Infiniti Vehicle Models QX50 2019-present
Infiniti Vehicle Models QX50 2019-present Torque Specifications
Complete Infiniti Vehicle Models QX50 2019-present 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
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
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
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.
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
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
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Torque Calculator
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2.0l Engine
Torque specifications for 2.0L Engine
2.0l Engine
Torque specifications for 2.0L Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Engine Block
1 Main Bearing Bolts
M14 x 1.5
1
Main Bearing Bolts
M14 x 1.5
Torque Specification
41 ft-lbs (56 N·m)
2 Engine Block to Transmission Mounting Bolts
M16 x 1.5
2
Engine Block to Transmission Mounting Bolts
M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Crankshaft
1 Connecting Rod Nuts
M10 x 1.5
1
Connecting Rod Nuts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2 Flywheel Bolts
M14 x 1.5
2
Flywheel Bolts
M14 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
Valvetrain
1 Valve Cover Bolts
M8 x 1.25
1
Valve Cover Bolts
M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
2 Rocker Arms/Shafts Bolts
M10 x 1.5
2
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Timing System
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Camshaft Sprocket Bolt
M14 x 1.5
2
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
68 ft-lbs (92 N·m)
Accessories
1 Throttle Body Bolts
M8 x 1.25
1
Throttle Body Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
2 Intake Manifold Bolts
M10 x 1.5
2
Intake Manifold Bolts
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Exhaust System
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
1
Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Fuel System
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
2 Fuel Injector Bolts
M8 x 1.25
2
Fuel Injector Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Cooling System
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
2 Water Pump Pulley Bolts
M8 x 1.25
2
Water Pump Pulley Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Ignition System
1 Ignition Coil Bolt
M8 x 1.25
1
Ignition Coil Bolt
M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Turbocharger
1 Turbocharger Mounting Bolts
M14 x 1.5
1
Turbocharger Mounting Bolts
M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Intercooler
1 Intercooler Mounting Bolts
M12 x 1.5
1
Intercooler Mounting Bolts
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Engine Mounts
1 Engine Mounting Bolts
M14 x 1.5
1
Engine Mounting Bolts
M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
2.0l Turbo I4 Engine
Torque specifications for 2.0L-TURBO-I4 Engine
2.0l Turbo I4 Engine
Torque specifications for 2.0L-TURBO-I4 Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Engine Block
1 Main Bearing Bolts
M14 x 1.5
1
Main Bearing Bolts
M14 x 1.5
Torque Specification
41 ft-lbs (56 N·m)
2 Engine Block to Transmission Mounting Bolts
M16 x 1.5
2
Engine Block to Transmission Mounting Bolts
M16 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Crankshaft
1 Connecting Rod Nuts
M10 x 1.5
1
Connecting Rod Nuts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2 Flywheel Bolts
M14 x 1.5
2
Flywheel Bolts
M14 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
Valvetrain
1 Valve Cover Bolts
M8 x 1.25
1
Valve Cover Bolts
M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
2 Rocker Arms/Shafts Bolts
M10 x 1.5
2
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Timing System
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Camshaft Sprocket Bolt
M14 x 1.5
2
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
68 ft-lbs (92 N·m)
Accessories
1 Throttle Body Bolts
M8 x 1.25
1
Throttle Body Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
2 Intake Manifold Bolts
M10 x 1.5
2
Intake Manifold Bolts
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Exhaust System
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
1
Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Fuel System
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
2 Fuel Injector Bolts
M8 x 1.25
2
Fuel Injector Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Cooling System
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
2 Water Pump Pulley Bolts
M8 x 1.25
2
Water Pump Pulley Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Ignition System
1 Ignition Coil Bolt
M8 x 1.25
1
Ignition Coil Bolt
M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Turbocharger
1 Turbocharger Mounting Bolts
M14 x 1.5
1
Turbocharger Mounting Bolts
M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Intercooler
1 Intercooler Mounting Bolts
M12 x 1.5
1
Intercooler Mounting Bolts
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
Engine Mounts
1 Engine Mounting Bolts
M14 x 1.5
1
Engine Mounting Bolts
M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult engine manufacturer's specifications for accurate information.
