Acura Vehicle Models RL 2005-2012 Torque Specifications
Acura Vehicle Models RL 2005-2012

Acura Vehicle Models RL 2005-2012 Torque Specifications

Complete Acura Vehicle Models RL 2005-2012 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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Torque Calculator

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3.5l Engine

Torque specifications for 3.5L Engine

3.5l Engine Cylinder Head

1

Cylinder Head Bolts

M11 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Final torque value; multi-step tightening and sequence required. Refer to service manual for full procedure and sequence details.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even clamping.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to prevent binding.
4

Camshaft Sensor Bolt(s)

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated before tightening. Estimated value.
5

Variable Timing Solenoid/Actuator Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure solenoid/actuator is properly seated before tightening. Estimated value.
6

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a sequence starting from the center and moving outwards to ensure even clamping pressure.

3.5l Engine Block

1

Main Bearing Bolts

M10 x 1.5
Torque Specification
56 ft-lbs (76 N·m)
Important Notes
Multi-step tightening and sequence required; refer to service manual for full procedure.
2

Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even sealing.
3

Timing Belt/Chain Tensioner Bolt

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure correct tensioner position before tightening.
4

Crankshaft Sensor Bolt(s)

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated before tightening. Estimated value.
5

Knock Sensor Bolt(s)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure sensor is properly seated before tightening. Estimated value.
6

Oil Filter Housing Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper housing alignment before tightening.
7

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new crush washer/seal for each installation. Ensure bolt is properly aligned.
8

Water Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even clamping.
9

Engine Mount Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Tighten all engine mount bolts.

3.5l Engine Rotating Assembly

1

Connecting Rod Nuts

M9 x 1.25
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
Often includes an additional angle-tightening step; refer to the service manual. Proper torque is critical for correct bearing crush.
2

Flywheel Bolts

M10 x 1.25
Torque Specification
94 ft-lbs (128 N·m)
Important Notes
Apply a light coat of thread locker. Tighten in a star pattern.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
High torque is required. Ensure proper alignment and support before tightening.

3.5l Engine Intake System

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a criss-cross pattern to prevent vacuum leaks.
2

Throttle Body Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to prevent vacuum leaks.
3

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to prevent exhaust leaks.
4

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to prevent fuel leaks.
5

Fuel Injector Bolts

M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Tighten evenly to prevent fuel leaks.

3.5l Engine Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Tighten evenly to prevent exhaust leaks. Note this is for bolts mounting the exhaust pipe to the manifold.

3.5l Engine Cooling System

1

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten evenly to ensure proper pulley alignment.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten evenly to prevent coolant leaks.
3

Coolant Temperature Sensor Bolt(s)/Nut(s)

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure sensor is properly seated before tightening. Estimated value.

3.5l Engine Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper tensioner alignment before tightening.
2

Drive Belt Idler Pulley Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper idler pulley alignment before tightening.
3

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper pump alignment before tightening.
4

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alternator alignment before tightening.
5

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper compressor alignment before tightening.

3.5l Engine Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Tighten evenly to ensure good coil contact.

3.5l Engine Camshaft System

1

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Ensure correct camshaft sprocket alignment before tightening. Correct torque is crucial for proper valve timing

3.7l Engine

Torque specifications for 3.7L Engine

3.7l Engine Cylinder Head

1

Cylinder Head Bolts

M11 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten cylinder head bolts in the correct sequence to ensure even clamping pressure. Refer to the service manual for the specific tightening pattern.
2

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten these bolts evenly to ensure proper rocker arm shaft alignment.
3

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten camshaft bearing cap bolts evenly in the correct sequence to ensure proper camshaft alignment. Estimated value based on similar engine components.
4

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten valve cover bolts evenly to prevent leaks. Use a criss-cross pattern.
5

Spark Plugs

M14 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure the spark plug threads are clean and that plugs are torqued correctly. Do not overtighten.

