Mercury E8DZ-12A297-A Module - Ignition

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To remove the heatsink assembly, unscrew or unbolt it from the radiator support bracket on non-supercharged models or the belt pulley bracket on supercharged models. On non-supercharged models, remove the two screws holding the ignition control module to the heatsink. Disconnect the electrical connector from the ignition control module. Before installation, coat the metal baseplate of the ignition control module with silicone dielectric compound WA-10, D7AZ-19A331-A or equivalent. To reinstall, follow the reverse of the removal procedure.

To replace the Duraspark ignition coil, disconnect the negative battery cable, mark the wires at the coil using coded tape, remove the coil-to-distributor high-tension lead, disconnect the connections at the coil, and remove the retaining bolts holding the coil bracket. Then, remove the coil from the bracket and install the new coil, applying a thin layer of silicone grease to the inside of the coil-to-distributor high-tension lead boot during reinstallation.

If the module is mounted to the intake manifold, remove the ICM/heat sink-to-intake manifold bolts, then remove the ICM/heat sink.

Disconnect the negative battery cable.

Unscrew or unbolt it from the radiator support bracket on non-supercharged models or the belt pulley bracket on supercharged models.

To replace the TFI-IV or DI distributor stator (PIP sensor), remove the distributor cap and wires, then follow the specific steps for removal and installation of the stator assembly, distributor shaft, and other components. Check for wear or damage and replace any faulty parts as needed.

The listed part number above is a good part number, however it has been superseded to a new number. It is now 5U2Z-12A297-B.