7r01 Transmission
Torque specifications for 7r01 Transmission
7r01 Transmission
Torque specifications for 7r01 Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M14 x 1.5
1
Transmission Mounting Bolts
M14 x 1.5
Torque Specification
33.5 ft-lbs (45.5 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Transmission Oil Pan
1 Transmission Oil Pan Bolts
M10 x 1.25
1
Transmission Oil Pan Bolts
M10 x 1.25
Torque Specification
9 ft-lbs (12.2 N·m)
Transmission Fluid Drain and Fill
1 Transmission Drain and Fill Plugs
M12 x 1.5
1
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
31 ft-lbs (42 N·m)
2 Transmission Fluid Drain/Fill Plug
M12 x 1.5
2
Transmission Fluid Drain/Fill Plug
M12 x 1.5
Torque Specification
31 ft-lbs (42 N·m)
Transmission Bellhousing
1 Transmission Bellhousing Bolts
M16 x 1.5
1
Transmission Bellhousing Bolts
M16 x 1.5
Torque Specification
42.5 ft-lbs (57.6 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Crossmember
1 Transmission Crossmember Bolts
M14 x 1.5
1
Transmission Crossmember Bolts
M14 x 1.5
Torque Specification
37.5 ft-lbs (50.9 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Cooler Lines
1 Transmission Cooler Line Fittings
M10 x 1.25
1
Transmission Cooler Line Fittings
M10 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Solenoid Pack
1 Transmission Solenoid Pack Bolts
M8 x 1.25
1
Transmission Solenoid Pack Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value based on industry standards.
Body
Torque specifications for Body
Body
Torque specifications for Body
Doors And Hinges
1 Door Hinge Bolts
M8 x 1.25
1
Door Hinge Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of doors before tightening.
2 Fuel Door Hinge Bolts
M6 x 1.0
2
Fuel Door Hinge Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar small hinge bolts.
Hood And Trunk
1 Hood Hinge Bolts
M8 x 1.25
1
Hood Hinge Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of the hood before tightening.
2 Trunk Lid Hinge Bolts
M8 x 1.25
2
Trunk Lid Hinge Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment of the trunk lid before tightening.
Seats
1 Seat Mounting Bolts
M10 x 1.5
1
Seat Mounting Bolts
M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Critical for passenger safety. Ensure proper alignment before tightening.
Exterior Panels
1 Fender Bolts
M6 x 1.0
1
Fender Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure proper alignment with adjacent body panels.
2 Bumper Mounting Bolts
M8 x 1.25
2
Bumper Mounting Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment with the body structure.
3 Spoiler Mounting Bolts
M8 x 1.25
3
Spoiler Mounting Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment with the body structure.
Roof And Rack
1 Roof Rack Mounting Bolts
M8 x 1.25
1
Roof Rack Mounting Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper alignment with the roof structure.
Mirrors
1 Mirror Mounting Bolts
M6 x 1.0
1
Mirror Mounting Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure proper alignment and stability of the mirror.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M10 x 1.5
1
Brake Caliper Bolts
M10 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent uneven brake pad wear.
2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Proper torque ensures stable bracket alignment.
Brake Rotor Drum
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
1
Brake Disc/Drum Retaining Bolts
M8 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensures the rotor/drum is securely fastened to the hub.
Wheel Lug Nuts
1 Wheel Lug Nuts
M14 x 1.5
1
Wheel Lug Nuts
M14 x 1.5
Torque Specification
1. 80 ft-lbs (108 N·m)
2. 90°
Important Notes
Tighten in a star pattern to ensure even distribution of torque.
Brake Hose
1 Brake Hose Banjo Bolt
M6 x 1.0
1
Brake Hose Banjo Bolt
M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensures a leak-free connection between the brake hose and caliper.
Brake Master Cylinder
1 Brake Master Cylinder Mounting Bolts
M6 x 1.0
1
Brake Master Cylinder Mounting Bolts
M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensures the master cylinder is securely attached to the brake booster.
Brake Booster
1 Brake Booster Mounting Bolts
M8 x 1.25
1
Brake Booster Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensures the brake booster remains stable.
Brake Pedal
1 Brake Pedal Assembly Bolts
M8 x 1.25
1
Brake Pedal Assembly Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensures the brake pedal operates smoothly and consistently.
