Lisle 37530 GM Engine Timing Tool Set Instruction Manual

1. Product Overview

The Lisle 37530 Timing Tool Set is a specialized 4-piece kit designed to facilitate the servicing of timing chains on various General Motors (GM) engines. Its primary function is to ensure precise camshaft alignment during the removal and installation of timing chains, which is critical for correct engine operation.

This tool set is compatible with the following GM engine types:

• 2.8L, 2.9L, 3.0L, 3.5L, 3.6L, 3.7L, and 4.2L engines.

The set includes specific plates tailored for different engine configurations:

• Plates 1, 2, and 3: Designed for 2.8L, 3.0L, and 3.6L high-feature V6 engines.
• Plate 4: Applicable for 2004-2007 2.8L, 2007-2012 2.9L, 2004-2006 3.5L, 2007-2012 3.7L, and 2002-2008 4.2L in-line 4, 5, and 6 cylinder engines.

2. Package Contents

The Lisle 37530 Timing Tool Set includes the following components:

• One (1) 4-piece timing tool set, consisting of four distinct camshaft alignment plates.

Figure 1: This image displays the complete Lisle 37530 Timing Tool set, consisting of four distinct metal plates. Plates 1, 2, and 3 are clearly numbered, while the fourth plate is unnumbered but distinct in shape. These tools are designed to precisely align camshafts during engine service.

3. Setup and Operating Instructions

The Lisle 37530 Timing Tool Set is used to lock the camshafts in their correct timed position when performing timing chain service. This prevents camshaft rotation and ensures proper valve timing upon reassembly.

3.1 General Procedure

1. Ensure the engine is at Top Dead Center (TDC) on the compression stroke for cylinder 1, or as specified by the vehicle manufacturer's service manual.
2. Identify the correct timing plates for your specific GM engine type (refer to Section 1: Product Overview for plate applicability).
3. Carefully insert the designated timing plates into the camshafts. The plates are designed to fit precisely into machined slots or flats on the camshafts, locking them in position.
4. Once the plates are securely in place, the camshafts are aligned, and timing chain removal or installation can proceed according to the vehicle manufacturer's service procedures.
5. After timing chain service is complete and before engine reassembly, remove the timing plates.

3.2 V6 Engine Application (Plates 1, 2, 3)

For 2.8L, 3.0L, and 3.6L high-feature V6 engines, plates 1, 2, and 3 are utilized. These plates are typically inserted into the rear of the camshafts, often requiring the removal of valve covers or specific access plugs to engage the camshaft flats.

Figure 2: Here, Lisle Timing Tool plates 1, 2, and 3 are shown correctly installed on the camshafts of a GM V6 engine. These plates are crucial for maintaining camshaft alignment when performing timing chain service on 2.8L, 3.0L, and 3.6L high-feature V6 engines.

3.3 Inline 4, 5, and 6 Cylinder Engine Application (Plate 4)

Plate 4 is specifically designed for various inline 4, 5, and 6 cylinder GM engines, including 2.8L (2004-2007), 2.9L (2007-2012), 3.5L (2004-2006), 3.7L (2007-2012), and 4.2L (2002-2008) models. This plate ensures the camshafts are held in the correct position for these engine types.

Figure 3: This image illustrates Lisle Timing Tool plate 4 in position on the camshaft of a GM inline 4, 5, or 6 cylinder engine. This specific plate is used for camshaft alignment on 2.8L (2004-2007), 2.9L (2007-2012), 3.5L (2004-2006), 3.7L (2007-2012), and 4.2L (2002-2008) engines during timing chain procedures.

Important: Always consult the specific vehicle service manual for detailed timing chain service procedures, torque specifications, and additional required tools. This instruction manual provides general guidance for the use of the Lisle 37530 Timing Tool Set.

4. Maintenance

To ensure the longevity and proper function of your Lisle 37530 Timing Tool Set, follow these maintenance guidelines:

• Cleaning: After each use, clean the tools thoroughly to remove any oil, grease, or debris. Use a clean cloth and a suitable degreaser if necessary.
• Inspection: Regularly inspect the plates for any signs of damage, bending, or wear. Damaged tools should not be used as they may compromise camshaft alignment.
• Storage: Store the timing tool set in a dry, clean environment to prevent corrosion. Keeping the tools in their original packaging or a dedicated toolbox is recommended.

5. Troubleshooting

If you encounter difficulties during the timing chain service, consider the following:

• Tool Fitment: Ensure you are using the correct timing plate for your specific engine model and year. Refer to Section 1 for compatibility.
• Camshaft Position: Verify that the camshafts are in the correct position before attempting to insert the timing plates. Incorrect camshaft orientation will prevent the plates from seating properly.
• Obstructions: Check for any obstructions or debris that might prevent the plates from fully engaging the camshafts.
• Professional Assistance: If you are unsure about any step of the timing chain service or if issues persist, it is recommended to consult a qualified automotive technician or refer to the official GM service manual for your vehicle.

6. Specifications

7. Warranty and Support

For information regarding product warranty, technical support, or replacement parts, please refer to the official Lisle Corporation website or contact their customer service directly. Specific warranty terms may vary.

Lisle Corporation Contact Information:

• Website: www.lislecorp.com (Please note: This is a placeholder URL. Refer to product packaging or official documentation for the correct website.)