to set your base timing without a light, you just turn the motor over in it’s normal direction of rotation until the mark lines up with where you want it.. loosen up the distributor and hook up a spare spark plug to the #1 plug wire.. turn the distributor until it sparks..
How can I adjust timing without timing marks?
How to Set the Ignition Timing With No Timing Marks
Mark the spark plug wires for the cylinder number using a short piece of masking tape on each wire. Rotate the engine clockwise and observe the valves on the number one cylinder.
What should timing be set at Chevy 350?
The timing can vary between 2 and 12 degrees BTDC, the recommended spark plugs are different and even the plug gaps vary. In most cases starting out with 12 degrees of initial advance is about right.
Which way do you turn the distributor to advance timing on a Chevy?
A: Chevy distributors rotate clockwise, so you’d want to turn the distributor counterclockwise to advance the timing. Advancing timing to aid in cold starting will only help if the timing was retarded to begin with.
How do you fix an incorrect ignition timing?
To adjust your timing, all you need to do is turn the distributor housing one direction or the other, depending on whether or not you want to advance or move back the timing. If the rotor turns clockwise, you’ll advance the timing by rotating the distributor counterclockwise, and vice versa.
Where is the TDC on a Chevy 350?
Crank the engine over and hold a finger over the number one spark plug hole. Have an assistant crank the engine repeatedly until you feel compression pushing out of the hole. When this occurs, the number one cylinder is approaching TDC.
What happens if ignition timing is too advanced?
Overheating. If ignition timing is too far advanced, it will cause the fuel-and-air mixture to ignite too early in the combustion cycle. This can cause the amount of heat generated by the combustion process to increase and lead to overheating of the engine.
What should timing advance be at idle?
Most engines will idle happily with an ignition advance of 15 – 32 degrees.
Which way do you turn the distributor to advance timing on a Chevy 350?
A: Chevy distributors rotate clockwise, so you’d want to turn the distributor counterclockwise to advance the timing. Advancing timing to aid in cold starting will only help if the timing was retarded to begin with.
