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Quick Alternator Wiring Question

Webb

Senior Member
Offline
On my alternator, I have a red wire, pretty heavy gauge, which I actually think is supposed to be brown judging by the book. Where does this wire go? The schematic shows it running into 3 horizontal lines, gradually getting smaller. Is this the grounding symbol? I just really don't want to toast my electrical system when I run oil pressure up in this engine for the first time.
 

TR3driver

Great Pumpkin - R.I.P
Offline
That is the ground symbol. Should be a black wire, not brown.

However, double check that you actually have a 5-terminal alternator as shown in the diagram. Virtually all of them have been replaced with the later 3-terminal alternators, that do not have a separate ground wire.
 
OP
Webb

Webb

Senior Member
Offline
Yes, there are 5 total terminals on the back of my alternator, 2 of which are bigger. And you're right, it is supposed to be a black wire. I didn't look closely. So I guess I can just ground it anywhere on the engine block?
 

TR3driver

Great Pumpkin - R.I.P
Offline
Webb said:
So I guess I can just ground it anywhere on the engine block?
Yup, should work.
 
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