3.7l Engine Block

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
56 ft-lbs (76 N·m)
Important Notes
Tighten main bearing bolts in the correct sequence to ensure proper crankshaft alignment and bearing clearances.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
Tighten connecting rod nuts evenly to ensure correct bearing crush.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten oil pan bolts evenly in a criss-cross pattern to prevent leaks.
4

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper tensioner installation and torque to maintain correct timing belt/chain tension.
5

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the crankshaft position sensor is securely mounted. Estimated value.
6

Oil Filter Housing Bolt

M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper torque for secure oil filter housing seal.
7

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Tighten the oil drain plug to the correct torque to prevent leaks and avoid damaging threads.

3.7l Engine Intake System

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten intake manifold bolts in the correct sequence to ensure a tight seal and prevent vacuum leaks. Refer to the service manual for the specific tightening pattern.
2

Throttle Body Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten throttle body bolts evenly to prevent air leaks.
3

EGR Valve Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten EGR valve bolts evenly to prevent exhaust leaks and ensure proper function.
4

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten fuel rail bolts evenly to prevent fuel leaks.
5

Fuel Injector Bolts

M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Tighten fuel injector bolts evenly to maintain a fuel-tight seal.

3.7l Engine Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Tighten exhaust manifold/header bolts in the correct sequence to prevent exhaust leaks. Refer to the service manual for the specific tightening pattern.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten exhaust manifold bolts to cylinder head evenly to prevent leaks.

3.7l Engine Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten water pump bolts evenly to ensure a secure and leak-free mount.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten water pump pulley bolts evenly to prevent loosening and system malfunction.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten thermostat housing bolts evenly to prevent coolant leaks.

3.7l Engine Accessories And Other

1

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Ensure the crankshaft pulley/harmonic balancer bolt is torqued to spec to prevent it from loosening.
2

Flywheel Bolts

M10 x 1.25
Torque Specification
94 ft-lbs (128 N·m)
Important Notes
Tighten flywheel bolts evenly to ensure secure power transmission.
3

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Ensure camshaft sprocket bolts are properly torqued for correct timing and secure mounting.
4

Ignition Coil Bolt

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Tighten ignition coil bolts to the specified torque for secure electrical connections.
5

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten power steering pump mounting bolts to the specified torque to prevent vibration and ensure secure mounting.
6

Engine Mount Bolts to Block

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten engine mount bolts to the block to prevent excessive vibration and ensure proper mounting of the engine to the chassis. Estimated Value.

Body

Torque specifications for Body

Body Fuel System

1

Fuel Tank Strap Bolts

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure straps are positioned correctly before tightening.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, ensure proper alignment.

Body Exterior Panels

1

Fender Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque, use a cross tightening sequence. Ensure proper panel alignment before torquing.
2

Bumper Cover Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque, do not overtighten, check panel gaps.
3

Grille Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque. Check that the grille is fully seated before tightening.
4

Body Panel Mounting/Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque, use a cross tightening sequence. Check panel alignment during tightening.

Body Lighting

1

Headlight Assembly Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque. Ensure proper headlight alignment after tightening.
2

Taillight Assembly Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque. Make sure the taillight housing is properly seated.

Body Structural

1

Radiator Support Mounting Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated torque. Ensure proper alignment before tightening.

Body Hinges

1

Door Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
1. 16 ft-lbs (22 N·m) 2. 22 ft-lbs (30 N·m)
Important Notes
Estimated range due to potential bolt size variation, use middle value if unsure. Check door alignment after tightening.
2

Hood Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
1. 16 ft-lbs (22 N·m) 2. 22 ft-lbs (30 N·m)
Important Notes
Estimated range due to potential bolt size variation, use middle value if unsure. Ensure proper hood alignment after tightening.

Brakes

Torque specifications for Brakes

Brake System Caliper

1

Brake Caliper Guide Pin Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure guide pins are properly lubricated with brake caliper grease before installation. Tighten evenly to specified torque.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even clamping force. Ensure the mounting surface is clean.
3

Brake Pad Retaining Pin/Bolt

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Do not over tighten, as this can cause binding of the brake pads.
4

Anti-Rattle Clip Bolt/Pin (if applicable)

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not over tighten, as this can cause binding of the anti-rattle hardware. Value is estimated based on similar bolt sizes.

