POINT-AND-SHOOT PROBLEMS: make diagnoses with an infrared temperature gun.

摘要

The ability to quickly determine the temperature of a part without any disassembly is a wonderful aid when things go wrong. All it requires is an infrared temperature gun and a dose of logic about how the component functions. In some cases, heat willbe an indication of a problem. In other instances, it will be a lack of temperature. Think it through.Following are some common diagnoses you can perform with an infrared gun and the expected results. -Engine misfire: To determine which cylinder is misfiring on either a gas or a diesel engine, measure the temperature as close to the exhaust port of the cylinder head as possible. Compare this reading with the other cylinders.