Alternator charger problem

[Gaz64]

Originally Posted by Blas

You have the standard Amp Meter Right?
Switch the wires on the back of the Amp Meter should move negative when fans come on. Disconnect battery when making the wire switch.

And THEN if it still averages more negative, you do have an inadequate charging system versus the demands you are placing on it.

[STEVE-O]

Originally Posted by GT35065

The guy that is helping me suggested converting it back to three wire too. That might be a good option. Then it would be using the regulator that came with the car instead of the one that is in the alternator.

Volt meter reads near the center until you turn on the fans and then it goes about a quarter way towards the plus side. You would think it would go to the negative side with the extra draw on the system.

Be aware that if you switch back to the 3 wire using the cars voltage regulator that there is a wiring change for SPF cars. It involves moving the sense wire on the regulator to prevent overcharging the battery and is indicated by ammeter needle fluttering.

[mikeylikesit]

This has been helpful for me as well...I was wondering why the heck my amp gauge moved to the plus side when I turned my fans on....that just didn't make sense....but then again I am not used to amp gauge....voltage gauge I understand...
Guess I have to reverse the wires...thanks blas....I assume I should be able to change the wires from behind the dash without removing the speedo?
Mike

[Blas]

Depends on your hand size and body contortion abilities to get into the footwell to see what you are doing under the dash with your hand. But Amp meter comes out easily with one knurled nut on back side of dash thru the front of the dash and it's easier to remove the wires because they are twice as big as the normal wire clips and should be very snug when removed and installed. DISCONNECT THE BATTERY FIRST.

Sure helpful if you guys would add your car numbers to your info displayed in the upper right corner of your posts. 4 different wiring configurations on SPF's defendant on chassis number and helps me help you with other tips and tricks.

[mikeylikesit]

Originally Posted by Blas

Depends on your hand size and body contortion abilities to get into the footwell to see what you are doing under the dash with your hand. But Amp meter comes out easily with one knurled nut on back side of dash thru the front of the dash and it's easier to remove the wires because they are twice as big as the normal wire clips and should be very snug when removed and installed. DISCONNECT THE BATTERY FIRST.

Sure helpful if you guys would add your car numbers to your info displayed in the upper right corner of your posts. 4 different wiring configurations on SPF's defendant on chassis number and helps me help you with other tips and tricks.

Thanks Blas, I have tried to edit my info so it shows up in the top right corner of the posts but its not showing....SPF2169 BTW

Mike