What do timing marks mean on a car?
Timing marks indicate in terms of the number of degrees before the Top Dead Centre (TDC). The older engines used the timing light for setting up the ignition timing. You can set the ignition timing at the correct point of firing while the engine rotates.
How do you set ignition timing with no timing marks?
Rotate the engine very slowly back and forth until the screwdriver is at the maximum height. This indicates the number one cylinder is at Top Dead Center or “TDC” on the compression stroke. Locate the number one spark plug wire on distributor cap and make a tic-mark of this position with a marker pen on the distributor housing.
Where do you punch timing marks on an engine?
The manufacturers carve out/punch these marks on the crankshaft number of degrees before the Top Dead Centre (TDC). The engine-makers normally punch the timing marks on the vibration damper at the front or on the flywheel at the rear of the engine.
How does the ignition timing affect the engine?
Ignition timing also affects several variables. They include the engine power, torque, fuel economy, and also engine’s life to some extent. Modern engines’ control unit uses a computer to control the ignition timing more precisely.
Rotate the engine very slowly back and forth until the screwdriver is at the maximum height. This indicates the number one cylinder is at Top Dead Center or “TDC” on the compression stroke. Locate the number one spark plug wire on distributor cap and make a tic-mark of this position with a marker pen on the distributor housing.
Timing marks indicate in terms of the number of degrees before the Top Dead Centre (TDC). The older engines used the timing light for setting up the ignition timing. You can set the ignition timing at the correct point of firing while the engine rotates.
Where are the timing marks on a spark plug?
This indicates the number one cylinder is at Top Dead Center or “TDC” on the compression stroke. Locate the number one spark plug wire on distributor cap and make a tic-mark of this position with a marker pen on the distributor housing. Remove the distributor cap and observe the position of the rotor.
The manufacturers carve out/punch these marks on the crankshaft number of degrees before the Top Dead Centre (TDC). The engine-makers normally punch the timing marks on the vibration damper at the front or on the flywheel at the rear of the engine.