Briggs and Stratton Head Bolt Torque Sequence
Briggs and Stratton engines are renowned for their reliability and performance. These engines are commonly used in various applications, including lawnmowers, generators, and small vehicles. One crucial aspect of maintaining a Briggs and Stratton engine is ensuring the proper torque sequence for the head bolts. This article will guide you through the head bolt torque sequence for Briggs and Stratton engines, ensuring that you can maintain your engine’s performance and longevity.
Head Bolt Torque Sequence
To properly torque the head bolts on a Briggs and Stratton engine, it is essential to follow a specific sequence. This sequence ensures that the head bolts are tightened evenly, preventing any warping or damage to the engine block. Below is the recommended torque sequence for Briggs and Stratton engines:
| Step | Torque (ft. lbs.) | Torque (Nm) |
|---|---|---|
| Step 1 | 7-9 | 9.5-12.2 |
| Step 2 | 18-20 | 24.4-27.1 |
| Step 3 | 28-30 | 38-41 |
Procedure
Follow these steps to torque the head bolts on your Briggs and Stratton engine correctly:
1. Start by cleaning the threads of the head bolts and the corresponding holes in the engine block. Ensure that there is no debris or oil present, as this can affect the torque readings.
2. Begin with Step 1 of the torque sequence. Using a torque wrench, tighten the head bolts to the specified torque range of 7-9 ft. lbs. (9.5-12.2 Nm). Make sure to tighten them evenly, following the recommended sequence.
3. Move on to Step 2 of the torque sequence. Again, using a torque wrench, tighten the head bolts to the specified torque range of 18-20 ft. lbs. (24.4-27.1 Nm). Maintain the proper sequence and ensure even tightening.
4. Finally, proceed to Step 3 of the torque sequence. Use a torque wrench to tighten the head bolts to the specified torque range of 28-30 ft. lbs. (38-41 Nm). Follow the sequence and tighten evenly.
Final Steps
After torquing the head bolts, it is essential to recheck the torque after a short period of engine operation. This step ensures that the bolts have settled into place and are still properly tightened. Use the torque wrench to check the torque on each head bolt, following the sequence once again.
By following the recommended head bolt torque sequence for Briggs and Stratton engines, you can maintain the integrity of your engine and prevent any potential issues. Remember to always refer to the specific torque specifications provided by Briggs and Stratton for your particular engine model.
Keeping your Briggs and Stratton engine in top condition is crucial for its performance and longevity. By understanding and following the correct head bolt torque sequence, you can ensure that your engine operates smoothly and reliably for years to come.