Infiniti Vehicle Models FX35 2009-2013 Torque Specifications
Infiniti Vehicle Models FX35 2009-2013

Infiniti Vehicle Models FX35 2009-2013 Torque Specifications

Complete Infiniti Vehicle Models FX35 2009-2013 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

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

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
2

Cylinder Head to Engine Block Studs

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M20 x 1.5
Torque Specification
138 ft-lbs (187 N·m)

Valvetrain and Timing System

1

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
20.5 ft-lbs (28 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)

Intake and Exhaust System

1

Intake Manifold Bolts

M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)

Fuel System

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
16.5 ft-lbs (22 N·m)
2

Fuel Injector Bolts

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
14.5 ft-lbs (20 N·m)
2

Ignition Coil Bolt

M10 x 1.5
Torque Specification
9 ft-lbs (12 N·m)

Cooling System

1

Water Pump Bolts

M12 x 1.5
Torque Specification
9 ft-lbs (12 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
9 ft-lbs (12 N·m)

Engine Mounts and Transmission

1

Engine Block to Transmission Mounting Bolts

M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Engine Block to Engine Mounting Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

3.5l V6 Engine

Torque specifications for 3.5L-V6 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
2

Cylinder Head to Engine Block Studs

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M20 x 1.5
Torque Specification
138 ft-lbs (187 N·m)

Valvetrain and Timing System

1

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
20.5 ft-lbs (28 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)

Intake and Exhaust System

1

Intake Manifold Bolts

M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)

Fuel System

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
16.5 ft-lbs (22 N·m)
2

Fuel Injector Bolts

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
14.5 ft-lbs (20 N·m)
2

Ignition Coil Bolt

M10 x 1.5
Torque Specification
9 ft-lbs (12 N·m)

Cooling System

1

Water Pump Bolts

M12 x 1.5
Torque Specification
9 ft-lbs (12 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
9 ft-lbs (12 N·m)

Engine Mounts and Transmission

1

Engine Block to Transmission Mounting Bolts

M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Engine Block to Engine Mounting Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

7r01 Transmission

Torque specifications for 7r01 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Tighten in a star pattern to ensure even pressure.

Transmission Oil System

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
84 in-lbs (10 N·m)
Important Notes
Tighten in a star pattern to ensure even pressure.
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a clockwise direction to prevent leaks.

Transmission Case and Converter

1

Transmission Case Bolts (Upper and Lower)

M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's documentation for confirmation.
2

Torque Converter Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's documentation for confirmation.

Transmission Cooler System

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's documentation for confirmation.

Body

Torque specifications for Body

Doors

1

Door Hinge Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of doors before torquing. Estimated value based on typical door hinge bolts.
2

Mirror Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on typical mirror mounting bolts.

Seats

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Critical for passenger safety. Estimated value based on typical seat mounting bolts.

Bumpers

1

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment of bumpers before torquing. Estimated value based on typical bumper bolts.

Hood And Trunk

1

Hood Hinge Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment of the hood before torquing. Estimated value based on typical hood hinge bolts.
2

Trunk/Liftgate Hinge Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment of the trunk or liftgate before torquing. Estimated value based on typical trunk hinge bolts.

Exterior Panels

1

Fender Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on typical fender bolts.
2

Spoiler Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on typical spoiler bolts.

Roof Rack

1

Roof Rack Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of the roof rack before torquing. Estimated value based on typical roof rack bolts.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Torque value is an average of the specified range (25-30 ft-lbs).
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
68 ft-lbs (92 N·m)
Important Notes
Torque value is an average of the specified range (64-72 ft-lbs).
3

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Torque value is an average of the specified range (16-22 ft-lbs).

Brake Rotor System

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Torque value is an average of the specified range (72-87 ft-lbs).

Brake Hydraulic System

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque value is an average of the specified range (14-19 ft-lbs).
2

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque value is an average of the specified range (14-19 ft-lbs).
3

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Torque value is an average of the specified range (7-9 ft-lbs).

Wheel And Rotor System

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Torque value is an average of the specified range (80-90 ft-lbs). Always tighten in a star pattern.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Interface

1

Engine Block to Transmission Bellhousing Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value based on general industry standards.
2

Transmission Crossmember Bolts

M12 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission and Drivetrain

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
2

Transmission Oil Pan Bolts

M8 x 1.0
Torque Specification
84 in-lbs (10 N·m)
3

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
4

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)

Differential and Axle

1

Differential Cover Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on general industry standards.
2

Axle Shaft to Hub Bolts

M14 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Estimated value based on general industry standards.
3

CV Joint/Axle Nut

M20 x 1.5
Torque Specification
199 ft-lbs (270 N·m)

Drain and Fill Plugs

1

Differential Drain/Fill Plug

M12 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
2

Transfer Case Drain/Fill Plug

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)

Flywheel and Crankshaft

1

Flywheel Bolts

M14 x 1.5
Torque Specification
62 ft-lbs (84 N·m)

Electrical

Torque specifications for Electrical

Alternator And Starter Motor

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
16.5 ft-lbs (22.5 N·m)
Important Notes
Estimated average value between 14-19 ft-lbs (19-26 nm)
2

