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Modern Automotive Technology. by Russell Krick. Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois. PowerPoint for. Body. Made of sheet metal, plastic, or fiberglass parts Forms the passenger compartment Serves as an attractive covering for the chassis Chassis
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Modern Automotive Technology by Russell Krick PublisherThe Goodheart-Willcox Co., Inc.Tinley Park, Illinois PowerPoint for
Body • Made of sheet metal, plastic, or fiberglass parts • Forms the passenger compartment • Serves as an attractive covering for the chassis • Chassis • includes the engine, suspension, steering, brakes, wheels, tires, etc.
Frame • Strong metal structure that supports various vehicle components • Body-over-frame construction • body bolts on to the frame • Unitized (unibody) construction • inner body sections support the engine, suspension, and other major assemblies
Unibody Construction Frame is an integral part of the body
Sedan Uses center body pillars, or “B” pillars, between the front and rear doors Has 4 doors
Coupe 2 door car
Convertible Uses a vinyl or cloth top that can be raised or lowered
Hatchback Large rear door allows easy accesswhen hauling items
Station Wagon Provides a large rear interior compartment
Minivan Has a higher roofline for moreheadroom and cargo space
Sport-utility Vehicle Provides the comfort of a passenger car, the interior space of a station wagon, and the durability of a truck
Vehicle Identification • Door Jam
Vehicle Identification • Windshield
Vehicle Identification • Under hood
Number of Cylinders • Most car and truck engines have either 4, 6, or 8 cylinders • Some may have 3, 5, 10, 12, or 16 cylinders • Engine power and smoothness are enhanced by using more cylinders
Overhead Cam Engine Camshaft is located in the top of the cylinder head
Overhead Cam Engine • OHC engines may use one or two camshafts: • Single overhead cam (SOHC) engine • uses only one camshaft per cylinder head • Double overhead cam (DOHC) engine • uses two camshafts per cylinder head • one cam operates the intake valves, while the other cam operates the exhaust valves
Rotary Engine Animation http://www.animatedengines.com/wankel.shtml
If an engine has a bore of 4” and a stroke of 3”, what is its piston displacement? piston (22) x 3.14 x 3displacement 4 x 3.14 x 3 37.68 cu. in. = = = Piston Displacement