Subaru Subaru Forester 2009-2013 Drivetrain Bolt Torque Specifications
Detailed drivetrain bolt torque specifications for the 2009-2013 Subaru Forester, including transmission, transfer case, and differential 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
Components related to the engine, including flywheel, crankshaft, and camshaft.
1 Flywheel Bolts
M12 x 1.5
Flywheel Bolts
M12 x 1.5Torque Value
2 Crankshaft Position Sensor Bolt
M6 x 1
Crankshaft Position Sensor Bolt
M6 x 1Torque Value
Important Notes
3 Camshaft Position Sensor Bolt
M6 x 1
Camshaft Position Sensor Bolt
M6 x 1Torque Value
Important Notes
Transmission
Components related to the transmission, including mounting bolts and pan bolts.
1 Transmission Mounting Bolts
M14 x 1.5
Transmission Mounting Bolts
M14 x 1.5Torque Value
2 Transmission Pan Bolts
M10 x 1.5
Transmission Pan Bolts
M10 x 1.5Torque Value
Important Notes
Drivetrain
Components related to the drivetrain, including drive axle/half shaft bolts, CV joint/axle nut, and propeller/drive shaft bolts.
1 Drive Axle/Half Shaft Bolts
M14 x 1.5
Drive Axle/Half Shaft Bolts
M14 x 1.5Torque Value
2 CV Joint/Axle Nut
M20 x 1.5
CV Joint/Axle Nut
M20 x 1.5Torque Value
3 Propeller/Drive Shaft Bolts
M12 x 1.5
Propeller/Drive Shaft Bolts
M12 x 1.5Torque Value
Differential
Components related to the differential, including drain/fill plug and cover bolts.
1 Differential Drain/Fill Plug
M12 x 1.5
Differential Drain/Fill Plug
M12 x 1.5Torque Value
2 Differential Cover Bolts
M10 x 1.5
Differential Cover Bolts
M10 x 1.5Torque Value
Important Notes
Transfer case
Components related to the transfer case, including drain/fill plug and mounting bolts.
1 Transfer Case Drain/Fill Plug
M10 x 1.5
Transfer Case Drain/Fill Plug
M10 x 1.5Torque Value
2 Transfer Case Mounting Bolts
M14 x 1.5
Transfer Case Mounting Bolts
M14 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 What is the recommended torque specification for the drivetrain bolts on my 2009-2013 Subaru Forester?
What is the recommended torque specification for the drivetrain bolts on my 2009-2013 Subaru Forester?
The recommended torque specification for the drivetrain bolts on your 2009-2013 Subaru Forester can be found in the repair manual or on the manufacturer's website. However, as a general guideline, the torque specs for the drivetrain bolts are as follows: transmission mounts (30-40 ft-lbs), driveshaft bolts (40-50 ft-lbs), and differential cover bolts (20-30 ft-lbs). It's essential to consult the repair manual or manufacturer's website for specific torque specs, as over-torquing or under-torquing can cause damage to the drivetrain components.
Q2 How often should I check and maintain the drivetrain bolts on my Subaru Forester?
How often should I check and maintain the drivetrain bolts on my Subaru Forester?
It's recommended to check and maintain the drivetrain bolts every 12,000 to 15,000 miles or as specified in the owner's manual. Regular checks can help prevent loose bolts, which can cause vibrations, noise, and damage to the drivetrain components. Additionally, it's essential to inspect the bolts for signs of wear, corrosion, or damage and replace them as needed.
Q3 Can I use a impact wrench to tighten the drivetrain bolts on my Subaru Forester?
Can I use a impact wrench to tighten the drivetrain bolts on my Subaru Forester?
While an impact wrench can be convenient, it's not recommended to use it to tighten the drivetrain bolts on your Subaru Forester. Impact wrenches can apply too much torque, which can damage the bolts or strip the threads. Instead, use a torque wrench to ensure accurate and controlled torque application.
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
A precision torque wrench for accurate bolt tightening
- Range: 10-100 ft-lbs
- Accuracy: ±2%
Socket Set
A set of sockets for drivetrain bolt removal and installation
- Sizes: 10mm, 12mm, 14mm
- Drive type: 3/8" and 1/2"
Service Procedures
Drivetrain Bolt Torque Specification
Procedure for tightening drivetrain bolts to specified torque values
- Locate the drivetrain bolts to be tightened
- Clean the bolt threads and surrounding area
- Apply the recommended torque value using a torque wrench
- Verify the torque value using a secondary torque wrench (if available)
Front Differential Rebuild
Procedure for rebuilding the front differential
- Remove the front differential cover
- Remove the differential bearings and seals
- Inspect and replace the differential gears and bearings as needed
- Reassemble the differential in the reverse order of disassembly
Technical Service Bulletins
Drivetrain Bolt Torque Specification Update
2011-07-15Update to the drivetrain bolt torque specification for 2009-2013 Subaru Forester models
Resolution: Update the torque specification to 30 ft-lbs for the front differential bolts
Front Differential Bearing Failure
2012-03-01Bulletin regarding front differential bearing failure on 2009-2013 Subaru Forester models
Resolution: Inspect the front differential bearings for signs of wear or damage and replace as needed
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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.