Starter Motor Mounting Bolts

M12 x 1.75
Torque Specification
35.5 ft-lbs (48 N·m)
Important Notes
Estimated average value between 32-39 ft-lbs (43-53 nm)

Battery And Terminals

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
62 in-lbs (7 N·m)
Important Notes
Estimated average value between 53-71 in-lbs (6-8 nm)

Ignition Coil And Fuel Pump

1

Ignition Coil Mounting Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated average value between 10-12 ft-lbs (14-16 nm)
2

Fuel Pump Electrical Connector Bolts

M6 x 1
Torque Specification
9 ft-lbs (12.5 N·m)
Important Notes
Estimated average value between 8-10 ft-lbs (11-14 nm)

A C Compressor

1

A/C Compressor Electrical Connector Bolts

M6 x 1
Torque Specification
9 ft-lbs (12.5 N·m)
Important Notes
Estimated average value between 8-10 ft-lbs (11-14 nm)

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensors

1

Oxygen Sensor Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on industry standards for oxygen sensor bolts.
2

Heated Oxygen Sensor (HO2S) Bolts

M10 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on industry standards for HO2S bolts.

Exhaust Gas Recirculation (EGR) Valve

1

EGR Valve Bolts

M14 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque value range: 14-19 ft-lbs (19-26 nm).

Exhaust Gas Temperature (EGT) Sensor

1

EGT Sensor Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value based on industry standards for EGT sensor bolts.

Fuel Injectors

1

Fuel Injector Bolts

M10 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Torque value range: 8-10 ft-lbs (11-14 nm).

Exhaust

Torque specifications for Exhaust

Exhaust Manifold and Headers

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Estimated average value from 33-40 ft-lbs range.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Estimated average value from 33-40 ft-lbs range.

Exhaust Pipe and Components

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Estimated average value from 33-40 ft-lbs range.
2

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Estimated average value from 33-40 ft-lbs range.
3

Muffler to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Estimated average value from 22-29 ft-lbs range.

Exhaust System Accessories

1

Oxygen Sensor Bolts

M8 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs range.
2

Exhaust System Mounting Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (40.5 N·m)
Important Notes
Estimated average value from 25-35 ft-lbs range.
3

Heat Shield Bolts

M6 x 1
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated average value from 10-15 ft-lbs range.
4

Exhaust System Clamp Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.5 N·m)
Important Notes
Estimated average value from 15-20 ft-lbs range.

Fuel

Torque specifications for Fuel

Fuel Rail and Injector System

1

Fuel Rail Bolts

M12 x 1.5
Torque Specification
16.5 ft-lbs (22.5 N·m)
Important Notes
Estimated average torque value. Proper torque is crucial to prevent fuel leaks and maintain engine performance.
2

Fuel Injector Bolts

M10 x 1.25
Torque Specification
9 ft-lbs (12.5 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.
3

Fuel Injector Rail Bolts

M12 x 1.5
Torque Specification
16.5 ft-lbs (22.5 N·m)
Important Notes
Estimated average torque value. Proper torque is crucial to prevent fuel leaks and maintain engine performance.

Fuel Pump and Filter System

1

Fuel Pump Mounting Bolts

M14 x 1.75
Torque Specification
21.5 ft-lbs (29.5 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.
2

Fuel Filter Bolt/Nut

M16 x 2.0
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.

Fuel Tank and Filler System

1

Fuel Tank Strap Bolts

M18 x 2.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Proper torque is crucial to prevent fuel leaks and maintain vehicle safety.
2

Fuel Filler Neck Bolts

M18 x 2.5
Torque Specification
36.5 ft-lbs (49.5 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.

Fuel Pressure Regulator and Line System

1

Fuel Pressure Regulator Mounting Bolts

M10 x 1.25
Torque Specification
12.5 ft-lbs (17.5 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque is necessary to prevent fuel leaks and maintain engine performance.
2

Fuel Line Fittings

M10 x 1.25
Torque Specification
12.5 ft-lbs (17.5 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque is necessary to prevent fuel leaks and maintain engine performance.

Hvac

Torque specifications for Hvac

Compressor Subsystem

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
21.5 ft-lbs (29 N-m)
Important Notes
Torque value is an average estimate based on typical compressor mounting bolts. Always follow the manufacturer's recommended sequence.

Refrigerant Lines Subsystem

1

A/C Line Fittings

M12 x 1.5
Torque Specification
21.5 ft-lbs (29 N-m)
Important Notes
Torque value is an average estimate based on typical A/C line fittings. Ensure fittings are clean and free of debris before tightening.

Evaporator Subsystem

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.5 N-m)
Important Notes
Torque value is an average estimate based on typical housing bolts. Ensure the housing is properly sealed to prevent refrigerant leaks.

Blower Motor Subsystem

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.5 N-m)
Important Notes
Torque value is an average estimate based on typical blower motor bolts. Ensure the motor is securely mounted to prevent vibrations.

