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A timing belt links the crank shaft to the cam shaft(s) mechanically, to keep the cam(s) turning at the same rate as the crank, at a given, possibly variable ratio. that allows the right valves to be open at the right time during each stroke made by a piston. piston connects to crank, crank to cam, cam to valve. Make sense?

No it doesn't make sense, even though linked together by the timing belt the camshaft and crankshaft to not turn at the same speed, just look at the size of the camshaft pulley and the crankshaft pulley as they are different sizes the speeds are different!

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14y ago

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