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Begin forwarded message:
From: Gary Orloff <gerayorloff@icloud.com>
Date: February 26, 2020 at 6:40:49 AM EST
To: “Antique Outboard Motor Club,Inc” <noreply@aomci.org>
Subject: Re: [Antique Outboard Motor Club,Inc] Scott McCulloch 25
Hi Frank,
I’m starting to get out of my comfort zone when trying to figure out how this system works electrical wise ! I understand charging systems and how they work with the coils and a rectifier, but if a charging system has no load why would if burn anything out ? A rectifier is just a set of (usually) 4 diodes arranged to allow the positive and negative pulses (AC) from the coils to only go in one direction i.e. DC current. So doesn’t an alternator or even a generator only produce enough power to carry the load connected to it, the more load you put on it the more energy it takes to turn it ?
Without a battery in the system the alternator has to be what is powering the ignition system, and if we disconnect one yellow wire from both the ballast resister and the rectifier wouldn’t that cut the power produced in half ???
On Feb 25, 2020, at 8:02 PM, Antique Outboard Motor Club,Inc <noreply@aomci.org> wrote:
frankr wrote:
Well If that is true, I find it interesting that you can rope start it with a dead battery or no battery.. Possibly with a battery that is too low to run the starter. But it is almost universal that running with no battery may blow a rectifier. That’s because running on open circuit causes the alternator voltage to rise above what the rectifier can withstand.
Anxious to see how this turns out.
Post Link: https://aomci.org/forums/topic/scott-mcculloch-25/#post-195875
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