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The 1966 Pontiac OHC Six engine was the first US mass-produced vehicle to use a timing belt, [21] [22] while the 1966 Fiat Twin Cam engine was the first mass-produced engine to use a timing belt with twin camshafts. Carmakers began to adopt timing belts in the 1970s and compared to timing chains are less expensive, smaller, lighter, quieter ...
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.
The simple three-main-bearing crankshaft attached two connecting rods to a single crankpin, one rod from each cylinder bank. As with other crankshafts, static and dynamic balancing was performed (as this video on the Ford flathead V8 shows). The short crankshaft proved quite durable in comparison to six-cylinder engines when roughly handled.
However, these generally have the roller at the point where the cam lobe contacts the rocker, rather than where the rocker contacts the valve stem. Some OHC engines employ short rocker arms, also known as finger followers, [2] in which the cam lobe pushes downward on the back of the rocker arm to open the valve. In such a configuration one end ...
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New options included a rear window defroster, anti-theft alarm system, bright metal wheel covers, and an AM-FM Stereo radio. [10] All cars ordered with a radio, like the C2 cars, continued to be fitted with chrome-plated ignition shielding covering the distributor to reduce interference. [3] [4] C3 Corvette interior 1974 Corvette, headlights open
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