Underdrive pulley is killing me..
04-29-2007, 07:07 PM
#1
Underdrive pulley is killing me.. Underdrive pulley has always killed me i really dont drive the car much due to gas prices and such but today i decided to fire it up did a oil/filter change last night and when its cold idling (going up and down) the lights dim and flicker and @ idle its like 10-11 volts the battery is a brand new red top.. what todo? maybe a alt pulley or what?
04-29-2007, 07:32 PM
#3
Originally Posted by sunsetta
On an A4 car, you really should have the Alternator overdrive pulley. Thunder Racing has them for about $25-$30.
http://thunderracing.com/catalog/?ac...vid=4&pcid=111
04-30-2007, 12:21 AM
#6
Originally Posted by mthegodfather
Get the altenator pulley and corresponding belt. Just call Thunderracing if you aren't sure about belt size.
04-30-2007, 11:08 AM
#7
If you wanna ghetto measure a belt size, take a piece of string and run it where your pulley goes. Make sure it is in line (i.e. in the same groove on each accessory). Tie it or mark it and measure, there is your belt length.
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05-01-2007, 09:31 PM
#9
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Hey man I feel your pain. I have a 1994 Formula w/ an A4. I just put on an u/d pulley and I'm having the same problem. @ an idle I'm charging at 10-11 volts and as soon as i give it gas it goes up to 13-14 volts. I'll be getting the o/d alt. pulley in a few weeks so hopefully it'll help I'll let you know if you pm me in a few weeks. Good luck!
i wish my u/d had markings of a company name.. isnt there only like 2-3 kinds for the lt1? 