A vacuum advance mechanism is a component in a distributor that uses engine vacuum to advance the timing of the ignition system. This helps improve fuel efficiency and engine performance by adjusting ignition timing based on engine load. By advancing or retarding the ignition timing, the vacuum advance mechanism optimizes combustion for varying driving conditions.
The total timing advance on a 1995 Chevrolet 350 engine should be around 35 degrees. This takes into account the advance provided by the ignition system.
Serial Number: There is a serial number located on the timing belt cover, and also another one stamped just below the head on the intake side. Engine Size: Located on the emissions sticker under the hood.
It retards the timing so the engine is easier to start. After it starts, it advances the timing back to an advanced position for best engine performance.
Ignition Timing Advancers are mechanical 'bolt-on' pieces to advance the ignition timing of the engine to a specific degree of timing advance. The majority of its application for these parts are for motorcycles or on racing applications.
Ignition Timing Advancers are mechanical 'bolt-on' pieces to advance the ignition timing of the engine to a specific degree of timing advance. The majority of its application for these parts are for motorcycles or on racing applications.
If I understand your question properly I think you're referring to the engine timing. (when the spark plugs fire in relation to the rotation of the engine) When the temperature sensors on the car sense the engine is cold it will advance the timing of the engine to keep it from stalling out.
By rotating the distributor.
That should be a 350 cubic inch engine with a carburator, HEI ignition with a vacuum advance. You will need to hook up a timing light to number one (1) cylinder. That is the front plug on the driver's side. Start the engine and let it warm up. There is an indicator on the front lower side of the engine. It is marked with the degrees. Disconnect the vacuum from the advance and plug it off and then adjust the timing to the desired specs. Tighten the distributor and plug in the advance. If you do not get an increase in rpm when the vacuum is connected, then the vacuum advance is bad.
There should be advance marks on the harmonic balancer, and timing marks on both timing chain gears.
You can't because the timing is controlled by the engine computer.
Need to know what year it is to answer correctly