 Alternater Issues, Can't seem to figure it out..... |
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| martinef1963 |
 Jul 15 2005, 09:43 AM
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The Saga Continues...  Group: Members Posts: 320 Joined: 9-November 04 From: Miami, FL, USA Member No.: 3,080 Region Association: South East States  |
Hey Gurus - just wanted to see if I can get some ideas on how to isolate a little apternator issues.
1st symptoms dead battery (bought new one, two to be exact) R&R. Battery kept running down, so I put a voltage meter to test the battery/charging system. It was spiking all over the place - up to 19 volts. Bought two voltage regulators and R&R the old one. Still have spiking problems, so Removed the alternator that I just bought (Bosch) and had it tested @ the auto parts store - runs perfect - 14 volts. Did I mention that my alterator wires are new - from Bowlsby. Now I've put it back toegether - it's running as I type, but the idiot light is still on!! (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif) Does anyone have any ideas on what could be causing the battery from going dead, and the voltage spiking all over the place? It is an electrical gremlin, but I can't find that sucker. i've attached a picture of my girl - thanks |
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| Dave_Darling |
Jul 15 2005, 11:55 AM
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914 Idiot Group: Members Posts: 15,161 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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The light is completely removed from the circuit if you don't plug the alternator into the relay board. So not having the light on won't tell you squat. You need to measure the voltage at the battery posts themselves.
Very good point on the fuse; check fuse #8 or #9 (I never remember which one). Pull it out and check it over; the fuses can seem fine at first look but actually be popped. --DD |
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Posts in this topic
martinef1963 Alternater Issues Jul 15 2005, 09:43 AM
! Hmmm, wierd. I assume that you have checked for co... Jul 15 2005, 09:47 AM McMark Sometimes the studs on the back of the rebuilt alt... Jul 15 2005, 09:49 AM martinef1963 Manfred - that girl is sporting a serious rack - I... Jul 15 2005, 09:54 AM Dave_Darling The "idiot light" is the way that the alternator "... Jul 15 2005, 10:45 AM MarkG REAL long shot here, but whenever I blew the fuse ... Jul 15 2005, 10:54 AM martinef1963 Okay - I made it back, but definitely have a probl... Jul 15 2005, 11:16 AM DipShit You may need to polorize the alternator to get it... Jul 15 2005, 11:20 AM martinef1963 Okay - I'm back. Plugged the wires directly i... Jul 15 2005, 11:45 AM martinef1963 almost forgot - can I run the wires directly to th... Jul 15 2005, 11:46 AM ! At rest a fully charged battery should be 12.5-12.... Jul 15 2005, 11:48 AM ! BTW...you only need a relay board if you have FI..... Jul 15 2005, 11:49 AM Mueller no relay board on my car, so I ran a wire from the... Jul 15 2005, 12:16 PM martinef1963 Okay - I checked the voltage reading on another ba... Jul 15 2005, 03:13 PM martinef1963 PS - how do you polorize an altenator? Jul 15 2005, 03:13 PM Mueller how old are your battery cables? did you clean the... Jul 15 2005, 03:18 PM martinef1963 Brand new cables - I like to R&R (taking out the o... Jul 15 2005, 03:21 PM Dave_Darling http://www.914world.com/bbs... Jul 17 2005, 12:16 PM |
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