if it has an automatic its 4 degrees before tdc, with the vaccuum advance off and plugged
The vacuum canister can advance 24 degrees beyond initial timing.
you need to disconnect the electronic advance plug on the side of distributor and aim the timing light on the pointer and move distrbutor until the nuber is right,usually 4 or 8 degrees
Counter clockwise to advance.......clockwise to retard
Yes, but that would eliminate about half of your advance curve, which you need.
AnswerMost of the time, the steps to take to set the timing are on the catalyst sticker under the hood. But first, you must get the vehicle into base timing (usually disconnect a wire from distributor). Remove distributor hold down bolt, hook up timing light to #1 spark plug wire, start engine, and align timing mark (0°) Once this is set, reconnect the wire you had to disconnect for base timing. Timing advance will automatically set itself. if it doesn't, you have a faulty timing advance mechanism on the distributor. You can check timing advance by pointing the timing light at scale (while hooked up to #1 spark plug wire) and rev the motor. Timing marks should move up the scale.On many GM cars and trucks the wire that you disconnect is solid gray in color, it is in the wiring harness on the firewall, the wire has a black plug for separating when doing the timing.
Use a timing light with vacuum advance disconnected set base timing to 6 degrees
trying to set base timing on a 97 Chevy c1500 with a 5.7 engine the wire to disconnect to set base timing is ?
There should be advance marks on the harmonic balancer, and timing marks on both timing chain gears.
cam timing will not change ignition timing i would try 8 or 10 degees advance at idle with the vacuum advance disconnected.
Emmisions sticker under hood should have timing setting try 8 before the wire is a single connector look in the plastic cover on top of firewall that holds wires going across it