battery isnt charging

65notch

New Member

Jun 18, 2005

303

0

0

661 Cali

Apr 4, 2006

#1

• Apr 4, 2006

• #1

hey guys, i just built a wiring harness for my engine bay and relocated my battery to the trunk.
but my battery isnt charging...i think i have the alt. wired up correctly i have 12.13v at the battery, 12.13v at the starter soleniod and 12.13v at the 'Bat' terminal on the alt. but the volts stay right there, even with RPM change. i startered the car 4 times with just bat. power, no alt. hooked up hince the reason its under 12.6v. the wire i used from the 'bat' terminal on the alt. to the soleniod is 10g. the bat. is a brand new optima red. any suggestions?
thanks guys

 

LUCAFU1

Founding Member

Apr 19, 2001

496

0

16

Tucson

Apr 4, 2006

#2

• Apr 4, 2006

• #2

start prbing at the alt and work your way back. have you checked the regulator?

 

M

mustangdave

My rearend needs a stud and two nuts.

Founding Member

Feb 26, 2002

2,976

1

56

North Carolina

Apr 4, 2006

#3

• Apr 4, 2006

• #3

Yeah, start at the alt. It should be putting out between 13.6 and 14.2 volts. If that's good, check back and we'll throw some more at you.

 

65notch

New Member

Jun 18, 2005

303

0

0

661 Cali

Apr 4, 2006

#4

• Apr 4, 2006

• #4

does anybody have a good diagram of the posts on the alt. the ones i can find dont show me much. i wanna make sure i have it all wired up right. thanks

 

SoCalCruising

Founding Member

Jul 25, 2000

2,437

0

47

SoCal

Apr 4, 2006

#5

• Apr 4, 2006

• #5

Is this a standard 1st generation alternator or a conversion of some type?

 

DarkoStoj

Founding Member

Sep 4, 2002

929

13

39

Detroit

Apr 4, 2006

#6

• Apr 4, 2006

• #6

65notch said:

does anybody have a good diagram of the posts on the alt. the ones i can find dont show me much. i wanna make sure i have it all wired up right. thanks

Click to expand...

http://www.hammar.dyndns.org/~djhamma/wiring.htm

 

65notch

New Member

Jun 18, 2005

303

0

0

661 Cali

Apr 4, 2006

#7

• Apr 4, 2006

• #7

SoCalCruising said:

Is this a standard 1st generation alternator or a conversion of some type?

Click to expand...

1st gen

 

65notch

New Member

Jun 18, 2005

303

0

0

661 Cali

Apr 4, 2006

#8

• Apr 4, 2006

• #8

can anyone label the terminals in this diagram?
http://www.hammar.dyndns.org/~djhamma/wiring/1965/1965c.jpg

 

LUCAFU1

Founding Member

Apr 19, 2001

496

0

16

Tucson

Apr 4, 2006

#9

• Apr 4, 2006

• #9

1 ground 2 power. start the car and just see which one is putting out volts. ohm out to find the ground.

any easy way to check the alt..........start the car with the alt spinning and see if it becomes magnitized on the back. check it with a screw driver.

its only 3 wires and one is a ground so it shouldnt be to hard or long to figure it out. after that head to the voltage regulater. I had one fail way back when i was in h.s. and i opened it up and a wire was burned.

after that is the solinoid i believe and then batt.

im going off memory so i may be off a bit.

 

WORTH

20+ Year Stangneter

Nov 18, 2002

2,166

44

98

Cape Cod, Ma.

Apr 5, 2006

#10

• Apr 5, 2006

• #10

if you unplug the regulator and jump wire #4 to wire# 35 the alternator will go to full charge if everything is wired correctly. If this happens the regulator is NG.