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The seal ring and mating ring are sometimes referred to as the primary sealing surfaces. The primary sealing surfaces are the heart of the end-face mechanical seal. A common material combination for the primary sealing surfaces is a hard material, such as silicon carbide, ceramic or tungsten carbide and a softer material, such as carbon. Many ...
A rocker cover, (UK), or valve cover (elsewhere) is a cover that encloses the rocker arm in an internal combustion engine, bolting with a gasket seal to the engine head. Engines with more than one head (such as a V8 ) will have multiple rocker covers.
A plain Derby shoe. A derby (UK: / ˈ d ɑːr b i / ⓘ DAR-bee, US: / ˈ d ɜːr b i / DUR-bee; also called gibson [1]) is a style of boot or shoe characterized by quarters, with shoelace eyelets, that are sewn on top of the vamp. [2] This construction method, also known as "open lacing", contrasts with that of the Oxford shoe. [citation needed]
99C: "C" presumably means "clip", because the 99C was the only variant to have a detachable box magazine rather than the iconic internal rotary magazine. The Model 99C was primarily based on the 99F and was produced from 1965 to 1997. 99CD: Deluxe version of the Model 99C. The Model 99CD had a Monte Carlo cheekpiece stock.
Head gasket with a leak between the rightmost and centre cylinders. A leak in the head gasket - often called a "blown head gasket" - can result in a leak of coolant, the combustion gasses, or both. Blue smoke from the exhaust suggests that excess oil is entering the combustion chambers (although there are other possible causes than a head ...
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The Beechcraft Model 99 is a civilian aircraft produced by Beechcraft.It is also known as the Beech 99 Airliner and the Commuter 99.The 99 is a twin-engine, unpressurized, 15 to 17 passenger seat turboprop aircraft, derived from the earlier Beechcraft King Air and Queen Air.
The race was the subject of the 1935 novel Women in the Wind: A Novel of the Women's National Air Derby by Francis Walton and the 1939 film adaptation, starring Kay Francis. The book The Powder Puff Derby of 1929: The First All Women's Transcontinental Air Race, written by Gene Nora Jessen, was published in 2002. [28]