Acura Vehicle Models CL 1997-1999 Torque Specifications
Acura Vehicle Models CL 1997-1999

Acura Vehicle Models CL 1997-1999 Torque Specifications

Complete Acura Vehicle Models CL 1997-1999 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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3.0l Engine

Torque specifications for 3.0L Engine

3.0l Engine Cylinder Head

1

Cylinder Head Bolts

M11 x 1.5
Torque Specification
1. 16 ft-lbs (22 N·m) 2. Refer to Service Manual°
Important Notes
Cylinder head bolts require an additional torque sequence or angle-torque tightening procedure after the initial torque. Refer to the service manual for specific instructions and tightening sequence. Torque-to-yield bolts, replace bolts before re-assembly.
2

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
These bolts secure the camshaft bearing caps to the cylinder head. Ensure proper alignment of the bearing caps before torquing. Use a criss-cross pattern when torquing.
3

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even sealing. Avoid over-tightening.
4

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
These bolts secure the rocker arm shafts to the cylinder head. Make sure to install the bolts evenly and in the correct orientation.
5

Spark Plugs

M14 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure proper thread engagement by starting spark plugs by hand. Avoid over-tightening.

3.0l 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 clamping of the crankshaft. Ensure bolts are properly lubricated.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the connecting rod cap is properly aligned before torquing. Always replace nuts when reassembling, ensure that they are lubricated properly.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Tighten oil pan bolts in a criss-cross pattern to ensure even sealing.
4

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the tensioner is properly positioned before torquing.
5

Oil Filter Housing Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the sealing surfaces are clean and the oil filter housing is properly aligned before torquing.
6

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Always use a new sealing washer, when replacing the oil drain plug. Avoid over tightening.
7

Water Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten water pump bolts in a criss-cross pattern to ensure proper seal.
8

Thermostat Housing Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the thermostat is properly positioned and the sealing surfaces are clean before torquing.
9

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the tensioner is properly aligned and the belt has the correct tension.
10

Drive Belt Idler Pulley Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure that the idler pulley is properly aligned.
11

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper seating of the knock sensor before tightening. Do not over tighten.
12

Engine Mount Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
These bolts secure the engine to the chassis. Always torque to the specification.

3.0l Engine Intake Manifold

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even sealing. Avoid over-tightening.
2

Intake Manifold Support Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the intake manifold support bracket. Ensure proper alignment of the support bracket before torquing.
3

Throttle Body Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the throttle body is correctly positioned before torquing.
4

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the EGR valve is correctly positioned before torquing.
5

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper seating and alignment before torquing the fuel rail.
6

Fuel Injector Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper seating and alignment of the fuel injectors.

3.0l Engine Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten exhaust manifold bolts in the correct sequence to ensure a proper seal. Be sure to tighten bolts in multiple steps.

3.0l Engine Flywheel

1

Flywheel Bolts

M10 x 1.5
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Ensure proper alignment of the flywheel before torquing. Always use new bolts.

3.0l Engine Accessory Drive

1

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
134 ft-lbs (182 N·m)
Important Notes
Use a crankshaft pulley holding tool to prevent rotation while torquing. Ensure proper alignment of the crankshaft pulley.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the water pump pulley before torquing.

3.0l Engine Ignition

1

Distributor Bolt(s)

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure that the distributor is correctly aligned and seated before tightening.

3.0l Engine Camshaft

1

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
56 ft-lbs (76 N·m)
Important Notes
Ensure that the camshaft sprocket is properly aligned before torquing.

B7xa Transmission

Torque specifications for B7xa Transmission

B7xa Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the transmission to the engine block and/or frame. Ensure bolts are clean and lightly oiled before installation.

B7xa Transmission Case

1

Transmission Case Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the transmission case halves. Tighten in a star pattern. Estimated value based on common M10 bolt size. Verify bolt size before assembly.

B7xa Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Secures the transmission oil pan to the transmission case. Use a torque wrench capable of reading in inch-pounds for best results. Tighten in a criss-cross pattern.

B7xa Transmission Plugs

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Secures the transmission drain and fill plugs. Use new washers or seals if needed.

