FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
:
Car repair manuals for everyone.
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Mercury
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1990
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Cougar/XR7 V6-232 3.8L SC
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Tune-up and Engine Performance Checks
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Ignition Timing
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Adjustments
Ignition Timing: Adjustments
The initial timing is preset at 10° +/- 2° BTDC and is not adjustable. On Distributorless Ignition Systems (DIS), spark advance is controlled by the computer system.