In order to determine this we need to take a total of six measurements. We need to take three measurements along an “X” axis and three measurements along a “Y” axis. We also need to take these measurements at three different depths into the cylinder bore, the top, middle and bottom.

I hope this article helps you understand how to measure your engine’s cylinder bore and how to use the tools needed for the job. By having accurate measurements you can be confident that your rebuilt engine will last another 40 years.

How to measure cylinder borewith micrometer

Cylinder Boremeasurement Tool

In this piece, we will take an in-depth look at machine lubricants, the purposes of lubrication, the benefits it can provide and how it can help you.

Before you order parts or contact a machine shop make sure you measure your engine components carefully and determine the correct size.

Mechanical lubricants are made of oil. In the case of manufacturing and industrial equipment, this typically is either mineral oil (created from crude oil) or synthetic oil (formulations manufactured in a lab). It is in this area that one of the lubrication fallacies takes hold: that lubrication is the simple application of a machine lubricant.

Lubrication should occur on a regularly planned and scheduled basis as part of an overall maintenance strategy. The schedule can be based on usage and wear patterns, but in general, lubricant checks should be part of a standard preventive maintenance checklist, so that a part can be replaced before it wears out. Lubrication should also occur upon the introduction of any new equipment or components, as well as after equipment repairs and major maintenance.

Measuringcylinder borewith telescoping gauge

How to measure cylinder size

To determine your engine’s taper, take your measurement from the bottom depth and subtract it from your measurement from the very top of the cylinder. Compare these values to your engine manufacturer’s specifications.

So you have decided to finally pull apart the engine on your old Garden Tractor and are planning to rebuild as a winter project.

The telescoping bore gauge consists of a handle, a tightening screw, and two spring loaded plungers with convex faces.

How to measure cylinder boretaper

To determine your engine’s out of round, you are going to take the your measurements from “X” and subtract them from “Y”. Compare these values to your engine manufacturer’s specifications.

Machine lubrication should play a role in any maintenance strategy, with the potential to yield a significant return on investment in materials and resources. What is machine lubrication? It is the practice of introducing a lubricating agent — almost always an oil — into machine components to achieve several goals:

The micrometer is a precision measuring instrument where each turn of the thimble moves a spindle in and out. The markings displayed on the barrel and thimble are then added together to give you the final measurement. The increments commonly found on a micrometer are illustrated in the photo below.

In this article I will explain how to measure your engine’s cylinder bore with a micrometer and a telescoping bore gauge.

Cylinder bore sizechart

Understanding how to mitigate some of the most commonly encountered challenges with lubrication can ensure you get the highest levels of performance and efficiency. For example, proper storage and handling can prevent dirt and moisture from contaminating your lubricants. This is essential for prolonging their efficacy and longevity. It’s also important to know exactly how much lubricant to use in any given application. Under-lubricating puts unnecessary wear on your components, while over-lubricating is a waste of resources and could have a negative impact on the operation of your equipment. We recommend reviewing the manufacturer’s recommendations as closely as possible to make sure you don’t fall into the trap of misusing or mishandling your lubricants.

In general, any equipment with rotating or moving parts that come into contact with one another can benefit from lubrication. These include gears, rotors, stators and more.

How to measure cylinder borewith caliper

Nearly any piece of equipment across manufacturing and industry can benefit from lubrication. Some of the key industries where this is especially true are:

Explore the latest industrial maintenance best practices, trends and news from ATS and learn from industry experts and leading manufacturers.

The concept of lubrication is related to that of friction. Friction is a force generated when two objects move against one another — think of one gear interacting with another. This force converts kinetic energy (movement) into thermal energy (heat), which can quickly become a significant level of heat at high speed and frequency. Lubrication introduces another element or medium into the friction equation to transfer heat away from the point of friction. It plays several other roles, as well.

There are generally two major fallacies about lubricating machinery: 1) that it is a simple process, and 2) that it is optional or “as-needed.” Both are false. While the concept of lubrication is relatively simple, it is a technical process that must be considered and treated as such to yield the greatest benefits. Lubrication should also be considered a mandatory part of a comprehensive maintenance program. When both points of view are accepted, a lubrication strategy may provide you with major ROI in uptime, equipment service life, part quality and more.

How to measure cylinder borewithout aboregauge

The telescoping bore gauge is an inexpensive and accurate way of transferring the dimensions of a bore so it can be measured with another instrument.

The tightening screw located on the end of the handle allows for the plungers to hold a position when compressed. The convex faces of the plungers play an important role. It allows the plungers to be compressed to the exact size of the bore when the tool is rotated in an arc. See photo below.

Lubrication is critical for, essentially, any moving parts that encounter one another in a machine. Most frequently, these are rotating parts and components such as gears. Machine lubricant is designed to prevent:

In fact, there are numerous choices and options for lubrication — not only whether to use mineral or synthetic oil for machines, but what type of formulation to use. There is a vast range of formulation options depending upon type of equipment, operation environment, application, usage and more.