SailNet Community - View Single Post - Help Volvo MD5A idiot light wiring
View Single Post
post #4 of Old 12-25-2012
Senior Member
Join Date: Sep 2006
Location: Scotland
Posts: 2,365
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 11
Re: Help Volvo MD5A idiot light wiring


The thick red wire is the power delivery to the battery.... it is a positive lead.
I am puzzled as to why the white lead goes nowhere, but the black and white leads look very much like the field excitation leads for the alternator rotor.
There will be a regulator somewhere too, perhaps on the other end of that black lead.

Tell me, when the motor is started and revved up to (say) 2000 rpm, what is the voltage across the battery leads? It should be about 14 V, perhaps a bit higher.
Rockter is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome