Dynamic Timing

Magnetic Pick-up:

In-Line Sensor Clamp:

1. Install the dynamic timing meter (Rotunda #078-00200, or equivalent) by placing the magnetic pick-up in the timing pointer probe hole. Insert the pick-up until it almost touches the vibration damper.
NOTE: To prevent incorrect readings, ensure that the vibration damper is clean and free of foreign debris and rust scale. Clean the area with emery cloth, if necessary, to remove any scale and foreign debris.
2. Attach the clamp from the timing meter adapter (Rotunda #078-00201, or equivalent) to the line pressure sensor on No. 1 injector nozzle and connect the lead to the timing meter.

Idle Speed Adjusting Screw:

3. Connect the dynamic timing meter to the battery and dial in -20 degrees offset on the meter. Disconnect the cold start advance solenoid connector from the solenoid terminal.
NOTE: Ensure all leads are located away from the accessory drive belts.
4. Turn OFF all engine accessories, then START the engine and bring it to normal operating temperature.
NOTE: When checking or setting dynamic injection timing, it is mandatory that the engine be at the normal operating temperature of 192-212°F (89-100°C). This temperature is needed to ensure proper fuel ignition in the precombustion chambers.
5. With transmission in NEUTRAL and the rear wheels safely raised off the ground, set the engine speed to 2000 rpm using the throttle control tool (Ford part #D83T-9000-E, or equivalent). Observe the dynamic timing meter. The injection timing should be 8.5 degrees BTDC at 2000 rpm.
6. Apply battery voltage to the cold start advance solenoid terminal.
NOTE: Activating the cold start advance solenoid may result in an engine speed increase. If this occurs, readjust engine speed to 2,000 rpm.
7. Check the injection timing. If the injection timing has not advanced at least 1 degree from the reading in step 5, replace the fuel injection pump top cover assembly.
8. If the dynamic timing is not within 2 degrees of specifications, adjust the timing as follows:
a. Turn the engine OFF and note the timing mark alignment. Remove the fast idle bracket and solenoid from the injection pump. Break the injection pump attaching nuts loose (keeping nuts snug) with special tool (Ford part #T83T-9000-B, or equivalent).
b. Install rotating tool (Ford part #T83T-9000-C, or equivalent) on the front of the pump. Rotate the pump clockwise (viewing from the front of the engine) to retard the timing, and counterclockwise to advance timing, by lightly tapping the tool with a rubber mallet. Two degrees of timing change is approximately 0.030 in. (0.75 mm) of timing mark movement.
c. Remove the rotating tool and tighten the nuts. START the engine and check the ignition timing, readjusting as necessary to achieve an injection pump timing specification between 7.5 degrees BTDC and 9.5 degrees BTDC.
d. Turn the engine OFF and remove the timing meter and adapters. Install the fast idle bracket and solenoid.