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Cars that do not have internal combustion engines don't have timing belts. For example, electric cars, steam powered cars, jet powered cars and other non Internal Combustion Engine powered cars do not have timing belts.

The question becomes: Do all gasoline powered internal combustion engine cars have timing belts? No. Some of them use a timing chain instead of a belt. An example is the 2003 & > Honda 4 cylinder. A timing chain may be more reliable and last longer than a timing belt at the expense of added weight.

The purpose of a timing belt cannot be engineered away. The purpose of a timing belt or timing chain is to make sure that the intake and exhaust valve in the piston open and close at precisely the right moment in the otto cycle. Timing belts also take rotational energy from the engine to rotate a small generator called an alternator to charge the battery and provide electricity for the sparkplug and other systems.

All internal combustion engines require a system to precisely control when the intake and exhaust valves open and close, a system to pump fluids, generate a spark (unless it's a diesel with a glow plug) and other necessary mechanisms.

The question becomes: Do all internal combustion piston powered engines have either a timing belt or a timing chain? The answer is probably yes. The timing belt in an Internal Combustion Engine could theoretically be engineered away with some other system of gears and axles, or maybe embedding all systems into the main axle without a belt/chain, but this would be less efficient.

No, not all cars have timing belts.

If a car loses it's timing belt, the engine will immediately stop spinning, that means the valves and spark operate at incorrect times during the otto cycle, potentially causing a crash between the valves and the piston head, causing damage. Some Internal combustion engines who have "Interference" will require complete valve repair after the loss of a timing belt. Other engines without interference have valves raised above the piston, making collision impossible.

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13y ago

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