What are timing gears used for?

What are timing gears used for?

The purpose of timing gears is to allow the camshaft and crankshaft to turn the timing chain. The crankshaft turns to move pistons up and down inside the cylinders. The camshaft turns to allow intake and exhaust valves on the cylinders to open and close. These components are important for proper engine timing.

When should I replace timing gears?

Signs that point toward your timing gears need to be replaced include:

• The engine starts but the vehicle runs poorly after it is started.
• Noise from the engine or front of the vehicle.
• The engine does not turn on at all.
• The engine backfires on a regular basis.

How much is a timing gear?

An aftermarket timing gear replacement usually costs around $50 to $500.

Which engines have timing gears?

As a rule, most pushrod engines use a timing chain to drive the camshaft, though some older four and six cylinder engines use a gear set. A short chain or gear set works well in this kind of application because the camshaft is located in the block just above the crankshaft.

What causes timing gears to go bad?

What causes a timing chain to break or wear? Over time, the timing chain stretches due to internal component wear. The chain tensioner or the guides that are connected to the timing chain may wear out as well, causing the timing chain to fail completely. If the chain fails, the vehicle will not run at all.

How are the timing gears lubricated?

These gears are almost always located on the front of the engine, and are lubricated by engine oil. …

Can a timing chain be replaced?

The timing chain normally needs to be replaced between 40,000 and 100,000 miles unless there is a problem. If you do start noticing problems, or your vehicle, contact a certified mechanic to have your timing chain replaced. Over time, the timing chain wears out because it stretches.

What happens if a car jumped timing?

An engine with a jumped timing chain will show signs of very sluggish and slow starting. This happens because the firing sequence is retarded due to a chain that has jumped a tooth. A chain that has jumped two or more teeth may not start at all.