Mitsubishi Vehicle Models Mitsubishi Montero 1991-1999 Torque Specifications
Mitsubishi Vehicle Models Mitsubishi Montero 1991-1999

Mitsubishi Vehicle Models Mitsubishi Montero 1991-1999 Torque Specifications

Complete Mitsubishi Vehicle Models Mitsubishi Montero 1991-1999 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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

3.0l Engine

Torque specifications for 3.0L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

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

Main Bearing Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
2

Flywheel Bolts

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

Valvetrain and Timing System

1

Valve Cover Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
2

Timing Belt/Chain Tensioner Bolt

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

Engine Accessories

1

Water Pump Bolts

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
14 ft-lbs (19 N·m)

Engine Mounting and Exhaust System

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on similar components.
2

Exhaust Manifold/Headers Bolts

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

Fuel System

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2

Fuel Injector Hold-Down Bolts

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
13 ft-lbs (18 N·m)

3.0l V6 Engine

Torque specifications for 3.0L-V6 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

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

Main Bearing Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
2

Flywheel Bolts

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

Valvetrain and Timing System

1

Valve Cover Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
2

Timing Belt/Chain Tensioner Bolt

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

Engine Accessories

1

Water Pump Bolts

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
2

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
14 ft-lbs (19 N·m)

Engine Mounting and Exhaust System

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on similar components.
2

Exhaust Manifold/Headers Bolts

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

Fuel System

1

Fuel Rail Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2

Fuel Injector Hold-Down Bolts

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
13 ft-lbs (18 N·m)

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.
2

Main Bearing Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
2

Flywheel Bolts

M12 x 1.5
Torque Specification
62 ft-lbs (84 N·m)

Valvetrain and Timing System

1

Valve Cover Bolts

M8 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
2

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)

Engine Accessories

1

Oil Pan Bolts

M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)
2

Water Pump Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)

Engine Mounting and Transmission

1

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.
2

Engine Mounting Bolts

M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.

3.5l V6 Engine

Torque specifications for 3.5L-V6 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.
2

Main Bearing Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
2

Flywheel Bolts

M12 x 1.5
Torque Specification
62 ft-lbs (84 N·m)

Valvetrain and Timing System

1

Valve Cover Bolts

M8 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
2

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)

Engine Accessories

1

Oil Pan Bolts

M8 x 1.25
Torque Specification
6 ft-lbs (8 N·m)
2

Water Pump Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)

Engine Mounting and Transmission

1

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.
2

Engine Mounting Bolts

M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, actual value may vary depending on engine variant.

Body

Torque specifications for Body

Body Panels

1

Fender Mounting Bolts

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensure even tightening in a crisscross pattern to avoid panel misalignment.
2

Bumper Mounting Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated value based on similar components. Ensure bumper alignment before tightening.

Doors

1

Door Hinge Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper door alignment before final tightening.

Seats

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Critical for passenger safety. Ensure bolts are tightened securely.

Roof Rack

1

Roof Rack Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure even tightening to avoid roof panel damage.

Interior Trim

1

Interior Trim Panel Screws

M6 x 1.0
Torque Specification
3 ft-lbs (4 N·m)
Important Notes
Use a low torque setting to avoid damaging plastic trim.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure caliper is properly aligned before tightening. Torque values are critical to prevent caliper movement.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
Important Notes
These bolts secure the caliper bracket to the steering knuckle or axle. Ensure proper alignment before tightening.

Brake Rotor Drum

1

Brake Disc/Drum Retaining Bolts

M10 x 1.25
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Ensure the rotor or drum is seated properly on the hub before tightening.

Brake Hydraulics

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure the sealing washers are in good condition and properly seated. Torque values are critical to prevent leaks.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the master cylinder is properly aligned with the brake booster or firewall before tightening.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the brake booster is properly aligned with the firewall before tightening.

Brake Pedal

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the brake pedal is properly aligned with the master cylinder pushrod before tightening.

Wheel Assembly

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Ensure the wheel is properly seated on the hub before tightening. Torque values are critical to prevent rotor warping or wheel detachment.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Mounting

1

Engine Block to Transmission Bellhousing Bolts

M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on general industry standards.
2

Transmission Crossmember Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission and Transfer Case

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
39 ft-lbs (53 N·m)
2

Transfer Case to Transmission Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on general industry standards.

Differential and Axle

1

Differential Cover Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on general industry standards.
2

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
3

Drive Axle/Half Shaft Nut

M20 x 1.5
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Estimated value based on general industry standards.

