BUSINESS FOR SALE: JIM'S ENGINES AND DYNO SERVICES. Do you have a passion for cars? Are you a skilled mechanic looking to grow in your trade and build your future with a desire to run your own business? First time offered for sale, Jim's Engines and Dyno Services offers a strong, reliable and repeat customer base both in the service and repair field as well as retail part sales. With revenues trending upwards, now is a great opportunity to put your specialized knowledge and skill set to work in an environment where you are at the helm