gen light dim to bright red (searched) - Team Camaro Tech
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post #1 of 4 (permalink) Old Jun 22nd, 10, 06:06 PM Thread Starter
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Brian
 
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gen light dim to bright red (searched)

So, we're having a problem with my dads camaro. Drives fine, has no issues, and no charging issues...BUT...the gen light came on a lil' while ago, but it was really really dim so much so that i in the passenger seat couldn't really tell and i thought my dad was seeing things. Now today, it's bright red and definitely stands out, so my dad is worried something is wrong...

things we have done and that are new, are the alternator, just replaced the connector to the alternator, even though it doesn't seem to be the best fit, it's better than the one it was on before...

it has a new voltage regulator sitting over on the driver side core support, and has a new condensor. While those didn't look bad to begin with, we had replaced those a while back just for the hell of it and it was cheap anyways.

I checked voltage at the battery, 12 volts, voltage at the wires going into the alternator, is 11.25 or so. None of the fuses seem to be blown under the dash, they looked fine but some were pointed different so it was hard to see all of them.

I did notice that the alternator does have a stud on the back to place a ground on it...and we don't have one...but it's always been that way...so i don't think thats really of any concern...especially since the GEN light wasn't always on until a lil' while ago.

What do you guys think..? TIA, Brian.

Brian
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post #2 of 4 (permalink) Old Jun 22nd, 10, 06:47 PM
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Re: gen light dim to bright red (searched)

With ihmmeter function selected of multimemter, check the vr chassis has less than 1 ohm resistnce from vr chassis to alt case and battery neg post. If not, add star washer between vr reg to rad support, as '69 vr;'s are hard mounted to rad support.

If vr is mounted on rubber isolators, add ground strap about one bolt from chassis to rad support for ground. Do the same to alt case to battery neg post, less than 1 ohm resistance. Ground wire on stud not required as case is grounded throught mounting bracketry, hopefully. No paint between them, case & brackets to block.

Might check belt tightness also. New belt needed? You're already there.

Start engine and measure from alt BAT stud to battery pos post, should be less than 0.3 volts difference. If more, then check pos cable pigtail to junction block and red wires to horn relay buss bar - might wire brush everything and reconnect.

Once up and running at high idle for about 15 minutes, vr should be hot. If temp at vr is 120įF, charge voltage at battery posts should be no less than 13.8 volts, no accessories on, just ignition on. If not, replace mech regulator with electronic regulator, Wells/Duralast P/N VR715 for about $20. Plug and play, but ground circuit needed as before.

If you want to adjust mech VR, remove cover straight off, don't touch the sides, and lengthen the spring on the side of relay to increase voltage, not much, alittle adjustment goes a long way. Replace cover, and let it heat up again and measure at battery posts, 1500 rpm, 13.5-14 volts. As you add loads, ie, lights, blower, wipers, voltage will far off, normal event. rev up engine and voltage climbs. Normal action.

On these older designs, the current demanded was handled by the alt until it is maxed out, then battery helped. Run on the highway, battery got recharged some. Battery takes longer to recharge than it does to discharge.

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post #3 of 4 (permalink) Old Jun 24th, 10, 01:20 PM Thread Starter
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Brian
 
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Re: gen light dim to bright red (searched)

we'll have to do that when we get around to the camaro again...right now dropping a new flexplate on moms yukon...FUN STUFF...thanks for the help!!

Brian
MY RIDE

01 S10 Xtreme 2/3 drop, BUILT 4.3L v6, 5spd
DADS RIDE
69 Camaro 500+ hp 355, t400, currie ford 9inch 4.56 gears, 100 shot
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post #4 of 4 (permalink) Old Jul 3rd, 10, 04:14 PM Thread Starter
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Brian
 
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Re: gen light dim to bright red (searched)

so today my dad's camaro wouldn't turn over after just simply heading to autozone to get a fuel pressure tester for my own truck...haven't got around to messing with dads car because my bro and his family made a surprise visit up here...which is really cool...

but anyways...bro and i took it to autozone, started up fine before leaving the house...as we were leaving, tried to turn the key over, and nothing. not even a click. so i was like okay somethings wrong w/ the starter or the ignition switch or this gen light has something electrical draining down the battery and the battery is too low...tried hitting the starter nothing, tried moving the steering column a couple times, nothing...tried checking the volts on the battery with a volt meter and it wouldn't read anything, and the wires on the volt meter itself got instantly smoking hot and burned my hand...

tried to crank it over, and it slowly cranked..like it barely had any juice...

so my dad came and we jumped it, started right up...

also, my dad drove it back home with me following him...my bro drove with him, dad showed off a lil bit, and said he thinks he should have hit the rev limiter...and it didn't do anything or ping or something like it should when you hit the rev limiter...what do ya guys think?!?!

Brian
MY RIDE

01 S10 Xtreme 2/3 drop, BUILT 4.3L v6, 5spd
DADS RIDE
69 Camaro 500+ hp 355, t400, currie ford 9inch 4.56 gears, 100 shot
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