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  1. nola mike

    Perfectly for 15 minutes then, surging, knocking, and jumping tac

    ? Intermittent flashes mean intermittent spark. Definitely a problem. See if you can tell if you're erratic with the light on the coil wire. If not, your problem is with the cap/rotor/wires. If so you have another problem. Agree though that if the flashing is the same regardless of symptoms then...
  2. nola mike

    Boat swamped, let's see if we can get it running...

    So I rechecked the timing, and it seemed that every time I set it, it was off again when I rechecked it. It was 40' advanced at 1 point, then I couldn't find where it was when I was trying to check advance at 2k rpm... So thought I got it, went out with 2 adults, 3 kids. Seemed sluggish out of...
  3. nola mike

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    1. Have you tried disconnecting all batteries except engine batteries? 2. Have you been able to get screenshots of the voltages when the fault isn't present? 3. Was this problem there on the sea trial or did it show up after you got the boat?
  4. nola mike

    Hard starts after sitting for a week or so

    I thinklutely! It was sitting in the driveway for a week. I think spec is ⅛"or so. But whatever works best for you. Mine doesn't need much if any choke in the 90' weather that I'm usually in, so I dial in a bit more so that it will open fully earlier
  5. nola mike

    Crank, no spark. Need advice.

    Didn't sound like that's where the troubleshooting led... You never got a spark by tapping the wire or from that last post you don't perform the test correctly.
  6. nola mike

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Also noticed that on the engine data ignition voltage is > battery voltage?
  7. nola mike

    Oil Pressure Switch for Fuel Pump - Strange Happenings

    Op switch shouldn't affect cranking. Try wiggling the throttle while you crank (possible neutral safety switch). Next measure voltage at the small yellow/red wire on the starter solenoid while trying to crank... Rather than reinvent the wheel, go through this guide...
  8. nola mike

    Shift interrupter switch.

    There are a ton of module part numbers that I found, though don't see them broken down by outdrive. Same with wiring diagrams. Which ones are you looking at? And green still shouldn't be grounded, should be the same just without the SIS leg, only from module to distributor.
  9. nola mike

    Perfectly for 15 minutes then, surging, knocking, and jumping tac

    And 7
  10. nola mike

    Shift interrupter switch.

    The shift interrupt with the TB ignitions works essentially the same as it does with points. The green/wht is the trigger wire from the sensor. When running, the sensor is sending a pulsed signal based on the speed of the rotor. The ignition module then sends a pulsed ground to the coil. When...
  11. nola mike

    1999 Mercruiser 5.0 L 8 Cylinder not engaging

    Welcome. Sounds like you grenaded your outdrive. Drain the gear oil, look for chunks of metal. Remove the cap at the top of the outdrive to get a look at your upper gears. Could be the coupler also; see if the shaft coming from the engine turns when you turn the prop. BTW, '99 should have a gen...
  12. nola mike

    help with iffy gas?

    Regular gas can't hold any water. So once you suck out the water on the bottom, there's nothing left. Well, the lower octane makes it easier to pre detonate and grenade your engine, so there's that. Don't want to go too low.
  13. nola mike

    Shift interrupter switch.

    What exactly is the issue you're having? Sounds like the switch is closing correctly? The green/wht wire should be grounded when the switch is closed. You can check and see if the wire is grounded at the distributor when you close the switch.
  14. nola mike

    help with iffy gas?

    So just did a little research and math... The blending octane level of pure ethanol is around 110. So losing all the ethanol in AKI 87 E10 would give you an AKI of 84-85. Probably still fine for a lot of low performance applications, but certainly fine if you mix in some premium, or enough regular.
  15. nola mike

    help with iffy gas?

    I agree with @dingbat on this one. There isn't any chemical reaction with the hydrocarbons, the ethanol precipitates out with the water. Possible some of the detergents come out as well. Theoretically you could measure the ethanol and replace, but... Easier to dilute with fresh gas and run it...
  16. nola mike

    Perfectly for 15 minutes then, surging, knocking, and jumping tac

    It might be grounding out your ignition causing the symptoms. Sounds electric to me, and I think you need to chase TKS wiring rather than the carb itself. As I frequently recommend, and nobody ever tries, is to put a timing light on there while you're having issues. It will show an erratic spark...
  17. nola mike

    Perfectly for 15 minutes then, surging, knocking, and jumping tac

    Disconnect the tach wire first, but Guessing you have a problem in your TKS system, if that's what you have. Temp switch closes, goofy things begin.
  18. nola mike

    Shift interrupter switch.

    Seems like a bad idea. You wouldn't be disabling the module, which will be trying to switch against voltage spikes at the coil
  19. nola mike

    Shift interrupter switch.

    nks Chris! I’ll get the serial number. Super simple. The switch just grounds the grn/wht wire to the block. That's it.
  20. nola mike

    Alpha 1 Gen 2 Upper Seal Issue?

    Probably trying to get it perfect before he rushes to production. Please start your own thread...
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