B7xa Drivetrain

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Secures the drive axles to the transmission output flanges. Tighten in a star pattern.
2

CV Joint/Axle Nut

M22 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Secures the outer CV joint to the wheel hub. High-torque spec, crucial for proper assembly and safety. Typically a new nut should be used every time it is removed.

B7xa Shift Linkage

1

Shift Linkage Bolts/Nuts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the shift linkage to the transmission and other components. Proper torque is essential for smooth and accurate shifting.

B7xa Sensors

1

Speed Sensor Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the vehicle speed sensor to the transmission case. Do not over-tighten. Ensure sensor is correctly positioned before tightening.

Body

Torque specifications for Body

Body Fuel System

1

Fuel Tank Strap Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensures secure attachment of fuel tank to the vehicle's underbody. Assumes clean, dry threads.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures fuel filler neck to the body, ensuring proper sealing and preventing leaks. Assumes clean, dry threads.

Body Panels

1

Door Hinge Bolts

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Estimated average value. Torque may vary slightly depending on bolt location and hinge type. Use a calibrated torque wrench. Assumes clean, dry threads.
2

Fender Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated average value for fender attachment bolts. Torque may vary based on bolt location. Assumes clean, dry threads.
3

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated average value for hood hinge bolts. Check hood alignment after tightening. Assumes clean, dry threads.
4

Hood Latch Mounting Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Secures hood latch mechanism to the body. Ensuring proper hood latch operation and safety. Assumes clean, dry threads.

Body Exterior

1

Bumper Mounting Bolts (Front and Rear)

M8 x 1.25
Torque Specification
21 ft-lbs (28 N·m)
Important Notes
Estimated average value for bumper mounting bolts. Torque may vary based on location. Assumes clean, dry threads.
2

Headlight/Tailight Mounting Bolts

M5 x 0.8
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Secures lighting units to the body. Avoid overtightening which may crack plastic components. Assumes clean, dry threads.
3

Grille Mounting Bolts

M5 x 0.8
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Secures the grille to the front fascia. Avoid overtightening which may crack plastic components. Assumes clean, dry threads.
4

Side Molding/Trim Bolts/Clips

N/A (typically clips)
Torque Specification
2 ft-lbs (3 N·m)
Important Notes
Usually secured with plastic clips or very low torque if bolts are used. Exercise caution when installing to avoid damaging trim pieces. Typically, hand-tight. Estimated values if bolts are used.

Body Interior

1

Seat Mounting Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Secures seat frame to the body. Ensure proper torque for safety. Assumes clean, dry threads.

Brakes

Torque specifications for Brakes

Brakes Calipers

1

Brake Caliper Guide Pin Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the caliper to the mounting bracket. Ensure proper lubrication of guide pins.
2

Brake Caliper Bleeder Screw

M10 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Torque value estimated. Refer to manufacturer’s service manual for specific torque.
3

Brake Hose to Caliper Banjo Bolt

M10 x 1.0
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure new copper crush washers are used and properly aligned. Torque value estimated.

Brakes Mounting Brackets

1

Brake Caliper Mounting Bracket Bolts

M12 x 1.25
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Secures the caliper mounting bracket to the steering knuckle or hub. Clean threads thoroughly and apply thread locker.

Brakes Rotors

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the rotor/drum to the wheel hub during installation. They are not intended to withstand high braking loads. Do not over-tighten.

Brakes Master Cylinder

1

Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the master cylinder to the brake booster or firewall. Estimated torque value. Ensure all bolts are tightened evenly to prevent damage.
2

Brake Line Fitting at Master Cylinder

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures brake lines to the master cylinder. Estimated torque value. Use a flare nut wrench to avoid rounding the fittings.

Brakes Booster

1

Brake Booster Mounting Bolts/Nuts to Firewall

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the brake booster to the firewall. Estimated torque value. Ensure all bolts are tightened evenly to prevent damage.

Brakes Lines And Fittings

1

Brake Line Fitting (at Caliper, Master Cylinder, Proportioning Valve)

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a flare nut wrench to avoid rounding. Estimated torque value. Ensure proper alignment before tightening.
2

Brake Hose to Hardline Fitting

M10 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure proper alignment and use of flare nut wrench. Estimated torque value.

