Adjusting the ignition timing on 3.0L models (Nissan Patrol Y60)

1. Connect a tachometer and a stroboscope to the engine. Start the engine and warm it up to normal operating temperature.

2. Disconnect the vacuum hose from the distributor and plug it.

3. Adjust the engine idle speed to meet regulatory requirements (see size and adjustment tables at the end of the Guide).



4. Using a stroboscope, make sure that the pointer on the timing cover is aligned with the point on the crankshaft pulley scale corresponding to 3° (the value of one division of the scale is 5° - see the accompanying illustration).

5. If necessary, adjust the ignition timing by loosening the mounting bolt and turning the distributor housing accordingly.

6. After completing the adjustment, tighten the distributor mounting bolt and, if necessary, adjust the idle speed.

7. Connect the vacuum hose to the distributor and, using a stroboscope, check that the pointer moves to the point on the pulley scale corresponding to 15°. If this does not happen, then either the vacuum hose is blocked or the vacuum corrector unit is faulty.

8. Stop the engine and disconnect the diagnostic equipment.

Text duplicated from the website NissanBook