Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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The timing mark on the crankshaft pulley must align up exactly, then the mark on the distrubutor shaft must align with the dot on the distributor gear, then installed in the engine, the timing marks on the distributor body then will align with the rotor.
Important: The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).
The flat in the distributor housing must point toward the front of the engine.
Once the distributor is fully seated, align the distributor rotor segment with the number 6 pointer (1) that is cast into the distributor base.
If the distributor rotor segment does not come within a few degrees of the number 6 pointer (1), the gear mesh between the distributor and camshaft may be off a tooth or more. Repeat the procedure again in order to achieve proper alignment.
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