Initial Timing (TFI-IV)
- Place transmission in Park or Neutral. Ensure A/C and heater are off. Connect inductive timing light and tachometer to engine. With engine off, disconnect the single-wire in-line SPOUT (Yellow/Light Green wire near distributor) connector or remove shorting bar from the double-wire SPOUT connector. For location See Fig 1. Start and warm engine to normal operating temperature.
- With engine at idle speed, check/adjust initial timing to 10 degrees BTDC. Turn engine off and reconnect the single-wire in-line SPOUT connector or reinstall shorting bar on double-wire SPOUT connector. Start engine and check timing advance to verify distributor is advancing beyond initial setting. Remove test equipment and reconnect all disconnected components.
Courtesy of FORD MOTOR CO.