Flywheel and Crankshaft

1

Flywheel Bolts

M12 x 1.5
Torque Specification
61 ft-lbs (83 N·m)

CV Joint and Axle Shaft

1

CV Joint/Axle Nut

M20 x 1.5
Torque Specification
181 ft-lbs (245 N·m)

Propeller/Drive Shaft

1

Propeller/Drive Shaft Bolts

M12 x 1.5
Torque Specification
50 ft-lbs (68 N·m)

Differential and Transfer Case Fluid Service

1

Differential Drain/Fill Plug

M14 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
2

Transfer Case Drain/Fill Plug

M14 x 1.5
Torque Specification
32 ft-lbs (43 N·m)

Transmission Oil Pan

1

Transmission Oil Pan Bolts

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

Transmission Drain and Fill Plugs

1

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
32 ft-lbs (43 N·m)

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Bolt

M8 x 1.25
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Estimated average torque value.
2

Spark Plug Wire Retainer Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated torque value based on similar components.
3

Ignition Module Mounting Bolts

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.
4

Distributor Cap and Rotor Mounting Bolts (if equipped)

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.

Starting System

1

Starter Motor Mounting Bolts

M12 x 1.75
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated average torque value.

Charging System

1

Alternator Mounting Bolts

M12 x 1.75
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Estimated average torque value.

Battery and Electrical System

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
N/A
Important Notes
Hand-tight only.
2

Fuel Injector Electrical Connector Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated torque value based on similar components.

Emissions Sensors

Torque specifications for Emissions_sensors

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
16.5 ft-lbs (22.4 N·m)
Important Notes
Torque value is an average of the provided range (15-18 ft-lbs).

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
32.5 ft-lbs (44.1 N·m)
Important Notes
Torque value is an average of the provided range (29-36 ft-lbs). Follow the manufacturer's torque sequence.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Torque value is an average of the provided range (17-23 ft-lbs). Follow the manufacturer's torque sequence.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Torque value is an average of the provided range (14-18 ft-lbs).

Oxygen Sensor

1

Oxygen (O2) Sensor

M18 x 1.5
Torque Specification
35 ft-lbs (47.5 N·m)
Important Notes
Torque value is an estimated average based on similar components. Ensure the sensor is properly aligned before tightening.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
32.5 ft-lbs (44.1 N·m)
Important Notes
Torque value is an average of the provided range (29-36 ft-lbs).
2

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (21.7 N·m)
Important Notes
Torque value is an average of the provided range (14-18 ft-lbs).

Throttle Body

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16.3 N·m)
Important Notes
Torque value is an average of the provided range (10-14 ft-lbs).

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Engine Block Bolts

M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated average torque value from the provided range.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated average torque value from the provided range.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated average torque value from the provided range.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated average torque value from the provided range.
3

Muffler to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated average torque value from the provided range.

Oxygen Sensor

1

Oxygen Sensor Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (24 N·m)
Important Notes
Estimated average torque value from the provided range.

Exhaust System Mounting

1

Exhaust System Mounting Bolts

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated average torque value from the provided range.

Heat Shield

1

Heat Shield Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated average torque value from the provided range.

Exhaust System Clamp

1

Exhaust System Clamp Bolts

M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated average torque value from the provided range.

Fuel

Torque specifications for Fuel

Intake Manifold and Throttle Body

1

Throttle Body Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.
2

Intake Manifold Bolts

M10 x 1.5
Torque Specification
17 ft-lbs (23 N·m)

Fuel Rail and Injectors

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)

Fuel Pump and Tank

1

Fuel Pump Mounting Bolts

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

Fuel Tank Strap Bolts

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)

Fuel Filler Neck and Filter

1

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
2

Fuel Filter Bolt/Nut

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)

Fuel Pressure Regulator and Injector O Ring Retainer

1

Fuel Pressure Regulator Mounting Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on similar components.
2

Fuel Injector O-Ring Retainer Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque value based on similar components.

Fuel Pump Electrical Connector

1

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated torque value based on similar components.

Hvac

Torque specifications for Hvac

A/C Compressor

1

A/C Compressor Mounting Bolts

M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Estimated average of 24-30 ft-lbs (33-41 N·m) range.
2

A/C Compressor Clutch Bolt

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated average of 20-25 ft-lbs (27-34 N·m) range.

A/C Condenser

1

A/C Condenser Mounting Bolts

M10 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated average of 15-20 ft-lbs (20-27 N·m) range.

