After you have gapped the plugs (we gapped at 30) and installed them, slide the coilpacks back in, bolt down and reconnect the plug

Here's a tip, when reinstalling the airbox, make sure your thumb isn't in.

Need to know the correct spark plug gap setting for your audi fitted with the 4.2 v8 engine, then check out this useful video!

Use your spark plug socket and extension to unscrew the old spark plugs

Once loosened, pull them out

Before installing the new plugs, ensure they are correctly gapped.

Whether you're shopping for new plugs, you just bought new plugs that you want to check before installing, or you want to check the function of your current set of spark plugs, you need to learn the appropriate gap between the two electrodes on the end of each plug.

In this comprehensive guide, we’ll walk through everything you need to know about gapping spark plugs

We’ll cover what it is, why it’s important, the tools.

We also provide helpful tips and advice to ensure your spark plug.

For gapping, you want to be between.28 and.35

Stock cars should run towards the higher end, while tuned cars should run towards the lower end

Both.28 and.30 are popular for chipped guys

Gapping spark plugs involves adjusting the gap between the center electrode and the ground electrode to the manufacturer’s recommended specifications

In this article, we will explore the.