Dodge Caliber 2007-2012 1.8L Engine Bolt Torque Specifications & Fastener Values
Dodge Caliber 2007-2012

Dodge Caliber 2007-2012 1.8L Engine Bolt Torque Specifications

Comprehensive list of torque specifications for various bolts on the 1.8L engine in the 2007-2012 Dodge Caliber. Includes cylinder head, intake manifold, exhaust manifold, and more.

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

Cylinder Head

Torque specifications for fasteners related to the cylinder head assembly. Proper torque is critical for maintaining compression and preventing leaks.

1

Cylinder Head Bolts

M10 x 1.5
Important Notes
Cylinder head bolts require a multi-step torque procedure, including initial torque and two angular tightening steps. Refer to the specific service manual for the correct tightening sequence.
2

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensures proper camshaft alignment and prevents damage. Estimated value; verify with the specific service manual.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Value
21 ft-lbs (28 N·m)
Important Notes
Secures the rocker arm assembly to the cylinder head. These are crucial for proper valve actuation.
4

Valve Cover Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Secures the valve cover to the cylinder head, preventing oil leaks. Over-torquing can damage the valve cover.
5

Ignition Coil Bolt

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the ignition coils to the valve cover. These bolts must be snug to ensure proper electrical connection.

Engine Block

Torque specifications for fasteners related to the engine block, which form the foundation of the engine.

1

Main Bearing Bolts

M12 x 1.75
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Secures the main bearing caps to the engine block. Correct torque is essential for proper crankshaft alignment and bearing function.
2

Connecting Rod Nuts

M9 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the connecting rod to the crankshaft journal. Proper torque is vital for proper rod bearing function and preventing rod failure.
3

Oil Pan Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the oil pan to the bottom of the engine block. Over-torquing can crush the oil pan gasket.
4

Oil Drain Plug Bolt

M14 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the oil drain plug to the oil pan. Use a new washer when installing.
5

Crankshaft Position Sensor (CKP) Bolt

M6 x 1.0
Torque Value
7 ft-lbs (9 N·m)
Important Notes
Secures the CKP sensor to the engine block or cylinder head. Estimated value, verify with the specific service manual.
6

Water Pump Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the water pump to the engine block. Prevents coolant leaks.

Rotating Assembly

Torque specifications for fasteners associated with the rotating components of the engine, ensuring proper balance and function.

1

Flywheel Bolts

M10 x 1.5
Torque Value
65 ft-lbs (88 N·m)
Important Notes
Attaches the flywheel (manual trans.) or flexplate (automatic trans.) to the crankshaft. Apply thread locker to the bolts.
2

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Value
105 ft-lbs (142 N·m)
Important Notes
Secures the crankshaft pulley and harmonic balancer to the crankshaft. This bolt is critical for driving the accessory drive belt and maintaining engine balance.

Timing System

Torque specifications for fasteners related to the engine's timing system, crucial for correct valve timing and engine operation.

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Secures the timing belt/chain tensioner. Proper torque is critical for maintaining correct valve timing.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Secures the camshaft sprockets to the camshafts. This is important for maintaining precise valve timing.

Intake System

Torque specifications for fasteners related to the intake system, ensuring a leak-free connection for optimal engine performance.

1

Throttle Body Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Attaches the throttle body to the intake manifold. This connection must be airtight to prevent vacuum leaks.
2

Intake Manifold Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the intake manifold to the cylinder head. A proper seal is necessary to maintain the correct air/fuel mixture and to prevent vacuum leaks.
3

EGR Valve Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the EGR valve to the intake manifold/cylinder head. Prevents exhaust gas leaks from the system.

Exhaust System

Torque specifications for fasteners related to the exhaust system, ensuring a leak-free connection to manage exhaust gases effectively.

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Value
26 ft-lbs (35 N·m)
Important Notes
Secures the exhaust manifold to the cylinder head. A proper torque is vital to prevent exhaust leaks.

Fuel System

Torque specifications for fasteners related to the fuel system, ensuring a leak-proof and secure fuel delivery.

1

Fuel Rail Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the fuel rail to the intake manifold. This is vital for preventing fuel leaks and maintaining the correct fuel pressure.
2

Fuel Injector Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the fuel injectors to the fuel rail. Prevents fuel leaks and maintains correct fuel injection.

Cooling System

Torque specifications for fasteners related to the cooling system, essential for preventing leaks and ensuring proper temperature regulation.

1

Water Pump Pulley Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the water pump pulley to the water pump. This is important for proper drive belt function and water pump operation.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Secures the thermostat housing to the cylinder head/engine block. Prevents coolant leaks and ensures correct temperature regulation.

Misc

Torque specifications for fasteners not fitting into other sub-systems

1

Spark Plugs

M14 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the spark plugs into the cylinder head. Proper torque ensures a good electrical and thermal contact and prevents leaks from the cylinder.
2

Oil Filter Housing Bolt

M20 x 1.5
Torque Value
0 ft-lbs (0 N·m)
Important Notes
Secures the oil filter housing. It should be hand-tight to avoid over tightening.

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

Why is it important to use the correct torque specifications?

Using the correct torque specification is crucial for proper component clamping force, preventing leaks, ensuring proper function, and avoiding damage. Overtightening can strip threads or warp parts, while undertightening can lead to loosening, leaks, and component failure. For instance, overtightening a cylinder head bolt can warp the head, causing compression leaks and major engine damage. Always use a calibrated torque wrench.

Q2

What type of lubricant should I use on bolts?

Generally, clean and dry threads are sufficient for most engine bolts unless specifically stated otherwise by the manufacturer. Some bolts, like those for the cylinder head, may require engine oil or a specific thread lubricant as per the manufacturer's guidelines. Always check the service manual for the specific requirements for your 1.8L Caliber engine. Applying the wrong lubricant can drastically alter the achieved torque.

