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Registered
Join Date: Apr 2009
Location: Cape Vincent, NY
Posts: 841
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Because the 911 has the final timing advance marked on the pulley you do not need to adjust the knob on your timing light. The advance knob is used for cars that only have a TDC mark on the pulley when you want to confirm the total advance. Keep yours at 0 and use the pulley marks.
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1968 911S "Leona"
Air goes in and out, blood goes round and round, any variation on this is a bad thing.
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