Mercury D6RY-7A247-B Switch Assy - Starter Inhibitor

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The automatic transmission linkage should be properly adjusted.

Manual transmission switches are closed by the clutch pedal assembly when the clutch is fully depressed. There are two types of manual switches: clutch pedal mounted (early models) and clutch master cylinder mounted (later models).

The MLPS retaining bolts should be tightened securely.

The neutral safety switch on the C3 transmission is non-adjustable and any fault will be due to a malfunctioning switch, wear on the internal actuating cam or faulty wiring. If the switch is suspect, replace it with a new one. Always use a new 0-ring seal and tighten to the specified torque.

To begin, chock the front wheels and jack up the rear of the car, supporting it on firmly based axle stands or positioning it over an inspection pit. Next, disconnect the downshift linkage rod from the transmission downshift lever. Apply some penetrating oil to the downshift lever shaft and nut, allowing it to soak for a few minutes. Then, remove the transmission downshift lever retaining nut and lift away the lever. Proceed by removing the two securing bolts of the neutral safety switch and disconnecting the multi-wire connector. Lift away the switch. To refit the switch, place it on the transmission unit and lightly secure it with the two bolts. Move the selector lever to the 'N' (neutral) position and rotate the switch. Insert a No. 43 drill into the gauge pin hole, ensuring it goes a full 0.48 in (12.30 mm) into the three holes of the switch. Fully tighten the switch securing bolts and remove the drill. Finally, refit the components in the reverse order of removal and verify that the engine only starts with the selector lever in the 'N' and 'P' positions.