How to Check an Air Control Valve - YourMechanic AdviceHow to test an air control valve

Learning how to check and set idling speed is important if you are going to be able to tinker with a hot rod project.If you have a bigger carburetor, you will have to raise the idle for specific modifications.

Regardless of what application you are in, our guide will show you how to check and set idling speed.You will need a dwell meter or a tachometer in order to check the speed.

If you don't know what a dwell meter is or how to use it, check out How To on using one.You will need one connected to your distributor in order to determine correct ignition parameters.

If the case is in your vehicle, connect the red lead to the distributor.You need to ground the black lead of the dwell meter in order to use it on your distributor.The position on your meter connections will be reversed if your vehicle has positive earth.

If you remove the air cleaner, you will be ready to learn how to check idling speed.

If you want to match the current engine speed to your specifications, use your dwell meter to read the ignition output from your distributor.If you are running a custom cam and need something else, it is best to ask your engine builder for a recommendation.

Learning how to adjust your idle is the next part of our article.This is the second part of how to check and set idling speed article, because you have to know what your idling is before you can set it.

Before you begin learning how to set idling speed, you need to be aware of three main components.

Depending on what your vehicle is equipped with, the manner in which you adjust your idling speed will vary.If you have an idle speed screw, you can adjust it by turning it.

If you have an air bleed screw instead of an idling speed screw, you can screw it clockwise or counterclockwise.

You have to connect the solenoid in order to adjust the idling speed.Wait for the engine's idling speed to drop and remove the lead from the solenoid.You can adjust to the manufacturer's specification with this.

When you are learning how to check and set speed, make sure to know what you want.Make sure to plan for any modifications that may require a higher engine speed.

Do you have any questions about the guide?They should be left for us below.

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