Classic Chevy Engines and Engine Parts

The engine in your classic Chevy has many parts. Their jobs are vital to how well that car or truck you love runs. So, what are the major parts of an engine and what do they do?

• Intake valves regulate the ratio of air to fuel in the engine
• Pistons pressurize the gas and oxygen mix
• Spark plugs ignite the mix, causing combustion
• Exhaust valves regulate the resulting fumes
• Valve covers protect both valve sets
• The camshaft helps coordinate the activities of the valves
• The cylinder head helps keep gases and motor oil from seeping out
• The crankshaft turns engine power into rotational motion
• The drive shafts and transmission use that motion to turn the wheels and tires
• The oil sump or oil pan stores engine oil, which is used to lubricate everything

Of course, plenty of other components ensure the engine works right. For instance, there's a pulley that works with the water pump and radiator, a clutch pedal and flywheel work with a manual transmission, and harmonic balancers work with the crankshaft and reduce operational vibration. There are even frame brackets and motor mounts keep it all in place.

When any stop working, however, your Check Engine light may turn on, and engine problems will almost always follow. Signs of them include:

• Emissions increases
• Dropping fuel economy
• Issues speeding up
• Longer warm-up times
• Rougher idling
• Stalls
• The inability to start your vehicle at all

An engine inspection should give you a better idea of what's going on. Plug in a code reader and evaluate results. If they suggest you need to replace an engine component or two, you've come to the right auto parts store.

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