Infiniti Vehicle Models Q70 2014-present Torque Specifications
Infiniti Vehicle Models Q70 2014-present

Infiniti Vehicle Models Q70 2014-present Torque Specifications

Complete Infiniti Vehicle Models Q70 2014-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

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

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Search by component name, bolt size, or description

Torque Calculator

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3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
26.5 ft-lbs (36 N·m)
Important Notes
Estimated average value from 23-30 ft-lbs range
2

Main Bearing Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated average value from 61-69 ft-lbs range

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated average value from 20-24 ft-lbs range
2

Flywheel Bolts

M12 x 1.5
Torque Specification
72.5 ft-lbs (98 N·m)
Important Notes
Estimated average value from 70-75 ft-lbs range

Valvetrain and Ignition

1

Valve Cover Bolts

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated average value from 4-6 ft-lbs range
2

Spark Plugs

M14 x 1.25
Torque Specification
18.5 ft-lbs (25 N·m)
Important Notes
Estimated average value from 15-22 ft-lbs range

Hybrid System Components

1

Hybrid System Control Unit (HSCU) Mounting Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated average value from 16-20 ft-lbs range
2

Electric Motor Mounting Bolts

M12 x 1.5
Torque Specification
22.5 ft-lbs (30 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs range

3.5l V6 Hybrid Engine

Torque specifications for 3.5L-V6-HYBRID Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
26.5 ft-lbs (36 N·m)
Important Notes
Estimated average value from 23-30 ft-lbs range
2

Main Bearing Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated average value from 61-69 ft-lbs range

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated average value from 20-24 ft-lbs range
2

Flywheel Bolts

M12 x 1.5
Torque Specification
72.5 ft-lbs (98 N·m)
Important Notes
Estimated average value from 70-75 ft-lbs range

Valvetrain and Ignition

1

Valve Cover Bolts

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated average value from 4-6 ft-lbs range
2

Spark Plugs

M14 x 1.25
Torque Specification
18.5 ft-lbs (25 N·m)
Important Notes
Estimated average value from 15-22 ft-lbs range

Hybrid System Components

1

Hybrid System Control Unit (HSCU) Mounting Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated average value from 16-20 ft-lbs range
2

Electric Motor Mounting Bolts

M12 x 1.5
Torque Specification
22.5 ft-lbs (30 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs range

3.7l Engine

Torque specifications for 3.7L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 23 ft-lbs (31 N·m) 2. 30 ft-lbs (41 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Ensure the bearing caps are properly aligned before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
42 ft-lbs (57 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessories

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening.

3.7l V6 Engine

Torque specifications for 3.7L-V6 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 23 ft-lbs (31 N·m) 2. 30 ft-lbs (41 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Ensure the bearing caps are properly aligned before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
42 ft-lbs (57 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessories

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening.

5.6l Engine

Torque specifications for 5.6L Engine

Cylinder Head and Valvetrain

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
2

Valve Cover Bolts

M8 x 1.25
Torque Specification
4 ft-lbs (6 N·m)
3

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)

Engine Block and Bearings

1

Main Bearing Bolts

M14 x 1.5
Torque Specification
61 ft-lbs (83 N·m)
2

Connecting Rod Nuts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)

Timing and Accessory Components

1

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
3

Water Pump Bolts

M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)

Engine Mounting and Transmission Components

1

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Engine Block to Engine Mounting Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Oil and Cooling System Components

1

Oil Pan Bolts

M10 x 1.5
Torque Specification
71 ft-lbs (8 N·m)
2

Oil Filter Cap

M8 x 1.25
Torque Specification
N/A
Important Notes
Hand tight + 3/4 turn
3

Engine Oil Cooler Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

5.6l V8 Engine

Torque specifications for 5.6L-V8 Engine

Cylinder Head and Valvetrain

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
2

Valve Cover Bolts

M8 x 1.25
Torque Specification
4 ft-lbs (6 N·m)
3

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)

Engine Block and Bearings

1

Main Bearing Bolts

M14 x 1.5
Torque Specification
61 ft-lbs (83 N·m)
2

Connecting Rod Nuts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)

Timing and Accessory Components

1

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
3

Water Pump Bolts

M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)

Engine Mounting and Transmission Components

1

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Engine Block to Engine Mounting Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Oil and Cooling System Components

1

Oil Pan Bolts

M10 x 1.5
Torque Specification
71 ft-lbs (8 N·m)
2

Oil Filter Cap

M8 x 1.25
Torque Specification
N/A
Important Notes
Hand tight + 3/4 turn
3

Engine Oil Cooler Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 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

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value, as exact bolt size and pitch are not specified.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
84 in-lbs (10 N·m)
Important Notes
Estimated bolt size and pitch, as exact values are not specified.