Brake System Rotor Drum

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts are not structural and only hold the rotor/drum during wheel installation. Do not over tighten. Ensure rotor is seated properly on the hub.

Brake System Hydraulic

1

Brake Bleeder Screw

M7 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Do not over tighten as this can damage the screw or caliper. This is an estimated value.
2

Brake Line/Hose Banjo Bolt

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new crush washers when installing banjo bolts. Ensure fitting is properly aligned. This is an estimated value.

Brake System Abs

1

ABS Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over tighten, as this can damage the sensor. This is an estimated value.

Wheel System

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Tighten in a star pattern. Ensure the wheel is properly seated on the hub. Check torque again after 50-100 miles.

Drivetrain

Torque specifications for Drivetrain

Engine Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
94 ft-lbs (128 N·m)
Important Notes
Tighten bolts in a star pattern. Always use new bolts if the manufacturer recommends.
2

Torque Converter Bolts (to Flexplate)

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Tighten bolts in a circular pattern. Torque value is an estimated value based on similar bolt sizes. Always use new bolts if the manufacturer recommends.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening the mounting bolts.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even pressure on the gasket. Do not overtighten.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer on drain plugs to prevent leaks.
4

Output Shaft Flange Bolt

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Tighten bolts in a star pattern. Torque value is estimated based on similar bolts.

Driveshaft

1

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (56 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even pressure. Inspect bolts for wear.
2

Center Support Bearing Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper alignment of the center support bearing before tightening the bolts.

Drive Axle

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even clamping force on the axle flange.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Use a new axle nut for installation. Torque must be accurate to maintain proper wheel bearing preload. Ensure proper wheel bearing seating.

Differential

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Use a new sealing washer on drain plugs to prevent leaks.
2

Rear Differential Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper alignment of the differential before tightening the mounting bolts. Torque value is estimated based on similar mounting bolts.
3

Rear Differential Case Cover Bolts

M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even pressure on the gasket. Torque value is an estimate.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer on drain plugs to prevent leaks.

Electrical

Torque specifications for Electrical

3.0l Engine Ignition System

1

Ignition Coil Mounting Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure proper seating of coil before tightening. Over-tightening can damage the valve cover.

3.0l Engine Starting System

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment with flywheel. Over-tightening can damage starter and block.

3.0l Engine Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure correct alignment and belt tension. Over-tightening can damage mounting bracket or alternator.

Vehicle Electrical Power Distribution

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten. Over-tightening can damage battery terminals and cause poor connections.
2

Ground Strap Bolts (Engine to Chassis)

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure good contact between the ground strap and the chassis/engine mounting point. This value is an estimated standard for M8 bolts.
3

Fuse Box/Relay Box Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten, as the housing may be plastic. Over-tightening can crack the housing.
4

Main Power Distribution Box (under hood) Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment and secure mounting for main power distribution.
5

Interior Fuse Box Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten, as the housing may be plastic. Over-tightening can crack the housing.

Vehicle Powertrain Control System

1

ECM/PCM Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten. Over-tightening can damage the module and mounting tabs.

Vehicle Exterior Lighting

1

Headlight Assembly Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten. Over-tightening can crack the plastic housing.
2

Tail Light Assembly Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over-tighten. Over-tightening can crack the plastic housing.

Emissions Sensors

Torque specifications for Emissions_sensors

3.0l Engine Cylinder Head

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts in a sequence specified by the service manual, typically from the center outwards to ensure even clamping pressure and proper gasket seal.

3.0l Exhaust System

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Tighten bolts in the sequence prescribed in the service manual.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure proper gasket alignment.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure a new gasket is used and is properly aligned before tightening.
4

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure proper gasket alignment before tightening.
5

Oxygen Sensor (O2 Sensor) Mounting Bolt/Stud

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten to ensure proper sealing and electrical ground of the sensor. Estimated value, refer to sensor documentation if available.