Q3

Do I need to replace bolts after removing them?

Certain bolts, especially those subjected to high stress (like cylinder head bolts or connecting rod bolts) are designed to stretch during tightening and should be replaced with new ones each time they are removed. This is because they may have exceeded their yield strength after being torqued the first time. Reusing these bolts can lead to failures and serious engine damage. For the 1.8L Caliber, always consult the service manual for guidance on specific bolt replacement requirements.

Q4

How often should I check torque values?

For critical components such as cylinder head bolts, it's generally advisable to re-torque after a specified break-in period or after significant engine operation. Consult your vehicle's repair manual for recommended intervals. For example, after a head gasket replacement on your 1.8L Caliber, some manuals recommend re-torqueing the head bolts after 500-1000 miles or a few heat cycles.

Q5

What is a torque sequence and why is it important?

A torque sequence refers to the specific order in which bolts must be tightened. Following this sequence is essential for even clamping pressure. Skipping the prescribed order for the intake manifold, for instance, can cause warpage and leaks. Always refer to your vehicle’s repair manual for the specific sequence, and typically for 1.8L engine components it will be from the center outwards in a spiral 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

Torque Wrench (1/2" Drive)

A calibrated torque wrench is essential for applying accurate torque to bolts and fasteners.

  • Wide torque range suitable for engine components
  • Audible click mechanism to indicate target torque is reached
Learn more

Torque Wrench (3/8" Drive)

A smaller torque wrench is useful for smaller fasteners and tighter locations.

  • Suitable for lower torque applications
  • Smaller profile for better access
Learn more

Socket Set (Metric)

A complete set of metric sockets is needed to fit the various bolts and fasteners on the 1.8L engine.

  • Variety of socket sizes
  • Durable construction
Learn more

Socket Extensions

Extensions help reach fasteners in recessed areas.

  • Various lengths for different access points
  • Secure connection with sockets
Learn more

Universal Joint Adapter

Allows socket access to fasteners at angles.

  • Flexible angle adjustment
  • Durable construction
Learn more
Service Procedures

Cylinder Head Bolt Torque Procedure (1.8L)

Procedure for correctly tightening cylinder head bolts on the 1.8L engine to ensure proper sealing.

  • Clean all bolt threads and mating surfaces.
  • Apply clean engine oil to the bolt threads and under the bolt heads.
  • Install all cylinder head bolts by hand.
  • Using a 3/8" drive torque wrench, tighten the bolts to 22 ft-lbs in the specified sequence.
  • Using a 1/2" drive torque wrench, further tighten the bolts to 44 ft-lbs in the same sequence.
  • Loosen all bolts one at a time, 90 degrees. Retighten to 22 ft-lbs in the specified sequence. Then, turn an additional 90 degrees in the same sequence. Finally, turn 90 degrees again in the same sequence.
  • Verify all bolts are torqued to specification. Recheck after engine has reached operating temperature.
View full procedure

Intake Manifold Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the intake manifold bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Install all intake manifold bolts by hand.
  • Using a 3/8" drive torque wrench, tighten bolts to 10 ft-lbs in the specified sequence.
  • Verify all bolts are torqued to specification.
View full procedure

Exhaust Manifold Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the exhaust manifold bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Install all exhaust manifold bolts by hand.
  • Using a 3/8" drive torque wrench, tighten bolts to 18 ft-lbs in the specified sequence.
  • Verify all bolts are torqued to specification.
View full procedure

Connecting Rod Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the connecting rod bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Apply clean engine oil to the bolt threads and under the bolt heads.
  • Install all connecting rod bolts by hand.
  • Using a 3/8" drive torque wrench, tighten the bolts to 15 ft-lbs in the specified sequence.
  • Using a torque angle gauge, further tighten the bolts an additional 60 degrees in the same sequence.
  • Verify all bolts are torqued to specification.
View full procedure

Crankshaft Main Bearing Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the crankshaft main bearing bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Apply clean engine oil to the bolt threads and under the bolt heads.
  • Install all crankshaft main bearing bolts by hand.
  • Using a 1/2" drive torque wrench, tighten the bolts to 22 ft-lbs in the specified sequence.
  • Using a torque angle gauge, further tighten the bolts an additional 90 degrees in the same sequence.
  • Verify all bolts are torqued to specification.
View full procedure

Oil Pan Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the oil pan bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Install all oil pan bolts by hand.
  • Using a 3/8" drive torque wrench, tighten the bolts to 10 ft-lbs in the specified sequence.
  • Verify all bolts are torqued to specification.
View full procedure

Valve Cover Bolt Torque Procedure (1.8L)

Procedure for correctly tightening the valve cover bolts on the 1.8L engine.

  • Clean all bolt threads and mating surfaces.
  • Install all valve cover bolts by hand.
  • Using a 3/8" drive torque wrench, tighten bolts to 8 ft-lbs in the specified sequence.
  • Verify all bolts are torqued to specification.
View full procedure
Technical Service Bulletins

Cylinder Head Bolt Re-Torque Recommendation

2008-05-15

A revision to the cylinder head bolt torque procedure to ensure proper sealing and prevent leaks.

2007-2008 Dodge Caliber with 1.8L engine

Resolution: Follow the revised cylinder head bolt torque procedure outlined in service procedure section.

Connecting Rod Bolt Stretch Advisory

2010-02-20

Warning against reusing connecting rod bolts, as they are torque-to-yield and can fail.

2007-2012 Dodge Caliber with 1.8L engine

Resolution: Always use new connecting rod bolts and follow the correct torque and angle procedure.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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