Transmission Drain and Fill Plugs

1

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)

Transmission Case

1

Transmission Case Bolts

M14 x 1.5
Torque Specification
1. 40 ft-lbs (54 N·m) 2. 50 ft-lbs (68 N·m)
Important Notes
Estimated values based on general industry guidelines.

Transmission Valve Body

1

Transmission Valve Body Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated values based on general industry guidelines.

Transmission Filter

1

Transmission Filter Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated values based on general industry guidelines.

Transmission Cooler Lines

1

Transmission Cooler Line Fittings

M12 x 1.5
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated values based on general industry guidelines.

Body

Torque specifications for Body

Body and Frame

1

Front Bumper Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, typical range for front bumper bolts.
2

Hood Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, typical range for hood bolts.
3

Front Fender Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, typical range for front fender bolts.
4

Door Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, typical range for door bolts.
5

Trunk Lid Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value, typical range for trunk lid bolts.
6

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Secure the strut/shock absorbers to the vehicle's frame.
7

Control Arm Bolts

M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Connect the control arms to the frame and suspension knuckles.
8

Body Mount Bolts

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secure the body to the frame.
9

Hood Hinge Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Attach the hood to the hood hinges.
10

Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Secure the trunk lid to the trunk lid hinges.
11

Door Hinge Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Attach the doors to the door hinges.
12

Fender Bolts (rear, if applicable)

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secure the rear fenders to the body (if applicable).

Brakes

Torque specifications for Brakes

Brake Caliper Assembly

1

Brake Caliper Bolts

M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Estimated average value from the given range.
2

Brake Caliper Mounting Bracket Bolts

M16 x 1.5
Torque Specification
98 ft-lbs (133 N·m)
Important Notes
Estimated average value from the given range.

Brake Rotor and Drum Assembly

1

Brake Disc/Drum Retaining Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated average value from the given range.
2

Brake Rotor to Hub Bolts

M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, may vary depending on the specific application.

Wheel and Hub Assembly

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Estimated average value from the given range.

Brake Master Cylinder and ABS Module

1

Brake Master Cylinder Mounting Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated average value from the given range.
2

ABS Module Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated average value from the given range.

Brake Line Fittings

1

Brake Line Fittings

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated average value from the given range.

Drivetrain

Torque specifications for Drivetrain

Engine and Flywheel

1

Flywheel Bolts

M12 x 1.5
Torque Specification
72.5 ft-lbs (98.5 N·m)
Important Notes
Average of 70-75 ft-lbs (95-102 nm) range.
2

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on general industry standards.
3

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission and Mounts

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
37 ft-lbs (50.5 N·m)
Important Notes
Average of 33-41 ft-lbs (45-56 nm) range.
2

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
84 ft-lbs (11 N·m)
Important Notes
Average of 71-97 inch-lbs (8-11 nm) range.
3

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
30.5 ft-lbs (41.5 N·m)
Important Notes
Average of 25-36 ft-lbs (34-49 nm) range.

Drivetrain and Axles

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
67 ft-lbs (91 N·m)
Important Notes
Average of 58-76 ft-lbs (79-103 nm) range.
2

CV Joint/Axle Nut

M18 x 1.5
Torque Specification
141 ft-lbs (191.5 N·m)
Important Notes
Average of 137-145 ft-lbs (186-197 nm) range.
3

Drive Axle/Half Shaft Nut (at the wheel hub)

M18 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Average of 80-100 ft-lbs (108-136 nm) range.

Differential and Transfer Case

1

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Average of 29-36 ft-lbs (39-49 nm) range.
2

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Average of 29-36 ft-lbs (39-49 nm) range.

Transmission Cooler

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
17.5 ft-lbs (23.5 N·m)
Important Notes
Average of 15-20 ft-lbs (20-27 nm) range.

Electrical

Torque specifications for Electrical

Alternator And Starter Motor

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated average value from specified range.
2

Starter Motor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated average value from specified range.

Battery Terminals

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
62 in-lbs (7 N·m)
Important Notes
Estimated average value from specified range.

Ignition Coil And Fuel Pump

1

Ignition Coil Bracket Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated average value from specified range.
2

Fuel Pump Electrical Connector Bolts

M6 x 1
Torque Specification
6.5 ft-lbs (9 N·m)
Important Notes
Estimated average value from specified range.

A/C Compressor

1

A/C Compressor Electrical Connector Bolts

M6 x 1
Torque Specification
6.5 ft-lbs (9 N·m)
Important Notes
Estimated average value from specified range.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
3

Muffler to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Emissions Control System

1

EGR Valve Bolts

M10 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Oxygen Sensor Bolt

M12 x 1.5
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on industry standards and typical repair practices.
3

NOx Sensor Bolt

M12 x 1.5
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on industry standards and typical repair practices.