3.0l Intake System

1

Mass Air Flow (MAF) Sensor Mounting Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value, use caution not to over-tighten and damage the sensor housing.
2

Intake Air Temperature (IAT) Sensor Mounting Bolt/Screw

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, use caution not to over-tighten and damage the sensor.
3

Throttle Position Sensor (TPS) Mounting Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, use caution not to over-tighten and damage the sensor.

3.0l Fuel System

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment of the fuel rail and use new O-rings for the injectors.

3.0l Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper gasket alignment.

Exhaust

Torque specifications for Exhaust

3.0l Engine Cylinder Head

1

Exhaust Manifold/Header to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Bolts directly connecting the exhaust manifold/headers to the cylinder head. Use a criss-cross pattern for even clamping.
2

Exhaust Manifold/Header Studs (if applicable)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque for studs used to mount exhaust manifold/header. Estimated value; actual torque may vary based on application. Do not over tighten.

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Bolts attaching the exhaust manifold to engine block. Use a criss-cross pattern for even clamping.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Bolts or studs/nuts connecting the exhaust pipe to the exhaust manifold/headers. Includes spring bolts. Use a criss-cross pattern for even clamping.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Bolts connecting the catalytic converter to the exhaust pipe. Use a criss-cross pattern for even clamping.

Exhaust System

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Bolts (sometimes with springs) attaching the muffler to the exhaust pipe. Use a criss-cross pattern for even clamping.
2

Exhaust Flange Bolts (Non-Spring)

M10 x 1.5
Torque Specification
33 ft-lbs (44 N·m)
Important Notes
Torque for non-spring-loaded exhaust flange bolts. Estimated value based on M10 bolts; actual torque may vary slightly. Use a criss-cross pattern for even clamping.
3

Oxygen Sensor

M18 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Torque specification for oxygen sensor. Estimated based on standard M18 sensors; actual torque may vary slightly. Ensure the sealing washer is correctly placed.
4

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Bolts securing exhaust system rubber hangers. Do not over tighten as these bolts often go into thin sheetmetal.

Fuel

Torque specifications for Fuel

3.0l Fuel System Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper tightening sequence to prevent leaks. Torque bolts evenly.
2

Fuel Injector Mounting Bolts/Screws

M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Do not overtighten; ensure proper o-ring seal. Tighten evenly to avoid injector damage and vacuum leaks.
3

Fuel Pressure Regulator Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated torque value. Ensure proper seating to prevent fuel leaks.
4

Fuel Line Banjo Bolts (to Fuel Rail)

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new crush washers. Ensure proper sealing to prevent fuel leaks. If bolt size is M10, torque to 18 ft-lbs (25 N·m).
5

Fuel Line Banjo Bolts (to Fuel Filter)

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use new crush washers. Ensure proper sealing to prevent fuel leaks. If bolt size is M12, torque to 25 ft-lbs (34 N·m).

3.0l Fuel System Fuel Tank

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque evenly to ensure proper seal and prevent leaks.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts evenly to secure the fuel tank.
3

Fuel Pump Lock Ring

N/A (Lock Ring)
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the lock ring is properly engaged to the tank threads. Use a proper lock ring tool. Do not overtighten or it may damage the ring.

3.0l Fuel System Misc

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten. Ensures a good seal for refueling.
2

Fuel Filter Bolt/Nut

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten securely to prevent leaks.

H5 Transmission

Torque specifications for H5 Transmission

H5 Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even pressure.
2

Transmission Mount Bracket Bolts (to transmission)

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
These bolts secure the mount bracket to the transmission case. Ensure proper alignment before tightening.

H5 Transmission Case

1

Transmission Case Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even clamping of the case halves. Estimated value.
2

Differential Cover Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even sealing. Estimated Value.

H5 Transmission Bellhousing

1

Transmission Bellhousing Bolts (to engine block)

M12 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Tighten bolts in a cross pattern. Estimated value.
2

Torque Converter Bolts (to flywheel)

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Tighten bolts in a star pattern. Ensure torque converter is fully seated before tightening. Estimated value.

