The static timing refers to the spark time adjustments made to the ignition system while the engine is not running. In case of the unavailability of a strobe light, static timing is a simplistic way of fixing the ignition timing. Using a test light, you can easily adjust the static timing. However, you need to make prior adjustments to the crankshaft before setting the static timing. Read on to find out how to adjust the static timing in a car’s ignition system.
What is Ignition Timing?
Before you can learn how to adjust the static timing, it is important for you to know what ignition time is exactly. Ignition timing is when the crankshaft is short of bringing the piston of the number one cylinder, also known as the timing cylinder, to the top dead center in the engine. The ignition timing is measured in degrees as the crankshaft rotates.
What is Static Timing?
Static timing is the measure of the ignition timing when the engine is not running. Although some car manufacturers discourage static timing adjustments, it is a quick fix for the initial timing mechanism setup that you can fine-tune later on.
Signs of Bad Ignition Timing
Following are some of the signs that indicate a problem with the ignition timing in your car
- You experience difficulty starting your car.
- Knocking sounds from the engine block.
- Your car suddenly has a poor fuel economy.
- The engine of your car starts to overheat.
- There is an overall decrease in the power output of your car’s engine.
If you experience either of these signs, you might need to adjust the static timing in your car. Consult your car’s owner’s manual to find the accurate ignition time corresponding to the time markings on the flywheel or the crankshaft pulley.
How to Adjust the Static Timing
Adjusting the static timing is an easy task which requires minimum tools and effort. However, it is worth mentioning that this simplistic way might not be an accurate way of adjusting the ignition timing. You should measure the stroboscopic timing using a strobe light for better results.
Things You Will Require
Following is the list of things you will require while adjusting the static timing:
- A test light
- A white marker
- A set of wrenches
- Car’s owner’s manual
Follow the following steps to adjust the static timing:
- Locate the top dead center (TDC) on the flywheel or the crankshaft pulley. If it is not visible clearly, use a white marker to indicate the point where the TDC lies.
- Now refer to the car’s owner’s manual to find the exact timing mentioned in degrees in reference to the TDC. It can be on the TDC, or it can be several degrees before or after the TDC.
- Using a wrench of an appropriate size, you have to rotate the engine clockwise so that the piston number one goes in the compression stroke. You have to make sure that the timing mark is aligned with the seam on the crankshaft housing.
Note: If you end up cranking the engine further than the point required, you’ll have to rotate it 30 degrees back counterclockwise and redo the clockwise rotation slowly.
- Take off the distributor cap and look for a small notch inside the cap. The rotor should be aligned with the notch when the piston number one is in the position to fire up.
- Loosen the bolt of the distributor drive clamp.
- Now start your car’s ignition but do not start the car’s engine. This step is necessary for powering the test light through the car’s battery.
- You have to connect the test light’s positive probe with the distributor’s low-tension terminal and connect the other probe to a suitable ground.
- Now, gently turn the distributor till the light in the test lamp starts flickering. You have to turn the distributor to the closest point where the light comes. You can repeat the process until you are absolutely certain.
- Tighten the distributor in place once you are satisfied.
- You can confirm that the timing is set by cranking the engine counterclockwise slightly with the wrench and then slowly positioning it back to its original place. The light in the test bulb should turn on as the timing marks align.
You can also adjust the static timing using an alternative method that simply requires a spare spark plug. You can also take this opportunity to change the old spark plugs with good quality spark plugs.
Follow the following step to adjust the static timing using a spark plug:
- Turn on the ignition and remove the high-tension lead from the timing cylinder, i.e., the number one cylinder.
- You now have to insert a spare spark plug in the number one-cylinder lead.
- Now, ground the high-tension lead by placing it on a metal surface of the car.
- Using a wrench, crank the engine by hand.
- Stop rotating once you witness a tiny amount of spark.
However, the accuracy of this method is debatable since the type of the spark plug and ground can give varying results. To get accurate and reliable results, it is best to measure and adjust the ignition timing with a strobe light while the engine is running.
It is also worth mentioning that the degrees of rotation are different for different cars, so it is necessary that you consult your car’s owner manual to find the exact specifications for your car’s engine.
You should thoroughly inspect your car’s ignition system. Using a multimeter, you can check the high-tension circuit and the starter circuit to ensure there are no faults in the system. Test the car’s battery and charge it with a car battery charger if necessary.
If you continue experiencing issues starting your car, you need to check and replace the starter motor.
Also, inspect the high-tension leads visually. Fit new leads if the old ones appear to be brittle or worn out.
Regular maintenance of the ignition system can ensure that your engine continues to work at its optimum level and you don’t experience any issues while starting your car.
Knowing how to adjust the static timing can help you easily fix the ignition timing with minimal tools and effort. Adjusting the timing yourself can save you an unnecessary trip to the workshop.