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Thread: Replacing a Magneto with a Distributor on a Ground Power Unit

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    N404CX's Avatar
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    Replacing a Magneto with a Distributor on a Ground Power Unit

    What would you think of adapting a small distributor to the magneto shaft on a O-290 G that had been converted for aviation use?

    In it's new use, the benefits of the magneto would no longer be necessary, and the costs of magneto rebuild would be eliminated.

    Also, has anyone had any experience adapting an automotive electronic ignition to the mag drive; again because of cost?

    thanks, -glen

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    Quote Originally Posted by N404CX View Post
    What would you think of adapting a small distributor to the magneto shaft on a O-290 G that had been converted for aviation use?

    In it's new use, the benefits of the magneto would no longer be necessary, and the costs of magneto rebuild would be eliminated.

    Also, has anyone had any experience adapting an automotive electronic ignition to the mag drive; again because of cost?

    thanks, -glen
    This engine has been converted to aviation use? Why would you remove the mag?

    The only reason to use a distributor is for the vacuum advance. No other reason to use one. So if the application calls for an ignition that would need such a unit you will need a distributor. Such as in an auto were you go from slow idle running to partial running without ever going wide open. In a case like this you want a vacuum advance unit. It also helps in starting when you are not using an impulse coupler.

    I like a mag over any electronic unit. Electronics just fail without warning. Anything using points and condenser you get a warning when things start going bad.

    1600vw
    Last edited by 1600vw; 06-10-2016 at 04:19 PM.

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    Quote Originally Posted by N404CX View Post
    Also, has anyone had any experience adapting an automotive electronic ignition to the mag drive?
    Have never done it. Some machining will be required; any reason to use my lathe is usually a worthy project.

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