What should a SBC timing be set at?

Should be set to somewhere around 34 degrees on a 350 with older design heads, maybe a bit less for the modern heads. Yep. If your advance isn't "all in" by 2800-3000 RPM, I'd try different springs on the advance mechanism.

.

Beside this, what is the correct timing for a Chevy 350?

The timing can vary between 2 and 12 degrees BTDC, the recommended spark plugs are different and even the plug gaps vary. In most cases starting out with 12 degrees of initial advance is about right.

Similarly, what is initial timing? Initial timing refers to where the timing is set at an idle. This is also where you position the distributor when setting the timing.

Keeping this in consideration, what should timing advance be at idle?

Most engines will idle happily with an ignition advance of 15 - 32 degrees. This is a very wide range - some engines will certainly not be happy at 32 degrees and others won't be at 15 degrees!

What happens if ignition timing is too advanced?

If ignition timing is too far advanced, it will cause the fuel-and-air mixture to ignite too early in the combustion cycle. This can cause the amount of heat generated by the combustion process to increase and lead to overheating of the engine.

Related Question Answers

How do you set timing without a timing light?

Turn the engine to the timing mark you want: be sure the rotor is pointing at the #1 plug wire connector (inside distributor) if it's not, turn the engine until the mark comes back; connect a test light between ground and the coil negative terminal; rotate the distributor clockwise until the light goes out; then turn

How do I know if my timing is off?

Check out these symptoms of a bad or failing timing belt

1. Ticking noise coming from the engine. The timing belt is attached by way of a series of pulleys to the engine's crank and cam shaft.
2. Engine won't turn over.
3. Engine misfires.
4. Oil leaking from in front of the motor.

Which way do you turn distributor to advance timing on SBC?

A: 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.

Can you set timing with a vacuum gauge?

I am an old timer, been doing this since the late 60's and I will tell you that you can not set timing with a vacuum gauge. It is not even close to accurate. You need a timing light. Some carburetor adjustments are best done with a vacuum gauge or an A/F meter.

Does advancing timing increase idle?

Advance timing, and response increases, easier to start, more power(torque) off idle. Some engines use the vacuum advance to advance timing at idle. This allows the engine to be able to start without kicking back against the starter since the base timing is actually retarded slightly.

What happens when you advance timing?

Advancing the timing means the plug fires earlier in the compression stroke (farther from TDC). Advance is required because the air/fuel mixture does not burn instantly. It takes time for the flame to ignite the all the mixture. However, if the timing is advanced too far, it will cause an Engine Knock.

How does retarding timing affect an engine?

Retarding the timing on these engines compensates for the denser fuel-air mixtures by firing the plugs later in the compression cycle. This prevents premature combustion and allows the engine to run at peak performance without destroying itself in the process.

Can timing affect compression?

You can also confirm a timing problem by checking engine compression. If the valve timing jumps, you'll get little or no compression equally in all cylinders. As a result, the engine often cranks too easily, with little starter current draw.

What is the best ignition timing?

That is typically 15-35 degrees before TDC (top dead center) of the power stroke depending on the engine speed. Best power is achieved when ignition timing is set to fire the spark ahead of time to reach that peak pressure at about 2 degrees after TDC.

Which way is advanced timing?

Turn the distributor in a counterclockwise direction to advance the ignition timing. Do not over-adjust the distributor, as even a slight movement will yield a significant change in the ignition timing.

Can timing cause rough idle?

An engine slightly out of time can idle roughly since the spark is not in sync with the cylinders. Too much timing advance or retardation causes serious drivability problems. Many problems may upset timing. However, the most common is an overstretched timing belt or chain, or a bad tensioner after miles of operation.

Does advancing timing Increase temperature?

16.6. 4 Effect of Ignition Timing on Engine Combustion. It can also be seen that advancing the timing increases the peak temperature (see Fig. 16.18) achieved during combustion, but tends to decrease the release temperature, while retarding reduces the peak temperature but increases the release temperature.

How do you check valve timing?

To find exact TDC, first set the dial indicator to zero at the point of highest piston travel. Next, turn the crankshaft counterclockwise about 90 degrees. Then, slowly rotate the crankshaft clockwise (the normal direction of engine rotation) until the indicator is . 030" below the TDC (zero) setting.

How does a timing light work?

When you pull the trigger of the timing light (with the engine running), each time the Number 1 plug fires, the timing light flashes a beam of light. The strobing timing light "freezes" the motion of the pulley and allows you to see how many degrees before or after TDC the spark is firing.