Subaru Subaru Crosstrek 2013-2017 Exhaust System Bolt Torque Specifications
Detailed torque specifications for the exhaust bolts on the 2013-2017 Subaru Crosstrek, including the exhaust manifold, downpipe, and catalytic converter.
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
Exhaust Manifold Headers
Bolts securing the exhaust manifold/headers to the engine block and cylinder head.
1 Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5Torque Value
Important Notes
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M12 x 1.5
Exhaust Manifold/Headers to Cylinder Head Bolts
M12 x 1.5Torque Value
Important Notes
Exhaust Pipe
Bolts connecting the exhaust pipe to the exhaust manifold/headers and muffler.
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5Torque Value
Important Notes
2 Muffler to Exhaust Pipe Bolts
M12 x 1.5
Muffler to Exhaust Pipe Bolts
M12 x 1.5Torque Value
Catalytic Converter
Bolts securing the catalytic converter to the exhaust pipe.
1 Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5Torque Value
Oxygen Sensor
Bolts securing the oxygen sensor to the exhaust system.
1 Oxygen Sensor Bolts
M10 x 1.25
Oxygen Sensor Bolts
M10 x 1.25Torque Value
Important Notes
Exhaust System Mounting
Bolts securing the exhaust system components to the vehicle's chassis or engine block.
1 Exhaust System Mounting Bolts
M14 x 1.5
Exhaust System Mounting Bolts
M14 x 1.5Torque Value
Important Notes
Exhaust System Clamp
Bolts securing the exhaust system clamps.
1 Exhaust System Clamp Bolts
M8 x 1.25
Exhaust System Clamp Bolts
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 is the recommended torque specification for the exhaust bolts on my 2013-2017 Subaru Crosstrek?
What is the recommended torque specification for the exhaust bolts on my 2013-2017 Subaru Crosstrek?
The recommended torque specification for the exhaust bolts on your 2013-2017 Subaru Crosstrek is 30-40 ft-lbs (40-54 Nm) for the exhaust manifold bolts, and 20-30 ft-lbs (27-40 Nm) for the exhaust pipe flange bolts. It's essential to consult your owner's manual or a repair manual for specific torque values, as they may vary depending on the engine type and exhaust system configuration.
Q2 Why is it important to follow the recommended torque specification for exhaust bolts?
Why is it important to follow the recommended torque specification for exhaust bolts?
Following the recommended torque specification for exhaust bolts is crucial to ensure a leak-free exhaust system and prevent damage to the engine, exhaust components, and surrounding parts. Over-torquing can lead to stripped threads, while under-torquing can cause leaks and decreased performance.
Q3 How often should I check and maintain the exhaust system on my Subaru Crosstrek?
How often should I check and maintain the exhaust system on my Subaru Crosstrek?
It's recommended to inspect the exhaust system every 12,000 to 15,000 miles (19,312 to 24,140 km) or as specified in your owner's manual. Look for signs of leaks, damage, or wear on the exhaust components, and address any issues promptly to prevent further damage and maintain optimal performance.
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 wrench that measures and applies a specific amount of torque to the exhaust bolts.
- Digital display
- Adjustable torque settings
Socket Set
A set of sockets that fit the exhaust bolts, including a 14mm or 17mm socket.
- Chrome vanadium steel construction
- Includes 14mm and 17mm sockets
Exhaust System Jack Stands
Jack stands that support the exhaust system during removal and installation.
- Heavy-duty steel construction
- Adjustable height
Service Procedures
Exhaust Bolt Torque Specification
Procedure for applying the correct torque to the exhaust bolts on a 2013-2017 Subaru Crosstrek.
- Locate the exhaust bolts and ensure they are clean and free of debris.
- Apply a small amount of lubricant to the threads of the bolts.
- Use a torque wrench to apply the specified torque (14mm bolts: 30-40 ft-lbs, 17mm bolts: 40-50 ft-lbs).
- Check the torque specification in the repair manual or on the manufacturer's website for any updates.
Exhaust System Removal and Installation
Procedure for removing and installing the exhaust system on a 2013-2017 Subaru Crosstrek.
- Raise the vehicle and support it with jack stands.
- Remove the exhaust bolts and carefully pull the exhaust system away from the engine.
- Install the new exhaust system and hand tighten the bolts.
- Lower the vehicle and tighten the exhaust bolts to the specified torque.
Technical Service Bulletins
Exhaust Bolt Torque Specification Update
2015-02-15Update to the exhaust bolt torque specification for 2013-2017 Subaru Crosstrek models.
Resolution: Apply the updated torque specification (14mm bolts: 30-40 ft-lbs, 17mm bolts: 40-50 ft-lbs) to ensure proper installation and prevent damage to the exhaust system.
Exhaust System Leaks
2014-08-20Technical bulletin addressing exhaust system leaks on 2013-2017 Subaru Crosstrek models.
Resolution: Inspect the exhaust system for any signs of damage or wear, and replace any damaged components. Ensure the exhaust bolts are tightened to the specified torque.
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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.