Brakes Proportioning Valve

1

Proportioning Valve Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the proportioning valve to the chassis. Estimated torque value.
2

Brake Line Fitting at Proportioning Valve

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures brake lines to the proportioning valve. Estimated torque value. Use a flare nut wrench to avoid rounding the fittings.

Drivetrain

Torque specifications for Drivetrain

Drivetrain Flywheel Clutch

1

Flywheel Bolts

M10 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Tighten in a star pattern in stages to achieve final torque.
2

Pressure Plate Bolts

M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Tighten in a star pattern in stages to achieve final torque. Estimated values.
3

Clutch Slave Cylinder Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment of the slave cylinder before tightening the bolts.

Drivetrain 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 to the engine before tightening the bolts.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Tighten in a crisscross pattern to achieve an even seal. Do not overtighten.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use new sealing washers if necessary. Do not overtighten.
4

Transmission Bell Housing Bolts

M12 x 1.75
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alignment of the bell housing to the engine block and transmission.
5

Shift Linkage Bolts

M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Torque in stages to avoid binding or misalignment, Estimated values.
6

Input Shaft Bearing Retainer Bolts

M8 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m) 2. 20 ft-lbs (27 N·m)
Important Notes
Tighten in a crisscross pattern in stages to ensure proper seating. Estimated values.

Drivetrain Axles Driveshaft

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure proper alignment of the axle to the transmission or differential before tightening bolts.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Use a new nut and ensure proper installation.
3

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure proper alignment of the driveshaft before tightening the bolts.

Drivetrain Differential Transfer

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer if necessary. Do not overtighten.
2

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer if necessary. Do not overtighten.
3

Differential Mounting Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure proper alignment of the differential to the frame or subframe before tightening the bolts.

Electrical

Torque specifications for Electrical

3.0l Engine Cylinder Head

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper coil grounding. Over-tightening can damage coil or mounting point.
2

Spark Plug

M14 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure proper spark plug sealing and heat transfer. Do not over-tighten.

3.0l Engine Block

1

Starter Motor Mounting Bolt

M10 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper starter engagement and grounding. Over or under torquing may lead to misalignment, poor ground, or starter malfunction
2

Alternator Mounting Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alternator alignment and grounding. Over or under-tightening can lead to misalignment, belt slippage and unreliable charging.
3

Engine Ground Strap Bolt (Engine Side)

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure a good electrical connection. Proper grounding is critical for electrical system performance.

Chassis

1

Battery Terminal Nut

M6 x 1.0
Torque Specification
5.8 ft-lbs (7.9 N·m)
Important Notes
Ensure solid, low-resistance electrical connection. Do not over-tighten, terminals can crush.
2

Engine Ground Strap Bolt (Body Side)

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure a good electrical connection. Proper grounding is critical for electrical system performance.
3

Body Ground Point Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure a good electrical connection. Torque based on bolt size. If M8, use 12 ft-lbs.
4

Fuse Box Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure fuse box is mounted securely to the body and grounding is secure.
5

Headlight Housing Mounting Bolt

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the headlight housing is securely mounted. Do not over tighten to avoid cracking plastic
6

Tail light Housing Mounting Bolt

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the taillight housing is securely mounted. Do not over tighten to avoid cracking plastic
7

Horn Mounting Bolt

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure a good ground connection for the horn.

Electrical Components

1

Electronic Control Unit (ECU) Mounting Bolt

M5 x 0.8
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure secure mounting and grounding for the ECU. Do not over-tighten as this may damage the ECU.
2

Sensor Mounting Bolt (Crank, Cam, MAP, etc.)

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure sensor is mounted securely, with good ground contact. Do not over tighten as this can damage sensor body. Torque range is 7-12 ft-lbs.

Emissions Sensors

Torque specifications for Emissions_sensors

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the EGR valve is properly aligned before tightening. Torque in a crisscross pattern.

Exhaust Manifold System

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.

Exhaust Pipe System

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.

Intake System

1

Throttle Body Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.

