My Son swaped a bone yard 85 camaro 2.8v6 into an 86 Firebird.
> Runs great for about 10 20 miniutes, untill volts drop down, down down
> till she runs out of battery!
> New Battery- New Alt (bench tested at 15V twice)
> Voltmeter on dash says it starts up at 12V.
> Battery checks the same 12V
> Big terminal on Alt check same 12V
>
> All three points check the same readings, even as the volts start
> droping down to about 7-8 volts. As it goes down you have about
> 2minites to compair & check points till she's dead.
>
> Charge Batt & away we go again for another 10-20 minites
>
> Checked & cleaned as many ground wires were accessable. Big one on
> front of engine - back one by firewall - one big gouping connected to
> the back of the head we could not really get at, but we just put them
> on when installing the engine.
>
> Checked terminals at starter R & S + big positive cable.
>
> Got us stumped why the voltage reg wont kick in when on the vehicle.
> On the bench - no problem!
>
> Where to look now?
>
> Thanks in advance!
> Gil
Any Help here?
Thanks
Gil