H5 Transmission External

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even seal compression.
2

Transmission Fluid Cooler Line Fittings

M16 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure no cross-threading. Estimated Value.
3

Shift Cable Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the shift cable bracket is properly positioned before tightening.
4

Range Switch Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Do not over-tighten, as it can damage the sensor. Estimated Value.

H5 Transmission Drivetrain

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even pressure on the flange.

H5 Transmission Fluid Service

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer on installation. Do not over-tighten.
2

Transmission Fluid Drain/Fill Plug

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer on installation. Do not over-tighten.

Hvac

Torque specifications for Hvac

A/C Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Critical to securing the compressor to the engine block, ensuring proper alignment and preventing vibration.
2

A/C Compressor Clutch Bolt

M12 x 1.75
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Responsible for securing the clutch to the compressor shaft. Proper torque ensures the clutch is properly engaged and disengaged.

A/C Condenser

1

A/C Condenser Mounting Bolts

M12 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Essential to securing the condenser to the radiator support or frame. Proper torque ensures the condenser is properly aligned and secured.

A/C Evaporator

1

A/C Evaporator Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Critical to securing the evaporator to the dashboard or HVAC housing. Proper torque ensures the evaporator is properly aligned and secured.

A/C Refrigerant Lines

1

A/C Line Fittings

M10 x 1.5
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Responsible for connecting the refrigerant lines to the compressor, condenser, and evaporator. Proper torque ensures a leak-free seal.
2

A/C Refrigerant Line Bracket Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Responsible for securing the refrigerant lines to the engine compartment or frame. Proper torque ensures the lines are properly secured.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the top and bottom of the strut/shock to the chassis and knuckle.
2

Front Upper Control Arm Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Connects the upper control arm to the vehicle frame.
3

Control Arm Bolts (Lower)

M14 x 1.5
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Attaches the lower control arm to the frame/subframe and knuckle.
4

Ball Joint Nut

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the ball joint to the control arm or steering knuckle.
5

Tie Rod End Nut

M12 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Secures the tie rod end to the steering knuckle.
6

Sway Bar Link Nut

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Attaches the sway bar links to the sway bar and strut.
7

Sway Bar Mounting Bracket Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the sway bar bushings to the chassis.
8

Front Shock/Strut Assembly to Steering Knuckle Bolts/Nuts

M14 x 1.5
Torque Specification
72 ft-lbs (98 N·m)
Important Notes
These bolts/nuts attach the bottom of the shock/strut to the steering knuckle.

Rear Suspension

1

Rear Upper Control Arm Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Connects the rear upper control arm to the frame or subframe.
2

Rear Lower Control Arm Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Connects the rear lower control arm to the chassis.
3

Rear Trailing Arm Mounting Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Connects the trailing arm to the chassis.
4

Rear Shock Lower Mount Bolt

M12 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Attaches the lower end of the shock absorber to the control arm or knuckle.
5

Rear Shock Upper Mount Bolts

M10 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Secures the upper end of the shock absorber to the chassis.

Abs System

1

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the wheel speed sensor to the knuckle.

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 torque specification for the lug nuts on a 2008 Acura RL?

129 ft-lbs

Q2

What size socket do I need to use to tighten the lug nuts?

19 mm

Q3

Do I need to use a torque wrench to tighten the lug nuts?

Yes, it IS highly recommended to use a torque wrench to ensure the lug nuts are tightened to the correct specification.

Q4

What IS the torque specification for the oil drain plug on a 2012 Acura RL?

29 ft-lbs

Q5

Can I use a regular wrench to tighten the oil drain plug?

No, you should always use a torque wrench to tighten the oil drain plug to the correct specification.

Q6

What IS the torque specification for the spark plugs on a 2005 Acura RL?

18 ft-lbs

Q7

How often should I check the torque on the lug nuts?

At least once a year, or more often if you drive in harsh conditions.

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 RL.

  • 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.
  • 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

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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