Emissions Sensors

1

Oxygen Sensor (O2 Sensor) Mounting Nut

M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the oxygen sensor is properly aligned before tightening.
2

Catalytic Converter Heat Shield Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a crisscross pattern starting from the center bolts.
3

Exhaust Gas Temperature Sensor Bolt

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the exhaust gas temperature sensor is properly aligned before tightening.
4

PCV Valve Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the PCV valve is properly aligned before tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure even tightening. Use new gaskets when installing.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment and use new gasket.

Exhaust System

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new gasket. Check flange for damage.
2

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper fitment of all exhaust components.
3

Exhaust Flange Spring Bolts/Nuts

M8 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
This is an estimated value, torque to manufacturers compressed height if specified.
4

Exhaust Band Clamps

varies per clamp
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
This is an estimated value. Torque to manufacturer’s specification.
5

Exhaust Hanger Bolts/Nuts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
This is an estimated value, torque to manufacturers specification. Ensure proper alignment of exhaust before tightening.

Exhaust Sensors

1

Oxygen Sensor

M18 x 1.5
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
This is an estimated value. Always ensure the threads are clean and undamaged. Do not overtighten.

Fuel

Torque specifications for Fuel

3.0l Fuel Delivery

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures fuel rail to intake manifold. Ensure even torque to prevent leaks. Redundant spec 'Fuel Injector Rail Bolts' refers to the same component and torque.
2

Fuel Injector Mounting Bolts/Studs

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures fuel injectors into fuel rail or intake manifold. Do not overtighten; it may damage injector housing.
3

Fuel Line Fittings at Fuel Rail/Injectors

Varies; likely M12 x 1.25 or M14 x 1.5 for banjo bolts, with specific size determined by fuel line type
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated torque for fuel line fittings. Consult the service manual for the exact fitting type and recommended torque. Ensure use of new sealing washers. Do not overtighten, which may cause damage to fittings or fuel lines.
4

Fuel Pressure Regulator Mounting Bolts/Screws

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque. Typically small bolts or screws holding the regulator. Do not overtighten as this may damage the regulator or cause vacuum leaks.

3.0l Fuel Tank And Pump

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Securely mounts the fuel pump to the fuel tank. Ensure correct torque to prevent vibrations and leaks.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Secures fuel tank straps. Crucial for fuel tank safety and stability. Use new fasteners if needed.
3

Fuel Pump Sending Unit Lock Ring

N/A
Torque Specification
1. 25 ft-lbs (34 N·m)
Important Notes
Hand tighten and proceed with specified torque value. Torque spec can vary, use hand tight as minimum. Refer to service manual for specific torque. Secures fuel pump module in the tank. Do not overtighten, which may damage the lock ring.

3.0l Fuel Lines And Filter

1

Fuel Filter Bolt/Nut

M8 x 1.25 or varies depending on the clamp type
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures fuel filter bracket to chassis or fuel line connections. Ensure proper sealing of fuel filter fittings.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures fuel filler neck to the body and fuel tank. Ensure proper sealing to prevent vapor leaks.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the A/C compressor to the engine block or mounting bracket. Ensure proper alignment before tightening.
2

A/C Line Fittings

Varies based on fitting size and thread (estimated M16x1.5)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Connects A/C lines to various components. Torque spec applies to most fittings but may vary. Check the service manual. Estimated bolt size

Ac Condenser

1

A/C Condenser Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Mounts the condenser to the vehicle's frame. Estimated bolt size.

Ac Evaporator

1

A/C Evaporator Core Mounting Screws

M4 x 0.7
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Mounts the evaporator core within the HVAC box. Estimated bolt size.

Hvac Blower

1

HVAC Blower Motor Mounting Screws

M4 x 0.7
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the blower motor to the HVAC box. Estimated bolt size.

Hvac Controls

1

HVAC Control Panel Mounting Screws

M4 x 0.7
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the HVAC control panel to the dashboard. Estimated bolt size.

Ac Receiver Drier

1

A/C Receiver Drier Mounting Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the receiver drier mounting bracket to the vehicle chassis. Estimated bolt size.

