I'd just set it by ear and how easy it starts once it's set.
the timing is usually set by adjusting the distributor and using a timing light on the number one cylinder and pointing the light at the harmonic balancer on the bottom of the engine crankshaft pulley,the timing mark on thr balancer should be marked on the correct degree for example 10 degrees before top dead center. as the distributor is turned the timing on the light will adjust to the balancer . to get the correct timing look under your hood for a sticker that has timing and sparkplug gap specs.
It is possible that the harmonic balancer has spun.check the rubber around the balancer for cracks or decay.If so replace balancer...
Yes, and I would recommend replacing the timing belt at the same time.
Pointer aligned with hash mark on balancer, #1 piston at tdc.
there will be a timing mark on the harmonic balancer. and a timing tab on the timing chain cover. point your timing light at the timing tab and you should see the timing mark on balancer. if not timing is way out.markstang.
It is set to zero degrees with a scan tool. It can not be done with a timing light.
There is a bolt at the base of the distributor. Loosen the bolt and the distributor can be turned to adjust the timing. A timing light needs to be used at the harmonic balancer to make the adjustment properly.
The timing marks should be on the balancer and the timing cover. If they are not there, someone removed the window marks.The timing marks should be on the balancer and the timing cover. If they are not there, someone removed the window marks.
An engine can be timed without a timing light by using the markings on the harmonic balancer. Each mark indicates 1 degree above or below top dead center.
harmonic balancer
Some people mistakenly change the harmonic balancer or the timing cover, without matching it up. Some had a timing mark located at the top center of the timing cover, and some were off to the side (between 1 and 2 o'clock) If you have a mismatched balancer & timing cover, you will not be able to line up the marks. Sometimes the rubber goes bad, and the outer ring of the balancer slips... which would cause the timing mark to move.
loosen the nut holding the distributer in place and turn the distributer clockwise or counter-clockwise. You will need a timng light to see the timing mark on the harmonic balancer. There will probably be complete instructions with the timing light.