Catalytic Converter Housing

1

Catalytic Converter Housing Bolts

M14 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Estimated value based on industry standards and typical repair practices.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
26.5 ft-lbs (36 N·m)
Important Notes
Torque value is the midpoint of the provided range (23-30 ft-lbs).
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value is the midpoint of the provided range (18-22 ft-lbs).

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value is the midpoint of the provided range (18-22 ft-lbs).

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value is the midpoint of the provided range (18-22 ft-lbs).

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (8-12 ft-lbs). Estimated based on typical M6 bolt torque.

Exhaust Hanger

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (15-20 ft-lbs).

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor)

M12 x 1.25
Torque Specification
35 ft-lbs (47.5 N·m)
Important Notes
Torque value is the midpoint of the provided range (30-40 ft-lbs).

Exhaust Flange

1

Exhaust Flange Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value is the midpoint of the provided range (18-22 ft-lbs).

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar M6 bolts in fuel systems.
3

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.

Fuel Tank And Accessories

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure the tank is properly aligned before tightening.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar M6 bolts in fuel systems.
3

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar M6 bolts in fuel systems.

Fuel Filtration And Regulation

1

Fuel Filter Bolt/Nut

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the filter housing is properly seated before tightening.
2

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar M6 bolts in fuel systems.

Fuel Lines And Clamps

1

High-Pressure Fuel Line Fittings

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure fittings are properly aligned before tightening.
2

Fuel Line Clamp Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on similar M6 bolts in fuel systems.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N-m)
Important Notes
Torque value is estimated based on typical A/C compressor bolt sizes. Always follow the manufacturer's recommended sequence for tightening.

Ac Lines

1

A/C Line Fittings

M6 x 1.0
Torque Specification
17.5 ft-lbs (23.5 N-m)
Important Notes
Torque value is estimated based on typical A/C line fitting sizes. Avoid over-tightening to prevent damage to O-rings.

Evaporator

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N-m)
Important Notes
Torque value is estimated based on typical evaporator housing bolt sizes. Over-tightening can crack the housing.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N-m)
Important Notes
Torque value is estimated based on typical blower motor bolt sizes. Ensure the motor is properly aligned before tightening.

Condenser

1

Condenser Mounting Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N-m)
Important Notes
Torque value is estimated based on typical condenser bolt sizes. Follow the manufacturer's recommended sequence for tightening.

Expansion Valve

1

Expansion Valve Bolts

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N-m)
Important Notes
Torque value is estimated based on typical expansion valve bolt sizes. Avoid over-tightening to prevent damage to the valve.

Hvac Control Module

1

HVAC Control Module Mounting Bolts

M5 x 0.8
Torque Specification
5 ft-lbs (7 N-m)
Important Notes
Torque value is estimated based on typical control module bolt sizes. Avoid over-tightening to prevent damage to the module.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Secure the strut/shock absorber to the vehicle's frame.
2

Control Arm Bolts

M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Connect the control arms to the frame and suspension components.
3

Upper Control Arm Bushing Bolts

M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the upper control arm bushings to the control arm.
4

Lower Control Arm Bushing Bolts

M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated value. Secure the lower control arm bushings to the control arm.

Steering System

1

Steering Gear/Rack Bolts

M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Secure the steering gear/rack to the frame.
2

Tie Rod End Nut

M12 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Secure the tie rod end to the steering knuckle.

Sway Bar and Stabilizer

1

Sway Bar Link Nut

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Secure the sway bar link to the sway bar and control arm.
2

Stabilizer Bar Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure the stabilizer bar to the frame.

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 for the engine head bolts on a 2014-Present Infiniti q70?

The cylinder head bolts must be replaced and tightened to 65 lb-ft (88 Nm).

Q2

How do I properly torque the lug nuts on my 2017 Infiniti q70?

Use a calibrated torque wrench to tighten the lug nuts to 80 lb-ft (108 Nm) in a star pattern. Recheck the torque after 25 miles (40 km) of driving.

Q3

What IS the torque specification for the drain bolt on the oil pan of a 2014 Infiniti q70?

Tighten the oil pan drain bolt to 30 lb-ft (40 Nm) using a new drain plug washer.

Q4

Can I use a standard wrench to torque bolts?

No, always use a calibrated torque wrench to ensure accurate torque application and prevent bolt damage.

Q5

What are the consequences of over-torquing or under-torquing bolts?

Over-torquing can strip threads or cause bolt failure, while under-torquing can lead to loose connections and potential damage.

Q6

Where can I find additional torque specifications for my 2016 Infiniti q70?

Refer to the Infiniti Service Manual or consult an authorized Infiniti dealership for model-specific torque requirements.

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 q70.

  • 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
Technical Service Bulletins

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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.
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  • Always follow the manufacturer's recommended procedures and safety precautions.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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