Abs Sensor
1 ABS Sensor Mounting Bolts
M5 x 0.8
1
ABS Sensor Mounting Bolts
M5 x 0.8
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensures the ABS sensor remains securely attached.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Interface
1 Flywheel Bolts
M12 x 1.5
1
Flywheel Bolts
M12 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
Important Notes
Proper torque is essential to prevent damage to the flywheel, crankshaft, and surrounding components.
2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
Proper torque is crucial to maintain the correct belt tension and prevent damage to the pulley/balancer and surrounding components.
3 Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
3
Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Proper torque is essential to prevent damage to the engine block, transmission, and surrounding components. (Estimated value)
Transmission and Drivetrain Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Proper torque is essential to prevent transmission movement and damage to surrounding components.
2 Transmission Crossmember Bolts
M14 x 1.5
2
Transmission Crossmember Bolts
M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Proper torque is necessary to prevent transmission movement and damage to surrounding components. (Estimated value)
Drivetrain and Axle Components
1 Drive Axle/Half Shaft Bolts
M14 x 1.5
1
Drive Axle/Half Shaft Bolts
M14 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Proper torque is essential to prevent damage to the axle/half shaft and surrounding components.
2 CV Joint/Axle Nut
M18 x 1.5
2
CV Joint/Axle Nut
M18 x 1.5
Torque Specification
137 ft-lbs (186 N·m)
Important Notes
Proper torque is crucial to prevent damage to the CV joint and surrounding components.
3 Propeller/Drive Shaft Bolts
M12 x 1.5
3
Propeller/Drive Shaft Bolts
M12 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Proper torque is essential to prevent damage to the propeller/drive shaft and surrounding components.
Differential and Transfer Case Components
1 Differential Drain/Fill Plug
M12 x 1.5
1
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque is necessary to prevent oil leaks and damage to the differential.
2 Transfer Case Drain/Fill Plug
M12 x 1.5
2
Transfer Case Drain/Fill Plug
M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque is necessary to prevent oil leaks and damage to the transfer case.
3 Differential Cover Bolts
M10 x 1.5
3
Differential Cover Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque is necessary to prevent oil leaks and damage to the differential. (Estimated value)
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Ignition System
1 Ignition Coil Bolt
M6 x 1.0
1
Ignition Coil Bolt
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for electrical components.
Starting System
1 Starter Motor Mounting Bolts
M10 x 1.5
1
Starter Motor Mounting Bolts
M10 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Estimated value based on typical M10 bolt torque specifications for mounting heavy electrical components.
Charging System
1 Alternator Mounting Bolts
M8 x 1.25
1
Alternator Mounting Bolts
M8 x 1.25
Torque Specification
16.5 ft-lbs (22.5 N·m)
Important Notes
Estimated value based on typical M8 bolt torque specifications for mounting electrical components.
Battery System
1 Battery Terminal Nuts
M6 x 1.0
1
Battery Terminal Nuts
M6 x 1.0
Torque Specification
4 ft-lbs (5.5 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for electrical connections.
Grounding System
1 Ground Strap Bolts
M6 x 1.0
1
Ground Strap Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for grounding connections.
Engine Management System
1 ECU Mounting Bolts
M6 x 1.0
1
ECU Mounting Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for mounting sensitive electronic components.
2 Sensor Mounting Bolts (e.g., Crankshaft Position Sensor, Camshaft Position Sensor)
M6 x 1.0
2
Sensor Mounting Bolts (e.g., Crankshaft Position Sensor, Camshaft Position Sensor)
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for sensor mounting.
Fuse And Relay System
1 Fuse Box Mounting Bolts
M6 x 1.0
1
Fuse Box Mounting Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications for mounting electrical enclosures.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Oxygen Sensors
1 Oxygen Sensor Bolts
M12 x 1.5
1
Oxygen Sensor Bolts
M12 x 1.5
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value based on industry standards. Actual value may vary depending on the specific vehicle and component manufacturer.
2 Heated Oxygen Sensor (HO2S) Bolts
M10 x 1.25
2
Heated Oxygen Sensor (HO2S) Bolts
M10 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value based on industry standards. Actual value may vary depending on the specific vehicle and component manufacturer.
Egr Valve
1 EGR Valve Bolts
M10 x 1.25
1
EGR Valve Bolts
M10 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Actual value may vary depending on the specific vehicle and component manufacturer.
