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General => General discussion => Topic started by: Dis00 on 25 October 2005, 23:26

Title: diming lights
Post by: Dis00 on 25 October 2005, 23:26

hi folks

got a little problem(well its not really a problem) when i turn up my music my headlights dim in time with  the bass does anyone have any ideas of how to stop this as its a little irritating

cheers Deano

Title: Re: diming lights
Post by: Rain on 25 October 2005, 23:27

either your battery and alternator arent upto it or you have a bad earth somewhere, what exactly are you running in regards to amps etc...

Title: Re: diming lights
Post by: Dis00 on 25 October 2005, 23:30

running 2 amps that are 90watts per channel powering one sub and a set of comps

Title: Re: diming lights
Post by: Rain on 25 October 2005, 23:36

should be ok really might be a sign your battery isnt liking it or maybe on its way out, i doubt its that though do any of lights flicker ie dash or rear lights?? if they dont then it could be just old wiring on the lights.

Title: Re: diming lights
Post by: Dis00 on 25 October 2005, 23:40

the interior light dims quite a bit havent checked the rear lights but will

Title: Re: diming lights
Post by: Rain on 25 October 2005, 23:56

seems like your amps etc is drawing to much current only thing i can think off is to test you battery and alternator with a multimeter if you own one.

a good battery would be 12.8Volts + when not in use
a good alternator would give out 13.5+ volts ideally 14volts.(test this with the multimeter across the battery with engine running)

Title: Re: diming lights
Post by: [han] on 26 October 2005, 07:26

if you play your setup with your interior light on, does that flicker too? if so you i'd recommend a cpacitator... sorry its the comp i work for but i know they do them.. just a suggestion!  :smiley:

im not a car genius  :rolleyes: :laugh:

Title: Re: diming lights
Post by: RYoungMK1GTI on 26 October 2005, 10:26

take your subs out. too much weight ne way.

Title: Re: diming lights
Post by: Organisys on 26 October 2005, 13:37

Check / clean the alternator brushes

Title: Re: diming lights
Post by: Bazzer on 26 October 2005, 13:41

Quote from: Organisys on 26 October 2005, 13:37

Check / clean the alternator brushes

Yeah wot he said. Should only cost about a tenner to replace the 'brush pack'... Easy too....  :smiley:

Title: Re: diming lights
Post by: Dis00 on 26 October 2005, 15:28

whats the brush pack

would a pharad thing work if thats what they are called

Title: Re: diming lights
Post by: j_s on 26 October 2005, 15:35

Replace/Add thicker cable from Alternator to Battery (4g or even 2g if you can) also Battery earth cable and engine earth cable, you should see an improvement, most people that replace this tend to see significant reduction. If it still does it then a more powerful battery.
I don't bother with powercaps, i'm using one of these instead  :grin:
http://www.caraudiodirect.co.uk/product_info.php?products_id=3720&cadid=8a2f7f4dbcb13532b67646365a3ee607
Much much better than any piece of rubbish powercap, no offence everyone but they are a waste of time.

Title: Re: diming lights
Post by: Bazzer on 26 October 2005, 16:07

Quote from: Dis00 on 26 October 2005, 15:28

whats the brush pack

It's a part on the alternator that transfers the current from the rotating part to the output. They wear out and can be renewed...