tendoshingan
|
| posted on 4/1/09 at 10:49 PM |
|
|
Another alternator light problem
Hi folks,
I've looked into as many of the posts about this as I can and I am still none the wiser as to why my light will not go out.
Basically I have the ford alternator with the three connections, W, B+, D+.
I have wired up B+ to the battery.
I have wired up D+ to one side of the ignition light (etb light) and the other side to switched live. (I have also used a standard bulb)
W is not being used.
When it starts the light comes on but does not go out, even after revving the engine to over 4000 rpm, it just gets brighter.
I have measured the voltage on the battery, it is around 13v at idle and over 14.5v when revving.
I have also measured the voltage across D+ to the ignition light. It is around 6v.
W is also 6v.
I know that it should be around 12v, is my alternator dead?
Any ideas ???
Cheers
|
|
|
|
|
Dingz
|
| posted on 4/1/09 at 11:48 PM |
|
|
If you get 14.5v at revs then the alternator is fine, the problem is how you have the bulb wired in but it is too late for my brain to figure it out!
effectively it should end up with 12v+ on both sides of the bulb so there is no flow through it when charging.
|
|
|
t16turbotone
|
| posted on 5/1/09 at 07:50 AM |
|
|
yep B+ goes to battery positive, W is for rev counter or glow plug relay(diesel), and D+ should be connected to ignition lamp(12v 1/4 watt) . If you
have used rubber mountings on alternator, fit earthing lead to alternator casing .
|
|
|
