Post by
180fan »
https://forums.nicoclub.com/180fan-u3602.html
Sun May 29, 2005 8:35 am
Have the motor fully warmed up, with the TPS sensor unplugged, and the RPM adjusted to about 800rpm for an auto and about 700-750 for a manual. Hook up the timing light to ignition wire 1 (the one closest to the front of the car). Point the timing light down at the crank pulley, you should see a little pointed thing coming out of the front cover. That's one of the markers. You'll now notice that there are 5 cuts into your crank pulley. The left most one (if you're looking at it from the front of the car) is -5 degrees. The next mark is 0, +5, +10, +15, and +20. The +15 is the timing you're looking for if you've a SOHC (89-90) and the +20 if you've a DOHC motor. You adjust where the timing is by rotating the distributor around after loosening the two bolts that hold it in place. Tighten the distributor down once you've adjusted it to the timing you're looking for.