How do you advance timing
"Timing advance" refers to the number of degrees before top dead center (BTDC) that the spark will ignite the air-fuel mixture in the combustion chamber during the compression stroke. Retarded timing can be defined as changing the timing so that fuel ignition happens later than the manufacturer's specified time.Too little spark advance will cause low power, bad gas mileage, backfiring, and poor performance. Too much advance will cause hard starting and pre-ignition. ... Many newer cars have "knock sensors" that retard the spark when pre-ignition occurs. If your car does this from time to time, you may not need to do anything.Chevy distributors rotate clockwise, so you'd want to turn the distributor counterclockwise to advance the timing. Advancing timing to aid in cold starting will only help if the timing was retarded to begin with.If the timing is off, damage can occur. In some engines, called “interference engines,” the consequences can be especially bad. ... You could end up having to have your engine rebuilt, or even replaced. If your cam timing is off, chances are you'll know because your car will not be running well, if it's running at all.
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