AT 225 - Engine Machining I

Credits: 8
Variable Credit Course: No

Lecture Hours: 44
Lab Hours: 88
Worksite/Clinical Hours: 0
Other Hours (LIA/Internships): 0

Course Description: Engine machining operations and building procedures of gasoline and diesel engines. Includes a variety of procedures focusing primarily on cylinder heads including teardown and diagnosis, machining of parts, assembly and testing, and custom machining for performance applications. Emphasis will be placed on safe practices while using specialty equipment, and attention to detail in measuring, machining and assembly practices.

Prerequisite: AT 101 and AT 199 and WT 231 with a D grade or higher; and AT 205 with a B- grade or higher; and concurrent enrollment in MANF 121.
Meets FQE Requirement: No
Integrative Experience Requirement: No

Student Learning Outcomes

Demonstrate understanding of engine machining service hazards and safety by conducting safe practices while working in the lab.
Demonstrate understanding of cylinder head components and their function by correctly identifying components and explaining their operation.
Demonstrate ability to diagnose cylinder head condition by testing for worn or failed components and determining necessary machining processes.
Demonstrate understanding of engine machining equipment and their function by correctly identifying machines and demonstrating knowledge of their operation.
Demonstrate ability to rebuild or custom build a cylinder head by performing necessary machining processes to achieve factory or custom tolerances.
Demonstrate understanding of the relationship between cylinder head flow and horsepower by performing a cylinder head flow bench test.
Demonstrate ability to select parts for engine performance modifications correctly by applying learned knowledge of engine operation and using engine simulation software.

Course Contents

Cylinder head components and their purpose and function.
Cylinder head disassembly, inspecting components for wear and damage.
Precision measuring tools to correctly identify part wear and calculate clearances.
Machining procedures related to cylinder head reconditioning.
Proper set-up and machining of a cylinder head assembly including valve guide service, valve seat service, pressure testing, resurfacing, and a variety of other general machining procedures.
Cylinder head assembly procedures.
Performance modifications related to cylinder heads including proper part selection for specific applications.
Safe practices while using a variety of engine and general machining equipment.

Instructional Units: 10