Suspension

Torque specifications for Suspension

Front Suspension Struts

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Applies to both upper and lower strut mounting points. Ensure bolts are correctly aligned before tightening.
2

Lower Strut Fork Bolt to Lower Control Arm Bolt

M12 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Secures the lower end of the strut fork to the control arm. Ensure proper alignment before tightening.
3

Strut Piston Rod Nut

M14 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the strut piston rod to the upper mount. Do not overtighten. Verify that the strut mount is securely installed.
4

Upper Strut Mount Bolts to Body

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Attaches the strut mount to the vehicle chassis. Tighten evenly to prevent misalignment.

Front Suspension Control Arms

1

Control Arm Bolts

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Applies to all control arm mounting bolts. Ensure proper alignment of the control arm before tightening.
2

Ball Joint Nut

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the ball joint to the knuckle or control arm. Ensure proper ball joint seating before tightening.

Steering System

1

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. Ensure proper tie rod alignment.

Sway Bar System

1

Sway Bar Link Nut

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Connects the sway bar end links to the sway bar and suspension components. Ensure even tightening on both sides.
2

Sway Bar Mounting Bracket Bolts

M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Secures the sway bar to the chassis. Ensure proper alignment of the brackets.

Wheel Hub

1

Wheel Hub/Bearing Bolts

M12 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Secures the wheel hub/bearing assembly to the steering knuckle. Tighten in a star pattern to ensure even pressure.

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 cylinder head bolts?

Refer to the Acura CL service manual for specific values as they may vary depending on the engine type and year of manufacture.

Q2

What IS the recommended torque for the lug nuts?

Tighten the lug nuts to 80 ft-lbs (108 Nm) in a star pattern, using a properly calibrated torque wrench.

Q3

What type of thread locker should be used on the oil pan bolts?

Use a medium-strength thread locker, such as Loctite 243, on the oil pan bolts to prevent loosening.

Q4

How can I ensure proper torque application with a torque wrench?

Ensure the torque wrench IS properly calibrated and set to the correct torque value. Clean the bolt threads and apply a small amount of oil before tightening. Always pull the torque wrench perpendicular to the bolt.

Q5

What are the torque specifications for the intake manifold bolts?

Tighten the intake manifold bolts to 10 ft-lbs (14 Nm) in a crisscross pattern.

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 Cl.

  • 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

Engine Cylinder Head Bolt Tightening Sequence

Step-by-step instructions for tightening cylinder head bolts to specified torque values, ensuring proper sealing and preventing engine damage.

  • Remove the valve cover and camshafts.
  • Clean the cylinder head and block mating surfaces.
  • Apply a thin layer of engine oil to the bolt threads.
  • Tighten the bolts in the specified sequence and torque values (typically 80-100 Nm).
  • Reinstall the camshafts and valve cover.
View full procedure

Brake Caliper Mounting Bolts

Procedure for tightening brake caliper mounting bolts to ensure proper brake function and prevent caliper movement.

  • Raise the vehicle and remove the wheel.
  • Locate the brake caliper mounting bolts.
  • Clean the bolts and threads.
  • Apply a small amount of anti-seize compound to the threads.
  • Tighten the bolts to the specified torque (typically 100-120 Nm).
  • Reinstall the wheel and lower the vehicle.
View full procedure

Suspension Control Arm Bolts

Instructions for tightening suspension control arm bolts to maintain proper wheel alignment and handling.

  • Raise the vehicle and support it on jack stands.
  • Locate the control arm bolts.
  • Clean the bolts and threads.
  • Apply a small amount of anti-seize compound to the threads.
  • Tighten the bolts to the specified torque (typically 60-80 Nm).
  • Lower the vehicle and torque the bolts again to the final specification (typically 100-120 Nm).
View full procedure
Technical Service Bulletins

TSB: Intake Manifold Bolt Torque Specification

2000-02-15

Technical bulletin issued by Acura to address incorrect torque specifications provided in the service manual for the intake manifold bolts.

1997-1999 Cl

Resolution: The correct torque specification for the intake manifold bolts IS 18 ft-lb (24 Nm).

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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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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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