How to set the timing
what engine..3.1 3.8 ? find #1 spark plug wire..To rotate the distributor, start by unscrewing its bolt with a socket wrench in order to loosen it. Once the distributor is loose, hook up the timing light to the that cylinder, turn on the strobe, direct it at the harmonic balancer, and locate the mark that shows your degrees before top dead center. Rotate the distributor so that it's aligned with this mark, and then fasten the distributor bolt with the socket wrench.
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