Ford's "Beat to Hell and Back" 3.5L EcoBoost -- The Tear Down! скачать в хорошем качестве

Ford's "Beat to Hell and Back" 3.5L EcoBoost -- The Tear Down!

The block, pistons, turbos, crankshaft, valves and other internal parts of the 3.5-liter F-150 EcoBoost "hero" engine are still within rigid factory specifications after enduring testing that simulated 10 years of wear and 165,000 miles. In an unprecedented -- and high-stakes -- public reveal, Ford engineers disassembled the engine for the first time in front of a live audience of nearly 1,000 at the North American International Auto Show (NAIAS) in Detroit. "You know that in a Detroit crowd, there are a lot of auto mechanics who know a good engine from a worn out one," said Heinz, a long-time engine mechanic who watched the teardown with a group of students. Heinz said he credits the engine design, the high-quality manufacturing process and the precise tolerances between the moving parts with the low wear found on the components. Over the past three months, EcoBoost engine No. 448AA performed a series of rigorous events to prove out the new technology's durability. Specifically, the engine hauled 55 tons of lumber, ran at full throttle for 24 straight hours towing 11,300 pounds, beat competitors' larger V8 engines in an uphill towing competition and completed the world's toughest desert endurance race, the SCORE Tecate Baja 1000, in Mexico. Said one spectator: "Ford has a lot of guts to take this apart in public, especially after all that has been done to this engine." Ford powertrain technician Chris Rahill has torn down nearly 2,000 engines in his 20-year career at Ford Motor Company. He said the engine he disassembled is not even close to being near the end of its life. "Given the intense engineering and research and the severity of the durability tests we run that go into all Ford engines, I'm not at all surprised how good this engine looked," said Rahill. "Everything was within manufacturing specification. Nothing was out of the norm." Back to the dyno lab After completing the SCORE Tecate Baja 1000 in just over 38 hours, the engine was pulled from its race truck and sent to Dearborn for analysis. There it produced best-in-class 420 lb.-ft. of torque and 364 horsepower -- one horsepower less than its original number. "The results on the dyno confirmed that the EcoBoost truck engine still delivered outstanding power even after the extreme use this engine had been subjected to," said Phil Fabien, Powertrain Operations. Key findings related to the durability of the 3.5-liter EcoBoost truck engine discovered at the teardown include: Turbochargers: No visual issues with the compressor or turbine, which rotated freely . Pistons: Rings spun freely and pistons showed no obvious signs of wear. Carbon deposits: Nominal. Carbon deposits can vary based on quality of fuel used and when in the cycle the engine was stopped. Cylinder leakdown test: The engine's cylinders are pressurized with 100 pounds of air to measure the sealing performance of the rings and valves. The cylinder leakdown test results ranged from 6 percent to 13 percent. That's well within manufacturing tolerances, and as demonstrated by the dyno test, had no affect on the engine's performance.