IGNITION TIMING OF CONTACT POINT IGNITION SYSTEM

What is the typical contact point gap for a Toyota 5K engine?

• • 0.25 mm

• • 0.45–0.50 mm

• • 1.00 mm

• • 0.75 mm

Which tool is used to measure the ignition timing on an engine?

• • Multimeter

• • Timing light

• • Oscilloscope

• • Dwell meter

What does BTDC stand for in the context of ignition timing?

• • Before Top Dead Center

• • Before Tuning Degree Check

• • Bottom Top Dead Center

• • Best Timing Device Calibration

Where is the timing mark usually located on a 5K engine?

• • On the valve cover

• • On the crankshaft pulley

• • On the oil pan

• • On the air intake manifold

What should you do if the timing mark is not aligned with the specified BTDC during your initial check?

• • Replace the ignition coil

• • Adjust the contact point gap

• • Rotate the distributor

• • Disconnect the battery

At what idle RPM is the ignition timing typically checked for a 5K engine?

• • 1000–1200 RPM

• • 800–900 RPM

• • 1200–1500 RPM

• • 500–600 RPM

If the ignition timing is too advanced, what symptom might you notice during driving?

• • Poor acceleration

• • Engine knocking or pinging

• • Decreased fuel efficiency

• • Hard starting

What is the purpose of the timing light in this procedure?

• • To provide power to the ignition system

• • To measure the voltage in the coil

• • To illuminate the timing mark for accurate viewing

• • To check the fuel pressure

When adjusting the timing, what direction do you turn the distributor to advance the timing?

• • Clockwise

• • Counterclockwise

• • It doesn’t matter

• • Both directions work the same

Why is it important to check the ignition timing after setting it?

• • To confirm the spark plug gap

• • To ensure the ignition system is functioning properly

• • To ensure the timing has not changed after tightening the distributor

• • To verify the battery voltage