Heater Core Subsystem

1

Heater Core Inlet/Outlet Fittings

M10 x 1.5
Torque Specification
16.5 ft-lbs (22.5 N-m)
Important Notes
Torque value is an average estimate based on typical heater core fittings. Ensure fittings are clean and free of debris before tightening.

Hvac Case Subsystem

1

HVAC Case Assembly Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.5 N-m)
Important Notes
Torque value is an average estimate based on typical case assembly bolts. Ensure the case is securely sealed to prevent air leaks.

Suspension

Torque specifications for Suspension

Strut And Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
38 ft-lbs (52 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

Control Arm

1

Control Arm Bolts

M16 x 1.5
Torque Specification
107 ft-lbs (145 N·m)

Ball Joint

1

Ball Joint Nut

M18 x 1.5
Torque Specification
102 ft-lbs (139 N·m)

Tie Rod End

1

Tie Rod End Nut

M12 x 1.5
Torque Specification
51 ft-lbs (69 N·m)

Sway Bar Link

1

Sway Bar Link Nut

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)

Steering Gear

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
76 ft-lbs (103 N·m)

Upper Control Arm Bushing

1

Upper Control Arm Bushing Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (109 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

Lower Control Arm Bushing

1

Lower Control Arm Bushing Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (109 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

Stabilizer Bar Mounting

1

Stabilizer Bar Mounting Bolts

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

Toe Arm

1

Toe Arm Bolts

M12 x 1.5
Torque Specification
58 ft-lbs (79 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes.

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 proper torque specification for the engine head bolts on a 2010 Infiniti fx35?

Refer to the Infiniti fx35 Service Manual for specific torque specifications. Typically, engine head bolts require a torque of approximately 80-120 ft-lbs in a three-step tightening sequence.

Q2

What type of torque wrench IS recommended for tightening critical bolts on the vehicle?

Use a properly calibrated, high-quality torque wrench that meets or exceeds industry standards. Beam-type or digital torque wrenches are suitable for precise torque application.

Q3

When should the torque on wheel lug nuts be checked?

Always check the torque on wheel lug nuts after tire rotation or replacement, and at regular intervals as specified in the Infiniti fx35 maintenance schedule.

Q4

What IS the recommended procedure for tightening suspension bolts?

Tighten suspension bolts in a specific sequence and to the torque specifications provided in the Infiniti fx35 Service Manual. Use a torque wrench to ensure proper tightness and prevent over-tightening.

Q5

What are the consequences of over-tightening bolts?

Over-tightening bolts can lead to stripped threads, damaged components, and potential safety hazards. Always adhere to the recommended torque specifications and use proper tools.

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

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the fx35.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures

Bolt Torque Specifications: Engine to Body

Procedure for tightening bolts connecting the engine to the vehicle body on the 2009-2013 Infiniti fx35, ensuring proper alignment and preventing leaks or damage.

  • Locate the bolts connecting the engine to the body.
  • Use a digital torque wrench to tighten the bolts to 60 Nm (44 ft-lb).
  • Double-check the tightness of the bolts.
  • Safety precaution: Ensure the engine IS off and cooled down before performing this procedure.
View full procedure

Bolt Torque Specifications: Suspension

Comprehensive guide for tightening bolts related to the suspension system of the 2009-2013 Infiniti fx35, ensuring optimal handling and performance.

  • Identify the specific bolts involved in the suspension system.
  • Consult the vehicle service manual or a reliable online source for the torque specifications.
  • Use a digital torque wrench to tighten the bolts to the specified torque values.
  • Double-check the tightness of the bolts.
  • Safety precaution: Use appropriate safety gear and lift the vehicle securely before performing this procedure.
View full procedure

Bolt Torque Specifications: Brake System

Critical procedure for tightening bolts within the brake system of the 2009-2013 Infiniti fx35, ensuring proper braking performance and safety.

  • Locate the bolts associated with the brake calipers, rotors, and other brake components.
  • Refer to the service manual or online resources for the correct torque specifications.
  • Use a torque wrench to tighten the bolts to the specified torque values.
  • Re-check the tightness of all bolts.
  • Safety precaution: Never attempt to work on the brake system without proper knowledge and safety precautions.
View full procedure
Technical Service Bulletins

Technical Service Bulletin: Revised Torque Specifications for Crankshaft Pulley Bolt

2012-05-15

Updated information released by Infiniti regarding revised torque specifications for the crankshaft pulley bolt on the 2009-2013 fx35.

2009-2013 fx35

Resolution: As per the bulletin, the crankshaft pulley bolt torque specification has been revised from 105 Nm (77 ft-lb) to 123 Nm (91 ft-lb). Dealers and technicians are advised to use the updated specification during engine repairs or servicing.

Technical Service Bulletin: Loose Exhaust Manifold Bolts

2010-09-28

A bulletin addressing loose exhaust manifold bolts encountered on some fx35 models.

2009-2011 fx35

Resolution: The bulletin instructs technicians to inspect the exhaust manifold bolts for proper torque (60 Nm/44 ft-lb) and replace any loose or damaged bolts. Additionally, a thread sealant IS recommended to prevent future loosening.

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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.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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