Where is timing mark for 1993 ford aerostar?

The timing mark for a 1993 Ford Aerostar is located on the crankshaft pulley and corresponds with a timing tab on the engine block. To find it, you'll need to look for the timing marks on the harmonic balancer, which are typically notched or painted. Align these marks with the timing pointer to check or set the ignition timing. Make sure the engine is at the appropriate RPM and the timing light is properly connected for accurate readings.