Revving Up Performance: Valve Adjustments

Revving Up Performance: Valve Adjustments

If you’re a newcomer to the world of automobile maintenance and repairs, you might be interested in learning about revving up performance with valve adjustments. Valve adjustments are a great way to improve the performance of your car and can make a huge difference in how it runs. In this article, we’ll discuss the basics of valve adjustments, what tools you’ll need, and how to make the adjustments yourself.

What Are Valve Adjustments?

Valve adjustments involve adjusting the gap between the valves and the valve seats in the engine. This gap is referred to as “clearance” and it is critical for proper operation of the engine. The clearance can be adjusted to increase or decrease the amount of air and fuel that can enter the combustion chamber. This adjustment can lead to improved performance, fuel economy, and engine longevity.

Tools Required for Valve Adjustments

Before you start, you’ll need to make sure you have the right tools for the job. You’ll need a valve lash adjuster, a feeler gauge, and a torque wrench. The valve lash adjuster is used to set the clearance between the valve and the seat. The feeler gauge is used to measure the clearance. The torque wrench is used to make sure the valve is properly tightened.

Step-by-Step Guide to Valve Adjustment

Once you have all the necessary tools, you’re ready to begin. The first step is to remove the valve cover and inspect the valves. Make sure they are all in the correct position. Once this is done, you can begin adjusting the valves.

Using the feeler gauge, measure the clearance between the valve and the seat. Make sure to measure both the intake and exhaust valves. You should adjust the clearance to the manufacturer’s specifications.

Once you have the clearance set, you can use the valve lash adjuster to make the adjustments. Make sure to turn the adjuster in the same direction for both valves. Turn the adjuster until it is snug and then back it off slightly to the desired clearance.

Finally, use the torque wrench to make sure the valves are properly tightened. Once this is done, you can replace the valve cover and start your engine.


Valve adjustments are an essential part of keeping your car running smoothly and can help improve its performance. With the right tools and a bit of knowledge, you can easily make the adjustments yourself. If you’re not sure what you’re doing, it’s best to consult a professional mechanic.

For more information on revving up performance with valve adjustments, check out this guide from Mechanic Base.