PLZ help quick!! Doing this 2nite!!

[Speed_racer]

This Battery relocation project has turned into a PITA, not that ive even started, but that I keep getting mixed stories.
Ive got 20ft of wire, something between 0 and 2 gauge for the power.

This is going on a 93 XJ 4.0

The way the battery is now, 2 wires run to the positive terminal, one from alternator, one from Starter.

And 2 wires run to the negative, one to the block, and one to "chassis"

My plan is, change out the wire from the alternator and starter with the 0/2 gauge, and run them into each other, run that SINGLE wire from their to the back of my XJ to the positive on the battery.

From the battery Run the negative wire (about 4 or 6 gauge) from inside, thru a hole (lined with a grommet so it dosnt cut it) to the "chassis"....

Is this the correct way to do this?!

How important is it that the ground wire goes into the block?

And lastly,
Someone told me run the ground thats hooked to the block to the chassis, WHy would that matter?

TIA guys!!

 

[LRRH]

How important is it that the ground wire goes into the block?

And lastly,
Someone told me run the ground thats hooked to the block to the chassis, WHy would that matter?

The wire that goes to the block is ground. You absolutely need this. I don't understand your second question.

 

[Speed_racer]

The wire that goes to the block is ground. You absolutely need this. I don't understand your second question.

Yes, it is ground, but what do I need to hook it to?

Dont tell me I have to also run a GROUND wire all the way from the battery to the block?!?!

 

[Loose_Nuts_Enterprises]

Run the ground from the battery to one of the bolts on the a/c compressor. The wire that goes to your altenator need to have a fusable link inline. Also upgrade your chassis ground(the one that goes to the inner fender well)
edit: I missed the part that you're putting the battery out back, but you should still ground to the block as it is insulated but rubber mounts.

HTH, Dan

 

[JeepFreak21]

Yes, it is ground, but what do I need to hook it to?

Dont tell me I have to also run a GROUND wire all the way from the battery to the block?!?!

Sorry bro, but you do have to run it back to the block.

 

[Speed_racer]

fine

that sucks!!

So the optima has to go up front then!!!

 

[bburge]

OK, so if I have this straight, this is a "battery relocation" project. you're moving the battery to the back of the XJ.

If that's so, you're wondering if you can use a chassis ground to tie all the grounds to the battery. That would be a rear area chassis ground for the battery and the engine block also hooked to chassis (instead of direct to battery) saving a full elngth runs of 4ga or greater wire.

I think you could do it that way. You might get some strange failure conditions if either of your chassis grounds started to plate/corrode.

I do have one question: you said you currently have two wires on the positive terminal of the battery - one from the starter and one from the alternator.

That doesn't jive (I have a 93). You should have two, one to the starter and one to the power distribution center next to the battery. The line from the alt go into the bottom of the power dist center and hooks into to 60amp fuses in it. If you run a lead from the alternator direct to the battery, you need to put a fuse in the middle of it. (I did this last weekend.)

For your purpose, I would run a big line from the back to a connection post on the engine compartment and then from the power dist box (bolts on the side) and one from the alternator to the post with a big fuse in the middle.

I used stuff from: West Marine

Let us know how it turns out!

bburge