1. Prepare your tools and materials.
- You will need a feeler gauge, a flathead screwdriver, a 7/16-inch wrench, and a 3/8-inch wrench.
2. Locate the valve covers.
- They are located on top of the engine, on either side of the intake manifold.
3. Remove the valve covers.
- Use the 7/16-inch wrench to loosen the nuts that hold the valve covers in place. Be careful not to drop any of the nuts into the engine.
4. Inspect the valvetrain.
- Look for any signs of wear or damage, such as pitting, scoring, or excessive play. If you see any problems, you may need to replace the affected parts before proceeding.
5. Start the engine and run at 1500 rpm until it reaches the correct operating temperature.
6. Loosen the adjusting screw on the rocker arm.
- The rocker arms are located on top of the engine and control the opening and closing of the valves. Use a flathead screwdriver to loosen the adjusting screw on each rocker arm.
7. Insert the feeler gauge between the valve stem and the rocker arm.
- The feeler gauge should fit snugly between the two surfaces.
8. Adjust the adjusting screw until the feeler gauge is snug.
- Be careful not to overtighten the adjusting screw, as this could damage the valve or the rocker arm.
9. Repeat steps 6-8 for each valve.
10. Replace the valve covers.
- Be sure to replace the gaskets between the valve covers and the cylinder head. Tighten the nuts that hold the valve covers in place snugly.
11. Test the engine.
- Start the engine and listen for any unusual noises. If you hear any knocking or ticking sounds, you may need to adjust the valves again.
