MaxGlide
Petty Officer 2nd Class
- Joined
- Aug 20, 2020
- Messages
- 178
1977 Mercruiser 140, 42amp alternator
Replacing a blown alternator and want to make sure it wasn’t because I wired it wrong putting motor back together.
Main question I have is from alternator to switch to starter.
Do I run the charging wire from the alternator to the “both” post on the switch, then run a wire from “both” post to the starter?
ORRR…
Do I run the wire from the alternator to the starter, then another wire from starter to the “both” post? (That’s how it was.)
Essentially pic one or two?
Also, what gauge wire should I be running from the batteries at the back, to the DC panel up front, about 16 feet?
Replacing a blown alternator and want to make sure it wasn’t because I wired it wrong putting motor back together.
Main question I have is from alternator to switch to starter.
Do I run the charging wire from the alternator to the “both” post on the switch, then run a wire from “both” post to the starter?
ORRR…
Do I run the wire from the alternator to the starter, then another wire from starter to the “both” post? (That’s how it was.)
Essentially pic one or two?
Also, what gauge wire should I be running from the batteries at the back, to the DC panel up front, about 16 feet?