Recent content by seadog brian

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    3.0 weak spark

    Mercruiser 3.0 0W603096 Yellow, weak spark from coil wire, no spark at plugs. All new ignition parts-cap, rotor, plugs, wires, ignition module, pick up coil, and coil. Have measured 12.4V on purple wire to coil, and the same at distributor. Spark is so weak my timing light wont trigger. HELP
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    3.0l oil drain hose leak

    How do I remove swivel drain fitting with engine in boat? Cannot see, and can't find pictures to see what to turn. I seem to fell a tab or something very close to the flats. May be preventing me from getting wrench on fitting. Any pics. or suggestions appreciated.
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    Thunderbolt IV ignition module needed

    Working on a 1994 350 magnum, Ser. # 0F131944. Ignition module has V8-24S on it, but not sure if it has not been changed in the past. What is the correct replacement part no., and where can I avoid paying $500 for one? Thanks for the help in advance
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    Weak yellow spark

    Mercruiser 1994 MCM 350 magnum 0F131944 First post, but have been looking for answers here for a month or two. Have followed the TBIV troubleshooting chart, and have changed plugs, coil, wires, rotor, cap, ignition sensor under rotor, and still have a weak yellow spark. Engine will try to...
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