{ "item_title" : "Friction Between Engine and Gearbox", "item_author" : [" Etienne Psaila "], "item_description" : "Every manual gear change depends on a deceptively simple idea: the engine and gearbox must be able to separate, change speed independently and then reconnect without bringing the car to a halt. Friction Between Engine and Gearbox takes the reader inside the mechanical relationship controlled by the clutch pedal. Beginning with the basic problem of connecting a continuously rotating internal-combustion engine to a vehicle that must sometimes remain stationary, Etienne Psaila explains how friction, spring force, rotational inertia and driver input work together every time a car moves away or changes gear. Discover what actually happens at the biting point, why a clutch must slip briefly to work properly, how excessive slip becomes damaging heat, and why a stall is really a struggle between engine torque and vehicle load. Follow the complete clutch assembly from flywheel and friction disc to pressure plate, diaphragm spring, release bearing and gearbox input shaft, and see how cable and hydraulic systems translate movement of the driver's foot into substantial mechanical force. The book explores solid and dual-mass flywheels, explaining why rotational inertia matters, how torsional vibration reaches the gearbox and why modern high-torque engines encouraged increasingly sophisticated damping systems. It also examines multi-plate and wet clutches, clutch adjustment, hydraulic faults and the symptoms behind slipping, dragging, judder, changing pedal feel and unusual noises. Driving habits are examined mechanically rather than through rules alone. Why does holding a car on a hill at the biting point create so much heat? What really happens when the clutch is ridden? Why can an apparently gentle high-revving launch be harder on the clutch than expected? And why can accurate rev matching reduce the work demanded from the friction surfaces? From early cone clutches to modern diaphragm-spring systems, automated gearboxes, hybrids and electric vehicles, Friction Between Engine and Gearbox reveals the engineering hidden beneath one of motoring's most familiar controls. For motorists, enthusiasts and anyone who has ever wondered what is really happening when the clutch pedal goes down-and comes back up. Disclaimer: This book is provided for general educational and informational purposes and is not a repair manual or substitute for manufacturer service information or professional mechanical advice. Vehicle designs and procedures vary. Always follow the relevant manufacturer's specifications and appropriate safety procedures when servicing a vehicle. Any manufacturer names, vehicle models, product names and trademarks mentioned remain the property of their respective owners and are used solely for factual, descriptive and educational purposes. No affiliation, sponsorship or endorsement is implied.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/92/391/524/192391524X_b.jpg", "price_data" : { "retail_price" : "22.99", "online_price" : "22.99", "our_price" : "22.99", "club_price" : "22.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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