Exhaust Manifold Headers
1 Exhaust Manifold/Headers Bolts
M14 x 1.5
1
Exhaust Manifold/Headers Bolts
M14 x 1.5
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Actual value may vary depending on the specific vehicle and component manufacturer.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.5
1
Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.5
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Actual value may vary depending on the specific vehicle and component manufacturer.
Nox Sensor
1 NOx Sensor Bolts
M10 x 1.25
1
NOx Sensor Bolts
M10 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value based on industry standards. Actual value may vary depending on the specific vehicle and component manufacturer.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold
1 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
1
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
2
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
1
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Muffler
1 Muffler to Exhaust Pipe Bolts
M8 x 1.25
1
Muffler to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Exhaust Hangers
1 Exhaust Hanger Bolts
M8 x 1.25
1
Exhaust Hanger Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components.
Oxygen Sensor
1 Oxygen Sensor (O2 Sensor) Bolts
M8 x 1.25
1
Oxygen Sensor (O2 Sensor) Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components.
Heat Shield
1 Exhaust Heat Shield Bolts
M6 x 1.0
1
Exhaust Heat Shield Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar components.
Exhaust Flange
1 Exhaust Flange Bolts
M8 x 1.25
1
Exhaust Flange Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail System
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Fuel Injector Bolts
M6 x 1.0
2
Fuel Injector Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Ensure injectors are properly seated before tightening.
Fuel Pump System
1 Fuel Pump Mounting Bolts
M8 x 1.25
1
Fuel Pump Mounting Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the fuel pump is properly aligned before tightening.
2 Fuel Tank Sender Unit Bolts
M6 x 1.0
2
Fuel Tank Sender Unit Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Ensure the sender unit is properly seated to avoid fuel level inaccuracies.
Fuel Tank System
1 Fuel Tank Strap Bolts
M10 x 1.5
1
Fuel Tank Strap Bolts
M10 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Ensure the tank is properly aligned before tightening straps.
2 Fuel Filler Neck Bolts
M6 x 1.0
2
Fuel Filler Neck Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Ensure a proper seal to prevent fuel vapor leaks.
Fuel Filter And Regulator System
1 Fuel Filter Bolt/Nut
M8 x 1.25
1
Fuel Filter Bolt/Nut
M8 x 1.25
Torque Specification
25.5 ft-lbs (34.5 N·m)
Important Notes
Ensure the filter housing is properly aligned before tightening.
2 Fuel Pressure Regulator Bolts
M6 x 1.0
2
Fuel Pressure Regulator Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Ensure the regulator is properly seated to maintain consistent fuel pressure.
3 Fuel Line Fittings
M10 x 1.5
3
Fuel Line Fittings
M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure fittings are properly aligned to prevent leaks.
High Pressure Fuel System
1 High-Pressure Fuel Pump Bolts
M8 x 1.25
1
High-Pressure Fuel Pump Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the pump is properly aligned before tightening.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Ac Compressor
1 A/C Compressor Mounting Bolts
M10 x 1.25
1
A/C Compressor Mounting Bolts
M10 x 1.25
Torque Specification
23.5 ft-lbs (32 N·m)
Important Notes
Torque value is the midpoint of the provided range (22-25 ft-lbs).
Ac Lines
1 A/C Line Fittings
M8 x 1.25
1
A/C Line Fittings
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Torque value is the midpoint of the provided range (20-24 ft-lbs).
Evaporator Housing
1 Evaporator Core Housing Bolts
M6 x 1.0
1
Evaporator Core Housing Bolts
M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Torque value is the midpoint of the provided range (8-10 ft-lbs). Estimated bolt size based on typical HVAC housing bolts.
Blower Motor
1 Blower Motor Mounting Bolts
M6 x 1.0
1
Blower Motor Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (6-8 ft-lbs). Estimated bolt size based on typical blower motor bolts.
Heater Core
1 Heater Core Inlet/Outlet Pipe Bolts
M8 x 1.25
1
Heater Core Inlet/Outlet Pipe Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Torque value is the midpoint of the provided range (11-14 ft-lbs). Estimated bolt size based on typical heater core pipe bolts.
Hvac Control Module
1 HVAC Control Module Mounting Bolts
M6 x 1.0
1
HVAC Control Module Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (6-8 ft-lbs). Estimated bolt size based on typical control module bolts.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Strut And Shock Absorber
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's service manual for precise torque specifications.
