Machine mechanics build and repair engines of various types and sizes, from lawnmowers to racing cars. They may participate in the design phase, repair engines, and perform rebuilds. Training can be obtained through technical schools or hands-on education, and certification can be helpful in job applications.
A machine mechanic builds and repairs engines at the request of customers. These specialists can work on engines of many types and sizes, from small engines used in devices such as lawnmowers to high-performance engines in racing cars. Some work for shops or manufacturers with a machining department, while others may be contracted to provide ongoing support to a facility or staff; Racing cars, for example, may need regular attention from a mechanic who focuses on engine maintenance and management.
The nature of the work can depend on many factors and vary by employer, specialty and context. Some engine machinists participate in the design and development phase of new engine products. As engineers and other designers create a framework for a new design, the machine mechanic can create test and sample engines. This allows the team to evaluate engine performance, make design changes, and develop technical specifications that will go into formal engine documentation.
Engines that need repair can be sent to a mechanic, who can perform an evaluation and make necessary repairs. The required tasks may involve removing components, manufacturing or ordering new ones, and installing them. Such repairs can vary in complexity and delicacy. Engines designed for high performance, for example, often have very tight tolerances and require meticulous maintenance to operate in peak conditions. Other engines have higher tolerances and may be more forgiving.
Rebuilds are also part of a machine mechanic’s job. Engines may need to be periodically rebuilt as components wear out and reach the end of their functional service life or in response to a catastrophic event that destroys all or part of the engine. Equipment may also need an overhaul to compensate for changing standards, as may be the case if harsh environmental laws come into effect and engines need to be modified to address them.
There are several careers that a person can pursue to become a machine mechanic. One option is to complete a program at a technical school or college where students receive training in machining and related topics. Another option is to learn from a qualified mechanic in a shop to receive hands-on education. In both cases, it may be possible to take a certification exam to gain special qualifications as an engine driver after demonstrating competence. This can be helpful in job applications, as some stores prefer to hire technicians and machinists with certifications.
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