A/C Evaporator

1

A/C Evaporator Mounting Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated average of 10-15 ft-lbs (14-20 N·m) range.

A/C Lines and Fittings

1

A/C Line Fittings

M12 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated average of 14-18 ft-lbs (19-24 N·m) range.
2

A/C Line Bracket Mounting Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated average of 10-15 ft-lbs (14-20 N·m) range.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
49 ft-lbs (67 N·m)
Important Notes
Estimated average torque value from the given range.
2

Control Arm Bolts

M16 x 1.5
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Estimated average torque value from the given range.
3

Upper Control Arm Bushing Bolts

M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on general industry standards.
4

Lower Control Arm Bolts

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

Steering Components

1

Steering Gear/Rack Bolts

M16 x 1.5
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Estimated average torque value from the given range.
2

Tie Rod End Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated average torque value from the given range.

Suspension Stabilizers

1

Sway Bar Link Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated average torque value from the given range.
2

Stabilizer Bar Mounting Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
Estimated torque value based on general industry standards.

Coil Springs

1

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
Estimated torque value based on general industry standards.

V5a Transmission

Torque specifications for V5a Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Torque value range: 36-43 ft-lbs (49-59 N·m)

Transmission Oil System

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Torque value range: 5-7 ft-lbs (7-10 N·m)
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Torque value range: 29-36 ft-lbs (39-49 N·m)

Transmission Case and Bellhousing

1

Transmission Case Bolts

M16 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)
2

Transmission Bellhousing Bolts

M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated torque value range: 30-40 ft-lbs (41-54 N·m)

Transmission Crossmember and Pan Gasket

1

Transmission Crossmember Bolts

M16 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated torque value range: 40-50 ft-lbs (54-68 N·m)
2

V5A Transmission Pan Gasket Bolts

M10 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated torque value range: 10-15 ft-lbs (14-20 N·m)

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 correct torque specification for the wheel lug nuts on a 1991-1999 MITSUBISHI Montero?

118 ft-lbs (160 Nm), using a calibrated torque wrench.

Q2

How do I properly tighten bolts to the specified torque values?

Apply a penetrating lubricant to the threads, hand-tighten the bolt, then use a torque wrench to tighten it to the specified value in two equal steps.

Q3

What are the potential consequences of over-tightening or under-tightening bolts?

Over-tightening can cause thread stripping, bolt breakage, or component damage. Under-tightening can lead to loose components, vibration, and potential failure.

Q4

What type of torque wrench should I use for this vehicle?

Use a high-quality, calibrated click-type or dial-type torque wrench designed for automotive use.

Q5

How often should I check and re-torque the vehicle's bolts?

Check and re-torque all critical bolts according to the manufacturer's recommended maintenance schedule, or as deemed necessary by a qualified mechanic.

Q6

What are the special considerations for torque specifications on suspension components?

Suspension components, such as control arms and ball joints, require strict adherence to torque specifications to ensure proper alignment, handling, and safety. Refer to the vehicle's service manual for specific torque values.

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 Montero.

  • 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

Cylinder Head Bolt Torque Sequence

Proper tightening sequence and torque specifications for the cylinder head bolts on the Montero.

  • Thoroughly clean the cylinder head and block surfaces.
  • Apply a thin layer of engine oil to the threads of the cylinder head bolts.
  • Install the cylinder head bolts and tighten them to the following torque specifications in the specified sequence:
  • - Step 1: 30 Nm (22 ft-lb)
  • - Step 2: 60 Nm (44 ft-lb)
  • - Step 3: 90 degrees
  • - Step 4: 90 degrees
View full procedure

Intake and Exhaust Manifold Bolt Torque Specifications

Torque specifications for the intake and exhaust manifold bolts on the Montero.

  • Clean the manifold and cylinder head surfaces.
  • Install new gaskets on the manifolds.
  • Tighten the intake manifold bolts to 25 Nm (18 ft-lb).
  • Tighten the exhaust manifold bolts to 30 Nm (22 ft-lb).
View full procedure

Spark Plug Torque Specifications

Torque specifications for the spark plugs on the Montero.

  • Clean the spark plug threads and apply anti-seize compound.
  • Tighten the spark plugs to 25 Nm (18 ft-lb).
View full procedure
Technical Service Bulletins

Cylinder Head Bolt Torque Specification Update

2005-03-15

Updates the torque specifications for the cylinder head bolts on the Montero to improve engine durability.

1991-1999 Montero

Resolution: Follow the revised torque specifications outlined in the bulletin.

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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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