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Don: Here is the easiest way to set the timing, and no timing light is needed. Needless to say this must be done after the points are properly set. Furthermore, it is essential that you verify that the mechanical advance mechanism is functional and not worn out. 1. Rotate the engine until the rotor points to the number one spark plug wire. Note the direction of rotation of the rotor when cranking the engine. 2. Rotate the engine back and forth slightly until the timing pointer on the bell housing points directly at the 4 degrees BTDC mark on the engine flywheel. 3. Remove the number one spark plug wire from the spark plug, insert a good spare spark plug into the number one plug wire, and set it on a good ground where you can easily see when it sparks. 4. Turn on the ignition switch. 5. Loosen the distributor clamp bolt and turn it slightly in the same directioin that the rotor turns when cranking the engine. 6. Slowly rotate the distributor back in the opposite direction from step 5 until the spark plug sparks. 7. Tighten the distributor clamp bolt being careful to prevent rotating the distributor. If your distributor shaft and bushings are good and your mechanical advance mechanism is OK your engine is now timed as accurately or more so than you can do with a timing light. Dean
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