Correct torque for case nut when replacing alternator ground wire

[ErrorMargin]

I am going to replace the alternator ground wire. What is the correct torque for this case nut? See the picture below.

[john walker's workshop]

18

[ErrorMargin]

Originally Posted by john walker's workshop

18

Thanks!!

I'm assuming that is 18 pound / feet.

[PeteKz]

Yes. Or 24 N-m

[skinnerd]

Likely doesn't matter all that much at the top of the case. Dont sweat it. Gut 'n tite should be fine.

[ToySnakePMC]

That worn out & rigid ground wire is identical to the one I pulled off my 3.0L this summer. Fresh new Porsche replacement wire from our host was inexpensive and flexible. Easy peasy.

[MattTHEpainter]

Originally Posted by ErrorMargin

I am going to replace the alternator ground wire. What is the correct torque for this case nut? See the picture below.

This cable attaches to the bottom stud on the outside of the deflector, correct?

[ErrorMargin]

Originally Posted by MattTHEpainter

This cable attaches to the bottom stud on the outside of the deflector, correct?

On my 1984 Targa it was bolted directly to the alternator with the larger ground wire.

See the picture below, I've circled the wire in red where it attaches to the alternator with a larger ground wire.

I'm not sure that this is correct, it is just how mine was wired up and it worked fine.

[PeteKz]

FYI for anyone replacing the ground wire:

The alternator is grounded through several paths. The ground wire is obviously one path, however it also gets grounded through metal-to metal contact from the alternator to the fan housing, and then from the fan housing to the engine case. Therefore, whenever I have the alternator out, I make a point of cleaning and putting some grease on the contact points between the alternator and engine case . The last time I was in there, the brown ground wire insulation was cracking like the picture above, so I replaced it with a braided strap, much like the strap between the transmission and chassis, and between the chassis and the negative battery terminal, but smaller in cross-section. I think I salvaged it off a parts motorcycle.