MerCruiser Ignition Coil Service Procedures 3.0L 4.3L 5.0L 5.7L 6.2L 8.2L

The following ignition coil service procedures detail the removal and installation for 2001 2002 2003 2004 2005 and 2006 MerCruiser 5.0L, 5.7L and 6.2L MPI engines. 

Models these procedures apply to:

Sterndrive (MCM)

5.0L MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo Horizon, MX 6.2 MPI, MX 6.2 MPI Horizon

Inboard and Tow Sports (MIE)

350 MAG MPI Inboard, 350 MAG MPI Horizon Inboard, MX 6.2 MPI Inboard, MX 6.2 MPI Horizon Inboard, 350 MAG MPI Tow Sports. 

IGNITION COIL

REMOVAL

1. Detach the wire harness connector that is attached to the coil. 
2. Detach the wire harness connector leading to the ignition module.
3. Take off the high tension lead from the coil. 
4. Take off the coil bracket assembly from the motor by first removing the coil bracket fasteners.
5. Take off the coil from the coil bracket.

INSTALLATION

1. Reinstall the the coil bracket and the coil to the motor bracket, reuse the same fasteners unless damaged.
2. Reconnect the high tension coil lead back to the coil.
3. Reconnect the wire harness connections to the coil and ignition module, including any other harness removed.

IMPORTANT: Apply roughly 1/2 ounce of silicone dielectric compound surrounding the top of the hight tension lead tower before connecting the high tension lead (coil wire). However, never apply the compound inside the hole on the tower.

Special Material Needed: Silicone Dielectric Compound, apply to the coil high tension lead tower. Part number 92-823506-1

NOTE: Never attempt to service your MerCruiser without a repair manual handy. Additional precautions, illustrations, diagrams, step-by-step service procedures and other data may be included. 

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