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Garden Tractors Discussion Forum

briggs vanguard wiring question

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sgtbull

08-06-2007 10:07:49




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I'm working on a Simplicity mower. I've gutted the wiring and have started over. Everything seems to work fine except I have a very tiny battery drain. It appears to be feeding through the charging system. I currently have the wire coming from the voltage regulator (at leaset what I presume to be a voltage regulator.. it has a cast resin of some sort in it and is mounted to the side of the engine), going to the postitive side of the starter solenoid. I don't have an ammeter in the circuit, simply because I didn't have one handy...If I disconnect that wire from the solenoid post, I show a trickle of current between the wire and the post on my test meter. Is that correct, or does that mean there is a ground in the charging system that should not be there? IF that is not abnormal, should there be a diode in the circuit to prevent the reverse flow of electricity? I'm nearly already bald, but this is starting to turn what's left GRAY!... thanks in advance.

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Kent of SWMO

08-06-2007 11:36:53




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 Re: briggs vanguard wiring question in reply to sgtbull, 08-06-2007 10:07:49  
If you will check the ignition switch, most have a pin with 12 volt on it when the switch is on. If you will connect the output of the regulator, thru a fuse, to this terminal there will be drain when the switch is off. you need the fuse to protect the regulator and Stator if someone mistakenly hooks up the battery backwards.

Kent



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Bob

08-06-2007 10:29:26




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 Re: briggs vanguard wiring question in reply to sgtbull, 08-06-2007 10:07:49  
There should NOT be a diode needed with that regulator.

The rectifier/regulator seems to be faulty.

On many applications, the red wire from the regulator runs though the ignition switch "R" terminal, which disconnects the regulator from the battery when the key is "off", preventing any discharge through the rectifier/regulator.

Your options are to try another regulator, or get your's connected so it's disconnected by the switch when "off".

Putting a diode in series with the regulated output would drop the voltage sent to the battery by the forward voltage drop of the diode, about 0.6 Volts.

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