Engine help

[CDHC]

Engine help

Merc 230 HP inboard with Thunderbolt ignition - engine turns over and not getting any spark - replaced distributor cap, rotor, ignition sensor and coil and still not getting any spark.

 

Before I get a marine mechanic involved any ideas what else to check?

 

 Thanks 

[jnfarrier]

Points or ignition module in the distributor?


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[Rusty]

Coil could be bad


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[CDHC]

Inginition module

[L&M]

You probably already have but make sure you have power to the purple / + side of the coil both static with the switch on & when your turning it over. Also check the main engine harness plug for corrosion. 

[on the lam]

Word ^^^^^^^

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[Bozeman Bob]

Check the shift interrupter switch to see if its stuck in the closed position, if its a I/O. Usually located on the secondary shift cable above the outdrive. I believe you can disarm [ to see if its the issue ] it by following one wire to coil and removing it. If it is the "pointer" , it can be adjusted so its not always engaged.

Edited June 2, 2017 by Bozeman Bob

[Fishmedic]

Check driver safety switch if so equipped.

[RSF]

Depending on the engine year/OEM..for the few dollars and an hour of time Re&Re the magnetic pick-up inside the distributor cap.