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Home » Head Bolt Torque Specs for 24v 5.9 Cummins Engine

Head Bolt Torque Specs for 24v 5.9 Cummins Engine

About the 24v 5.9 Cummins Engine

The 24v 5.9 Cummins engine is a popular choice among truck enthusiasts and diesel engine enthusiasts alike. Known for its durability and power, this engine has been a staple in the automotive industry for many years. With its inline-six configuration and 24 valves, the 5.9 Cummins engine delivers impressive performance and reliability.

Head Bolt Torque Specifications

When it comes to working on the 24v 5.9 Cummins engine, it is essential to follow the correct torque specifications for the head bolts. Proper torque ensures that the head bolts are tightened to the manufacturer’s recommended specifications, preventing any potential issues such as leaks or engine damage. Below, you will find the head bolt torque specifications for the 24v 5.9 Cummins engine:

Head Bolt Torque Specification (ft. lbs.) Torque Specification (Nm)
1-10 100 136
11-20 50 68
21-24 100 136

Steps to Torque the Head Bolts

To properly torque the head bolts on a 24v 5.9 Cummins engine, follow these steps:

1. Start by cleaning the threads of the head bolts and the bolt holes in the engine block to ensure proper engagement and accurate torque readings.
2. Apply a small amount of engine oil or assembly lubricant to the threads of each head bolt.
3. Begin by torquing all head bolts to 50 ft. lbs. (68 Nm) in a crisscross pattern, starting from the center and working your way outwards.
4. Once all head bolts have been torqued to 50 ft. lbs. (68 Nm), repeat the process and torque them to the final specification of 100 ft. lbs. (136 Nm) in the same crisscross pattern.
5. Double-check all head bolts to ensure they are tightened to the correct torque specification.
6. Finally, recheck the torque on all head bolts after the engine has reached operating temperature to account for any thermal expansion.

Following these steps and using the specified torque values will help ensure that the head bolts on your 24v 5.9 Cummins engine are properly tightened, promoting a secure seal and optimal engine performance.

Remember, it is crucial to consult the manufacturer’s service manual or seek professional advice if you have any doubts or questions regarding the torque specifications or the proper procedure for torquing the head bolts on your specific engine model.

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