Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#430878 09/09/19 09:38 AM
Joined: Nov 2016
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Shade Tree Mechanic
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Shade Tree Mechanic
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Posts: 58
My 1952 Styleline Deluxe has a 1954 mechanical lifter engine and a powerglide transmission. To set the ignition timing the shop manual says to set the octane selector to "0", attach a timing light, and rotate the distributor body until the steel ball on the flywheel lines up with the pointer on the flywheel housing. The ignition timing on the 1954 engine is 2 degrees after top center. By lining up the ball and pointer is the 2 degrees ATC automatically dialed in? Many thanks for your input.

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I would set the timing where the engine runs the best and advanced as far as possible but does not bind up when starting. I would do that by advancing via the octane selector so youcan find your way back if necessary.

Last edited by Chev Nut; 09/09/19 01:44 PM.

Gene Schneider
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Hall Monitor
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I haven't used a timing light in years. I just set at fastest/smoothest idle, lock it down and fine tune (if necessary) using the octane selector.


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I also do as Tiny except none of mine have an octane selector. Set to fastest idle and starter turns over smoothly when warmed up. Some (10s-20s four cylinders) have to retard timing when first started and mixture is rich. With the 4 bangers need to make sure that there is an idle speed drop when retard lever is used.


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