A knocking noise from the engine is the main symptom of a bad harmonic balancer. A squeaking noise is another symptom of a bad balancer. More »

To adjust an engine timing, warm the engine, loosen and turn the distributor to restore the harmonic balancer to its normal level, and retighten the distributor. Refer to the manufacturer's information before adjusting t... More »

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Diagnose engine problems by engine noise by first becoming familiar with the way the engine sounds when it is running properly and then recognizing the pattern and pitch of the noise being made. Clicking or chatter that ... More »

Tappet noise is a ticking, tapping, clicking or clacking noise that occurs when tappets, also called lifters, hit the top of the engine, and this can cause engine misfires and damage. It is usually heard in the engine ha... More »

Some common reasons for engine noise include having worn engine parts, low oil pressure and cam shaft belt problems. Noises that sound like they are coming from the engine, may actually be due to the brakes or fan belt. More »

Common symptoms of a bad gasket are; white smoke is emitted from the exhaust pipe, bubbles in the radiator, overheating of the engine, milky white oil and significant loss of coolant without visible leaks. Most of the sy... More »

To set the timing on a Chevy 305 engine, locate the timing mark near the harmonic balancer. Turn the crankshaft with a ratchet until the timing notch is visible. Attach a timing light to spark plug one and the battery, d... More »