Testing my starter/ generator. Check these numbers

Ronman · 08-31-2016, 08:58 PM

Trying to verify my s/g is working properly. Wouldn't start due to low battery.

I found the get a reading at battery with key off and reading at mid throttle instructions.

When I test with key off I get 12.74. When I turn on the key it drops to 12.46. At mid throttle it goes between 12.48 to 12.50. Turn the key off and I have 12.74. The only thing drawing power with key on is the gas gauge. Headlights are next click. I understood I would be 14+ at mid throttle. Or did I misunderstand?

Golf cart guy · 09-01-2016, 07:00 AM

Meter on the battery running you get 12.48-12.50- your battery is not being charged. Rare for a starter to fail, chances are voltage regulator. Ground the DF wire and see if the voltage soars at the battery. If so, starter good, voltage regulator bad

Ronman · 09-01-2016, 08:29 AM

in my mind this should suffice, but correct me if I'm wrong. Since I was home for a few minutes but in my work clothes I could get get in and dirty.

So I took the only thing I could find with alligator clip being my test light and connected to DF. At least what I think is the DF. The stud on the back side of the starter. I then took a reading prior to hitting the accelerator. I then took a reading with engine at idle with the test light on negative post. I noticed the light light up and my voltage climbs slowly as I accelerate but never gets passed 12.5.

Ronman · 09-01-2016, 10:03 AM

Scratch that.

I got another wire and used the test light alligator clip to hold it. Now my voltage shoots past 16 and climbing.

Ronman · 09-02-2016, 06:05 PM

New VR=14.6v�� at mid throttle.

Golf cart guy · 09-02-2016, 07:53 PM

Boom!

08-31-2016, 08:58 PM	#1
Ronman Getting Wild Join Date: Mar 2008 Posts: 145	Testing my starter/ generator. Check these numbers Trying to verify my s/g is working properly. Wouldn't start due to low battery. I found the get a reading at battery with key off and reading at mid throttle instructions. When I test with key off I get 12.74. When I turn on the key it drops to 12.46. At mid throttle it goes between 12.48 to 12.50. Turn the key off and I have 12.74. The only thing drawing power with key on is the gas gauge. Headlights are next click. I understood I would be 14+ at mid throttle. Or did I misunderstand?
Ronman Getting Wild Join Date: Mar 2008 Posts: 145

09-01-2016, 07:00 AM	#2
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: Testing my starter/ generator. Check these numbers Meter on the battery running you get 12.48-12.50- your battery is not being charged. Rare for a starter to fail, chances are voltage regulator. Ground the DF wire and see if the voltage soars at the battery. If so, starter good, voltage regulator bad

09-01-2016, 08:29 AM	#3
Ronman Getting Wild Join Date: Mar 2008 Posts: 145	Re: Testing my starter/ generator. Check these numbers in my mind this should suffice, but correct me if I'm wrong. Since I was home for a few minutes but in my work clothes I could get get in and dirty. So I took the only thing I could find with alligator clip being my test light and connected to DF. At least what I think is the DF. The stud on the back side of the starter. I then took a reading prior to hitting the accelerator. I then took a reading with engine at idle with the test light on negative post. I noticed the light light up and my voltage climbs slowly as I accelerate but never gets passed 12.5.
Ronman Getting Wild Join Date: Mar 2008 Posts: 145

09-01-2016, 10:03 AM	#4
Ronman Getting Wild Join Date: Mar 2008 Posts: 145	Re: Testing my starter/ generator. Check these numbers Scratch that. I got another wire and used the test light alligator clip to hold it. Now my voltage shoots past 16 and climbing.
Ronman Getting Wild Join Date: Mar 2008 Posts: 145

09-02-2016, 06:05 PM	#5
Ronman Getting Wild Join Date: Mar 2008 Posts: 145	Re: Testing my starter/ generator. Check these numbers New VR=14.6v�� at mid throttle.
Ronman Getting Wild Join Date: Mar 2008 Posts: 145

Today
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09-02-2016, 07:53 PM	#6
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: Testing my starter/ generator. Check these numbers Boom!

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