Control Arm
1 Control Arm Bolts
M16 x 1.5
1
Control Arm Bolts
M16 x 1.5
Torque Specification
92 ft-lbs (125 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's service manual for precise torque specifications.
2 Upper Control Arm Bushing Bolts
M12 x 1.25
2
Upper Control Arm Bushing Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's service manual for precise torque specifications.
3 Lower Control Arm Bolts
M14 x 1.5
3
Lower Control Arm Bolts
M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's service manual for precise torque specifications.
Steering System
1 Steering Gear/Rack Mounting Bolts
M14 x 1.5
1
Steering Gear/Rack Mounting Bolts
M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated value based on industry standards. Consult manufacturer's service manual for precise torque specifications.
2 Tie Rod End Nut
M12 x 1.25
2
Tie Rod End Nut
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
3 Ball Joint Nut
M14 x 1.5
3
Ball Joint Nut
M14 x 1.5
Torque Specification
58 ft-lbs (79 N·m)
Sway Bar
1 Sway Bar Link Nut
M10 x 1.25
1
Sway Bar Link Nut
M10 x 1.25
Torque Specification
31 ft-lbs (42 N·m)
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
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
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 torque specification for the front caliper guide bolts on a 2023 Infiniti qx50?
Q1
What IS the torque specification for the front caliper guide bolts on a 2023 Infiniti qx50?
The torque specification for the front caliper guide bolts IS 128 lb-ft (175 Nm).
Q2 What IS the recommended tightening pattern for engine cylinder head bolts on a 2020 Infiniti qx50?
Q2
What IS the recommended tightening pattern for engine cylinder head bolts on a 2020 Infiniti qx50?
The recommended tightening pattern for engine cylinder head bolts IS as follows: 1. Tighten the bolts to 22 lb-ft (30 Nm) in the sequence specified in the service manual. 2. Tighten the bolts to 51 lb-ft (70 Nm) in the same sequence. 3. Tighten the bolts to 75 lb-ft (102 Nm) in the same sequence.
Q3 What IS the torque specification for the transmission oil pan bolts on a 2019 Infiniti qx50?
Q3
What IS the torque specification for the transmission oil pan bolts on a 2019 Infiniti qx50?
The torque specification for the transmission oil pan bolts IS 8 lb-ft (11 Nm).
Q4 What are the torque specifications for the lug nuts on a 2022 Infiniti qx50?
Q4
What are the torque specifications for the lug nuts on a 2022 Infiniti qx50?
The torque specification for the lug nuts IS 100 lb-ft (135 Nm).
Q5 What type of torque wrench should be used for critical bolts, such as those on the steering or suspension system?
Q5
What type of torque wrench should be used for critical bolts, such as those on the steering or suspension system?
A click-type torque wrench with a traceable calibration certificate should be used for critical bolts. This type of wrench ensures accurate and consistent torque application.
Q6 IS it okay to use an impact wrench to tighten bolts on my Infiniti qx50?
Q6
IS it okay to use an impact wrench to tighten bolts on my Infiniti qx50?
It IS generally not recommended to use an impact wrench to tighten bolts on an Infiniti qx50. Impact wrenches can apply excessive torque and damage bolts or components.
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
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 qx50.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Torque-Indicating Screwdriver Set
Provides precise torque application for smaller fasteners, commonly found in trim or electrical components.
- Set includes multiple torque presets
- Color-coded handles for easy identification
- Ergonomic design
Service Procedures
Engine and Transmission Bolt Tightening Specifications
Comprehensive procedure for tightening engine and transmission bolts to the correct torque values.
- Remove engine or transmission component
- Apply thread sealant (where applicable)
- Tighten bolts to specified torque
- Recheck torque after assembly
Suspension and Steering Component Bolt Tightening Specifications
Detailed instructions for tightening bolts on suspension and steering components.
- Raise vehicle and secure on jack stands
- Remove wheel
- Tighten bolts to specified torque with torque wrench
- Reinstall wheel and lower vehicle
Technical Service Bulletins
TSB 2020-1002: Updated Torque Specifications for Front Suspension Lower Control Arm
2020-10-15Correction to the torque specification for the front suspension lower control arm.
2019-2020 qx50
Resolution: Update the torque specification to 117 Nm (86 ft-lb)
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The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
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