covering all transmission bolt heads
  • 1/2" and 3/8" drive compatible
Learn more

Extension Bars

Extension bars of varying lengths are useful for reaching recessed transmission bolts.

  • Various lengths for access
  • Durable construction
  • 1/2" and 3/8" drive compatible
Learn more

Universal Joint

A universal joint allows for access to bolts that are not directly accessible with a straight socket extension.

  • Flexible joint for difficult angles
  • Durable construction
  • 1/2" and 3/8" drive compatible
Learn more
Service Procedures

H6 Transmission Bolt Torque Procedure

This procedure outlines the steps for properly torquing the transmission bolts on a 2014-2020 Acura RLX. Always refer to the service manual for specific torque values.

  • 1. Identify the specific bolts to be torqued using the service manual diagrams. Note the location of each bolt.
  • 2. Clean any debris from the threads and bolt heads. Ensure both surfaces are clean for accurate torque application.
  • 3. Install the bolt by hand until snug. Avoid over-tightening at this stage.
  • 4. Set the torque wrench to the specified torque value for the bolt being torqued. Refer to the vehicle specific repair manual for torque specifications.
  • 5. Attach the correct socket and extension if needed to the torque wrench.
  • 6. Place the socket on the bolt head and apply torque smoothly and steadily until the torque wrench clicks or the desired value is reached.
  • 7. Double-check the torque on each bolt after the initial torque pass. Verify all bolts have been torqued appropriately.
  • 8. For bolts requiring a specific tightening sequence, follow the sequence in the service manual.
View full procedure

H6 Transmission Pan Bolt Torque Procedure

This procedure outlines the steps for properly torquing the transmission pan bolts on a 2014-2020 Acura RLX. Always refer to the service manual for specific torque values.

  • 1. Identify the transmission pan bolts.
  • 2. Install the bolts by hand, making sure they are snug but not over tightened.
  • 3. Set torque wrench to proper specification. Refer to the service manual.
  • 4. Tighten the pan bolts in a cross pattern to ensure even sealing and avoid warping of the pan.
  • 5. Double-check the torque on each bolt.
View full procedure
Technical Service Bulletins

Torque Specification Update for H6 Transmission Case Bolts

2018-05-15

A revision to the torque specifications for specific H6 transmission case bolts has been issued to address potential loosening issues.

2014-2018 Acura RLX

Resolution: Verify and apply the updated torque specifications found in the updated service manual. Discard any previous torque specifications.

H6 Transmission Pan Bolt Torque Sequence

2019-10-20

This bulletin outlines a specific torque sequence for the transmission pan bolts to ensure a proper seal. Failure to follow this may lead to leaks.

2014-2020 Acura RLX

Resolution: Follow the specific cross pattern sequence outlined in the service bulletin when tightening the pan bolts to the torque specifications.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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