 Yet another alternator question |
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| ThePaintedMan |
 Jul 11 2018, 08:36 AM
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Advanced Member  Group: Members Posts: 3,887 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States 
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Sorry for asking one that I'm sure has been answered before. Searched but couldn't find a thread that sounded quite like my issue. Getting ready for a track day next week, and of course having charging issues. Typically I see the alt light come on with ignition on, but it shuts off as soon as I start the car. Occasionally it does come on when I turn the ignition on, but the next time it doesn't. Now, it doesn't come on when the ignition is on or when it's running. I suspect it isn't charging regardless because I see 12.2 volts with the car off and about the same while it's running. The car has been sitting but it was charging prior to this and it was covered with one of Perry's excellent covers. I wonder if the brushes are bad, but I think it sounds more like a bad relay board.
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| TheCabinetmaker |
Jul 11 2018, 10:37 AM
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I drive my car everyday Group: Members Posts: 8,338 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Alternators don't have brushes. Check the bulb for the light. It's part of the charging system. Won't charge without it.
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| worn |
Jul 11 2018, 06:18 PM
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,488 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(The Cabinetmaker @ Jul 11 2018, 08:37 AM)  Alternators don't have brushes. Check the bulb for the light. It's part of the charging system. Won't charge without it. They do have brushes. That doesn’t mean they are bad though. |
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| porschetub |
Jul 11 2018, 11:55 PM
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#4
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Advanced Member Group: Members Posts: 4,869 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(worn @ Jul 12 2018, 12:18 PM) QUOTE(The Cabinetmaker @ Jul 11 2018, 08:37 AM) Alternators don't have brushes. Check the bulb for the light. It's part of the charging system. Won't charge without it. They do have brushes. That doesn’t mean they are bad though. (IMG:style_emoticons/default/agree.gif) strange reply,yep the light might be working but that has no indication the battery is getting any more juice under load...ask me how I know,mine go's off and has no issue with engine running except appears to be reading no more that battery power under load/rpm....PITA to remove in a six after I had it rebuilt,why???. |
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Posts in this topic
ThePaintedMan Yet another alternator question Jul 11 2018, 08:36 AM
dr914@autoatlanta.com relay boards do not go bad that often, and have no... Jul 11 2018, 02:33 PM
worn
relay boards do not go bad that often, and have n... Jul 11 2018, 06:16 PM Edward Blume I had my alternator fully rebuilt and it turned ou... Jul 11 2018, 05:29 PM Dave_Darling If the regulator is unplugged, I know the alternat... Jul 11 2018, 11:20 PM Spoke Below is the schematic of the alternator/battery/V... Jul 12 2018, 05:00 AM ThePaintedMan Thanks guys! Man, when Spoke starts commenting... Jul 12 2018, 06:03 AM Elliot Cannon Wow! What an informative thread. So far I ha... Jul 12 2018, 02:36 PM ThePaintedMan After cleaning every bulb and connection in the ga... Jul 12 2018, 08:43 PM |
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