Originally Posted by zimsy
Both wires coming off my starter are positive correct? Since the body of the starter motor is grounded to the crank case right? I've now have 3 cables going to my positive terminal. 2 from the the solenoid and one from the fuse housing. Now what all needs to be grounded? I know the negative side of my battery should be grounded to the body or similar. What else am I missing? And thank you 5-90 for making me think a little and step back to really look at what was in front of me.
Both are indeed positive. However:
- The larger of the two (OEM 6AWG) is "always hot" - it comes directly from the battery.
- The smaller of the two (OEM 14AWG) is "switched hot" - when you turn the key to START, the starter motor relay is energised, which then powers this lead. That allows the solenoid to pull in, extending the pinion gear, and closing the high-current contacts to power the starter motor proper.
If you don't have an FSM (Factory Service Manual,) get one!
You can score them secondhand off of eBay with a little care for under $50 fairly consistently - and, with a little more work, usually under $25 (I have two shelves full of them at the moment - about a four-foot stack - and I don't think I paid more than $20 for any individual manual. Yep, I'm collecting them...)
A Chilton's is useful, but has holes. Haynes isn't worth bothering with. The FSM is what the Dealer techs use, and if it doesn't tell you what's going in, it's because of a change in equipment by a previous owner...