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Old 05-15-2026, 11:54 AM
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72projectbird 72projectbird is offline
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I always rotate the engine to TDC compression stroke on cylinder #1, then roll the engine back to the 12° advance mark on the timing pointer. Drop the distributor in with the rotor facing #1.

Should fire right up. Remember Pontiacs rotate counterclockwise, so double check the firing order.

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  #2  
Old 05-15-2026, 12:09 PM
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Kenth Kenth is offline
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1. Set the #1 cylinder to TDC on the compression stroke and align the harmonic balancer/pulley mark to the desired initial timing (e.g., 6-10° BTDC).

2. Connect one lead of the test lamp to the distributor side of the coil (negative/\(-\)) and the other to a good chassis ground.

3. Turn the ignition key to the "RUN" position.

4. Loosen the distributor clamp and rotate the distributor body counterclockwise until the light turns off.

5. Slowly turn the distributor body clockwise until the lamp just turns on.

6. Lock the distributor clamp in this position.

HTH

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Old 05-15-2026, 07:22 PM
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VCho455 VCho455 is offline
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Quote:
Originally Posted by Kenth View Post
1. Set the #1 cylinder to TDC on the compression stroke and align the harmonic balancer/pulley mark to the desired initial timing (e.g., 6-10° BTDC).

2. Connect one lead of the test lamp to the distributor side of the coil (negative/\(-\)) and the other to a good chassis ground.

3. Turn the ignition key to the "RUN" position.

4. Loosen the distributor clamp and rotate the distributor body counterclockwise until the light turns off.

5. Slowly turn the distributor body clockwise until the lamp just turns on.

6. Lock the distributor clamp in this position.

HTH
This what I do but I use a timing light instead of a test light. Then not only is the engine timed to start right up but also I know I have spark to run.

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Old 05-15-2026, 10:21 PM
mgarblik mgarblik is offline
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Do what has been suggested above. In addition, pre-fill the carburetor fuel bowl. This can be done through the vent with a very small funnel. You want the engine to start within 5 seconds of cranking. ( three 5 second long cranking times and the engine better be running). Especially a flat tappet engine.

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