Feeler gauges are a type of precision measuring tool that are commonly used in automotive and mechanical applications. They are thin, flat, and flexible strips of metal that come in a variety of thicknesses, each of which is labeled with a specific measurement in either inches or millimeters. In this article, we will explore what feeler gauges are, how they work, and some of the common applications for which they are used.
What are feeler gauges?
Feeler gauges are used to measure the clearance between two parts that should not touch, such as the spark plug gap in an engine or the gap between the brake pads and rotor in a vehicle’s braking system. They can also be used to set the clearance between parts that need to move freely, such as the clearance between the valve stem and rocker arm in an engine.
In addition, it can be used to measure the crack widths. In structural assessments, research studies, etc. it is required to get the correct crack width accurately. These situations, this tool can be used.
Feeler gauges are typically made of high-quality steel or other metals, and they are manufactured to very precise tolerances. They come in sets that contain a variety of thicknesses, typically ranging from 0.05 to 1.0 millimeters. These values may changing. Each blade in the set is usually labeled with its thickness in both imperial and metric units.
How do feeler gauges work
Using a feeler gauge is a simple process. First, you select the blade that is closest in thickness to the gap you need to measure or set. Then, you slide the blade into the gap until it is snug but not too tight. You can then read the thickness of the blade and use this measurement to adjust the gap as needed.
When using a feeler gauge to measure a gap, it is important to select a blade that is slightly thinner than the gap you are measuring. This ensures that the blade will slide into the gap easily and provide an accurate measurement. If the blade is too thick, it will be difficult or impossible to insert into the gap, and if it is too thin, it may not provide an accurate measurement.
Common applications for feeler gauges
Feeler gauges are commonly used in a variety of automotive and mechanical applications. Some of the most common uses for feeler gauges include:
- Checking the crack width in the concrete
- Setting the spark plug gap in an engine
- Checking the clearance between the valve stem and rocker arm in an engine
- Measuring the clearance between brake pads and rotors in a vehicle’s braking system
- Setting the clearance between the contact points in a distributor
- Measuring the gap between electrical contacts in switches and relays
- Checking the clearance between mating surfaces in gears and bearings
Feeler gauges are a versatile and essential tool in many automotive and mechanical applications. They provide a precise and reliable method for measuring and setting the clearance between parts, ensuring that everything works smoothly and efficiently.