RAM Ram Dakota 1987-1996 Exhaust System Bolt Torque Specifications & Gasket Sealing
RAM Ram Dakota 1987-1996

RAM Ram Dakota 1987-1996 Exhaust System Bolt Torque Specifications

Detailed exhaust bolt torque specifications for the 1987-1996 Ram Dakota, including torque values and tightening sequences.

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

Exhaust Manifold

The exhaust manifold/headers collect exhaust gases from the engine cylinders and direct them into the exhaust system.

1

Exhaust Manifold/Headers to Engine Block Bolts

M12 x 1.5
Torque Value
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs (27-34 nm) range.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Value
16.5 ft-lbs (22.5 N·m)
Important Notes
Estimated average value from 15-18 ft-lbs (20-24 nm) range.

Exhaust Pipe

The exhaust pipe carries exhaust gases from the exhaust manifold/headers to the catalytic converter.

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Value
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs (27-34 nm) range.

Catalytic Converter

The catalytic converter reduces emissions by converting pollutants into harmless gases.

1

Catalytic Converter to Exhaust Pipe Bolts

M14 x 1.75
Torque Value
30 ft-lbs (40.5 N·m)
Important Notes
Estimated average value from 25-35 ft-lbs (34-47 nm) range.

Muffler

The muffler reduces the noise of the exhaust gases.

1

Muffler to Exhaust Pipe Bolts

M14 x 1.75
Torque Value
30 ft-lbs (40.5 N·m)
Important Notes
Estimated average value from 25-35 ft-lbs (34-47 nm) range.

Oxygen Sensor

The oxygen sensor monitors the oxygen levels in the exhaust gases.

1

Oxygen Sensor Bolts

M8 x 1.25
Torque Value
17.5 ft-lbs (23.5 N·m)
Important Notes
Estimated average value from 15-20 ft-lbs (20-27 nm) range.

Exhaust System Mounting

The exhaust system mounting secures the exhaust system components to the vehicle's frame or suspension.

1

Exhaust System Mounting Bolts

M12 x 1.5
Torque Value
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated average value from 20-25 ft-lbs (27-34 nm) range.

Heat Shield

The heat shield protects surrounding components from heat damage.

1

Heat Shield Bolts

M8 x 1.25
Torque Value
12.5 ft-lbs (17 N·m)
Important Notes
Estimated average value from 10-15 ft-lbs (14-20 nm) range.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the recommended torque specification for exhaust bolts on my 1987-1996 Ram Dakota?

The recommended torque specification for exhaust bolts on your 1987-1996 Ram Dakota is 20-25 ft-lbs for the exhaust manifold bolts and 30-35 ft-lbs for the exhaust pipe flange bolts. It's essential to consult your owner's manual or a repair manual for specific torque values, as they may vary depending on the engine type and exhaust system configuration.

Q2

Why is it important to follow the recommended torque specification for exhaust bolts?

Following the recommended torque specification for exhaust bolts is crucial to ensure a leak-free exhaust system and prevent damage to the engine and exhaust components. Over-torquing can damage the threads or strip the bolts, while under-torquing can lead to leaks and decreased performance.

Q3

How often should I inspect and maintain my exhaust system?

It's recommended to inspect your exhaust system every 12,000 to 15,000 miles or at least once a year. Look for signs of leaks, rust, or damage to the exhaust components. Regular maintenance, such as tightening loose bolts and replacing worn-out components, can help prevent costly repairs and ensure your vehicle runs efficiently.

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

Torque Wrench

A wrench that measures and applies a specific amount of torque.

  • Adjustable torque settings
  • Accurate torque measurement
Learn more

Socket Set

A set of sockets in various sizes for working with bolts and nuts.

  • Multiple socket sizes
  • Durable construction
Learn more

Exhaust System Socket

A socket specifically designed for working with exhaust system bolts.

  • Deep socket for reaching bolts
  • Heat-resistant coating
Learn more
Service Procedures

Exhaust Bolt Torque Specification

A procedure for applying the correct torque to exhaust bolts on a 1987-1996 Ram Dakota.

  • Locate the exhaust bolts and ensure they are clean and free of debris.
  • Apply a small amount of lubricant to the threads of the bolts.
  • Use a torque wrench to apply the specified torque (see table below).
  • Check the torque specification for the specific bolt being tightened.
View full procedure

Exhaust System Inspection

A procedure for inspecting the exhaust system on a 1987-1996 Ram Dakota.

  • Visually inspect the exhaust system for signs of damage or wear.
  • Check the exhaust bolts for proper torque.
  • Listen for unusual noises or leaks in the exhaust system.
View full procedure
Technical Service Bulletins

Exhaust Bolt Torque Specification Update

1994-02-15

An update to the exhaust bolt torque specification for 1987-1996 Ram Dakotas.

1987-1996 Ram Dakota

Resolution: Use the updated torque specification (see table below) when tightening exhaust bolts.

Exhaust System Leak Repair

1992-08-01

A procedure for repairing leaks in the exhaust system of a 1987-1996 Ram Dakota.

1987-1996 Ram Dakota

Resolution: Replace the leaking component and re-torque the exhaust bolts to the specified torque.

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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