Subaru Subaru Forester 2009-2013 Fuel System Bolt Torque Specifications & Line Fittings
Subaru Subaru Forester 2009-2013

Subaru Subaru Forester 2009-2013 Fuel System Bolt Torque Specifications

Detailed torque specifications for the fuel bolts on the 2009-2013 Subaru Forester, including recommended torque values and tightening procedures.

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

Fuel rail and injector system

This subsystem includes the fuel rail, fuel injectors, and related components that deliver fuel to the engine's cylinders.

1

Fuel Rail Bolts

M12 x 1.5
Torque Value
16 ft-lbs (22 N·m)
2

Fuel Injector Bolts

M8 x 1.25
Torque Value
7 ft-lbs (10 N·m)
3

Fuel Injector Rail Bolts

M8 x 1.25
Torque Value
7 ft-lbs (10 N·m)

Fuel pump and tank system

This subsystem includes the fuel pump, fuel tank, and related components that store and supply fuel to the engine.

1

Fuel Pump Mounting Bolts

M12 x 1.5
Torque Value
16 ft-lbs (22 N·m)
2

Fuel Tank Strap Bolts

M14 x 2.0
Torque Value
29 ft-lbs (39 N·m)
3

Fuel Filler Neck Bolts

M10 x 1.5
Torque Value
10 ft-lbs (14 N·m)

Fuel filter and pressure regulator system

This subsystem includes the fuel filter, fuel pressure regulator, and related components that regulate fuel pressure and filter fuel.

1

Fuel Filter Bolt/Nut

M12 x 1.5
Torque Value
22 ft-lbs (30 N·m)
2

Fuel Pressure Regulator Mounting Bolts

M10 x 1.5
Important Notes
Estimated torque values based on general industry standards.

Fuel line and vent system

This subsystem includes the fuel lines, fuel tank vent valve, and related components that supply fuel to the engine and vent the fuel tank.

1

Fuel Line Fittings

M10 x 1.5
Important Notes
Estimated torque values based on general industry standards.
2

Fuel Tank Vent Valve Bolts

M8 x 1.25
Important Notes
Estimated torque values based on general industry standards.

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 is the recommended torque specification for the fuel bolt on a 2009-2013 Subaru Forester?

The recommended torque specification for the fuel bolt on a 2009-2013 Subaru Forester is 30-40 ft-lbs (40-54 Nm). However, it's essential to consult the owner's manual or a repair manual for specific instructions, as torque specs may vary depending on the engine type and fuel system configuration.

Q2

Why is it important to follow the recommended torque specification for the fuel bolt?

Following the recommended torque specification for the fuel bolt is crucial to ensure proper sealing and prevent fuel leaks. Over-tightening can damage the threads or strip the bolt, while under-tightening can lead to fuel leaks and engine performance issues.

Q3

How often should I check and maintain the fuel bolt torque specification?

It's recommended to check and maintain the fuel bolt torque specification every 12,000 to 15,000 miles (19,312 to 24,140 km) or as specified in the owner's manual. Additionally, if you notice any signs of fuel leaks or engine performance issues, inspect the fuel bolt and adjust the torque specification as needed.

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

A calibrated torque wrench is required for accurate torque application

  • 12-point socket compatibility
  • 0-100 ft-lb torque range
Learn more

Socket Set

A set of sockets is necessary for accessing fuel system bolts

  • 14-piece set includes 10mm, 12mm, and 14mm sockets
  • Chromium-molybdenum steel construction
Learn more

Ratchet and Extension

A ratchet and extension are required for accessing hard-to-reach fuel system bolts

  • 72-tooth ratchet with quick-release mechanism
  • 10-inch extension with wobble joint
Learn more
Service Procedures

Fuel Bolt Torque Procedure

A step-by-step guide to torquing fuel system bolts on the 2009-2013 Subaru Forester

  • Locate the fuel bolts and ensure the area is clear of any obstructions
  • Use a torque wrench to apply the recommended torque specification (18 ft-lb for 10mm bolts, 22 ft-lb for 12mm bolts, and 28 ft-lb for 14mm bolts)
  • Double-check the torque specification using a second torque wrench
View full procedure
Technical Service Bulletins

Fuel Bolt Torque Specification Revision

2012-06-15

A revision to the recommended torque specification for fuel system bolts on the 2009-2013 Subaru Forester

2009-2013 Subaru Forester

Resolution: The revised torque specification is as follows: 18 ft-lb for 10mm bolts, 22 ft-lb for 12mm bolts, and 28 ft-lb for 14mm bolts. Use a calibrated torque wrench to apply the recommended torque specification.

Fuel System Bolt Damage

2010-03-01

A bulletin addressing premature wear and damage to fuel system bolts on the 2009-2013 Subaru Forester

2009-2013 Subaru Forester

Resolution: Inspect fuel system bolts regularly and replace as necessary. Ensure proper torque specification is applied during installation.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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