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  1. #1
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    Easiest way to use ddt on engine off boat

    Picked up a Rinda DDT and it works well however I have 5 or 6 engines on stands that I would like to verify hours before I sell them . Question, what is the best / easiest/ safest method to power up an engine in order for the DDT to operate ?

    Thanks
    Larry

  2. #2
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    I have done compression test on a pallet, by hooking battery cables up, and plugging in mercury control box with integrated ignition switch. Probably easier ways, like powering up the purple wire in engine harness.

  3. #3
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    exactly what im avoiding to do

  4. #4
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    About 2 minutes to remove cowl, hook jumper cables, and engine harness to remote control harness. All while your laptop is booting up.

  5. #5
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    no booting up , have hand held ddt
    Thanks

  6. #6
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    I'm guessing your just looking for ignition power? If you want something that fits in your pocket, here you go.
    12.6v 3 cell 2200mah lipo battery.
    2 deans connectors.
    1 bullet connector for purple wire in cannon connector.
    1 alligator clip for ground.
    A little elbow grease, 3' wire, solder, and iron.
    Click image for larger version. 

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  7. #7
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    Thank you very much , your very smart guy indeed . I was thinking more on something like this , I have **** load extra harnesses so I cut one to say 10 ft , plug into engine , grab the purple and the ground hook up 12 v lawn tractor battery and done ? Will that work ? Only concern I have is say the positive had loose connection could maybe spike the ecu ?

    Thanks

  8. #8
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    I think smart is a overstatement maybe persistent.
    That would work great if you have a doner harness. A jump box would also work.
    You get a little arcing on the big jobs. Just try to keep it isolated to ground on engine block.

  9. #9
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    so dont use a ground in the harness ? Just use the purple out of harness and run that to positive and separate ground from battery to block ?

  10. #10
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    You could use ground in harness, or not. I just wouldn't recommend arcing your harness plug or battery. Probably not a big deal, unless your battery explodes in your face. You could put a switch, or sacrificial plug in one of the wires, or use a alligator clip to block for ground.

  11. #11
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    thank you

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