Engines have a timing belt, Timing chain or timing gears that keep your engine timing all synchronized.

Its job is to make sure the valves are out of the way when that piston comes flying toward the engine’s cylinder head.

So, To understand the importance of engine timing, let’s understand what is happening within the cylinders of a normal four-stroke engine. Firstly, the piston within the cylinder is forced downwards and an air/fuel mixture enters through the opening of an inlet valve. Once the piston reaches (BDC) (bottom dead centre) it then starts its journey back to the top of the cylinder (top dead centre) with the inlet valve closing, thus compressing the air/fuel mixture.

A spark is then used to ignite the mixture from the spark plug, with this combustion forcing the piston back down to (BDC). Finally, the exhaust valve opens, allowing the gases produced by combustion to exit the cylinder for the cycle to start again.

Choose Your DannysEnginePortal.com Help Topic Below

Timing Belts-Chains Or Gears – All Do The Same Thing, Differently

Timing Belt – Why Should You Replace Your Timing Belt

Ignition Timing – Your Engine Knows Timing Is Everything

VVT-Variable Valve Timing-Cam Phasing – How Does It Work

Timing Belt Failure Symptoms – Check Your Owners Manual

Interference And Non-Interference Timing Belt Or Chain

Timing Belt – Transfers The Rotation Of The Crankshaft To The Camshaft

Variable Valve Timing (VVT) Generic OBD II Fault Codes

Timing Belt Neglect – You Could Be Driving A ticking Time Bomb

Top Dead Center (TDC) What You Need To Know

Valve Job – Why Would You Need One – What Should You Expect




Timing Belts vs. Chains vs. Timing Gears

  • Timing Belts, are light and quiet, but they don’t last very long, relatively speaking. Oil and coolant leaks speed up this deterioration. Most automakers recommend replacing the timing belt every 60,000 to 105,000 miles.
  • Timing Chains, are heavier and more complex than timing belts, but they also last much longer. Really, unless there’s a problem, timing chains don’t have a replacement interval. Regular oil changes prevent premature wear, stretching, and failure.
  • Timing Gears, are the heaviest and noisiest, with a distinctive whining noise. Like timing chains, timing gears are strong, accurate and last a long time.

They can all cause a lot of damage to your engine if they break.

Please Share DannysEnginePortal.com News

Thank You !!