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.
It is possible that the harmonic balancer has spun.check the rubber around the balancer for cracks or decay.If so replace balancer...
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.
There is a mark on the timing chain cover behind the harmonic balancer(behind the crank pulley). The harmonic balancer also has a slot cut in it so that you can line the crank up with the mark on the timing cover. The mark on the timing cover should sit at the 2 o'clock position or the 12 o'clock position. My 96 Chevy 305 is at the 2 o'clock position.
The timing mark is a line that goes across the harmonic balancer that should line up with the mark on the timing chain cover. It is on the drivers side on the bottom of the timing cover.
This is a good question. Yes, the keyway, is accurate. What is not, is the balancer. After 74, the balancer keyway is offset, from the timing mark. Any harmonic balancer you use, look to see where the keyway is, compared to the hash mark on it. Make sure they line up.
That means the timing chain and gears are worn out / to loose.
4 degrees btc-before top dead center with the vacuum spark line disconnected.the timing mark location is on the harmonic balancer. this is for a 327 engine
If you look at the harmonic balance you will see on the front of it a medium size circle. That will be your timing mark.
The timing mark is one the Harmonic balancer and the pointer is attached to the timing cover. Roll the motor over to the timing mark, the be sure and mark the number one plug {marked on the intake manifold} the position of the rotor pointer on the distributer.
this site takes to long when we are stressed out i just need timing marks for 5.7l Chevy engine Timing mark is located on the balancer using a timing light aim at the balancer and the straight edge inscribed will show up set at about 6 dgrees before TDC
buy a timing light. clip it to the #1 plug wire. loosen the bolt on the distibutor. Unplug the timing advance. start the engine Point it to the harmonic balancer and turn the distributer until the timing mark on the timing cover lines up with the mark on the harmonic balancer. Tighten the distibutor bolt. plug in the timing advance.
bryden hugginggs is coool its the second mark that approaches the timing plate. fist one disreguard