Under Hood Fuse Block Terminals

[Bca8ball]

The fuse panel/block under the hood has one black terminal and two red terminals.

The layout left to right is (Black) (Red) (Red).

I have a few questions about these terminals.

1) Is the black terminal suitable for a long term/permanent ground?

2) The far right red terminal is hot; is the center red terminal simply for the strip fuse between the red terminals i.e. to protect incoming power?

3) My magnavolt and intercooler relay use the far right red and I currently have the magnavolt and intercooler relay grounds connected to the black terminal.
Is it safe to keep them there?

4) How about an emergency or accessory 12v light, a connection point for aftermarket,s or electric jack connection point... or should one just leave these terminals alone?

[Mike in AZ]

Originally Posted by Bca8ball

The fuse panel/block under the hood has one black terminal and two red terminals.

The layout left to right is (Black) (Red) (Red).

I have a few questions about these terminals.

1) Is the black terminal suitable for a long term/permanent ground?

2) The far right red terminal is hot; is the center red terminal simply for the strip fuse between the red terminals i.e. to protect incoming power?

3) My magnavolt and intercooler relay use the far right red and I currently have the magnavolt and intercooler relay grounds connected to the black terminal.
Is it safe to keep them there?

4) How about an emergency or accessory 12v light, a connection point for aftermarket,s or electric jack connection point... or should one just leave these terminals alone?

The power distribution / fuse block under the hood has three connections on the forward edge.

The outboard connection (closest to the fender) is the "power input" feed from the battery. It comes from the red jumper box on the inner fender on the passenger side. This is often used to tap off power for stuff. If you are pulling power off of this terminal, you MUST have an in-line fuse to protect the wire to whatever is out there. You have the ability to arc weld from this one.....

The middle connection is the outgoing feed to the aft fuse block, behind the passenger seat, inside the waterfall. It is connected to the outboard terminal with a 125 amp fuse to protect the wire from the underwood fuse block to the cabin fuse block. This is not a good place to draw power for any accessories.

The inboard connection on the forward side of the fuse block is NOT a ground. This is the power source for the main cooling fan. It is fused by a 60 amp slow-blow fuse just inside the fuse block, nearest the 6mm terminal. Connecting any accessories to this needs to have an in-line fuse, just like the outboard terminal. Be mindful of the power consumption of anything you connect, as the main fan draws 27 amps continuous on high speed.

There are no grounds on the power distribution / fuse block. You will have to find a chassis ground. There is one located near the two fan relays on the inside of the drivers fender, just aft of the radiator.

Regards,

Mike

[mikebike]

Thanks Mike
Handy information to have.

[Mike in AZ]

Originally Posted by mikebike

Thanks Mike
Handy information to have.

You're welcome...... I've had to get "up close and personal" with that fuse panel a few times. I end up taking it apart every time I install a supercharger...... I use some stealthy tactics for the wiring modifications.

I just wanted to be sure that it becomes common knowledge about the three terminals...

Regards from the desert,

Mike

[Bca8ball]

Thanks again Mike.
This (as usual) is the precise information I was asking about.