First, this isn't for a 350Z, but since the mechanics is the same, I thought I'd ask.

Well, I broke a wheel stud overtorquing the lugnut so I bought a new stud in order to replace it. I remove the wheel, caliper, then rotors to get to the hub. I hammer out the broken stud and place a new one in.

To seat the new stud, I've read I was supposed to just get an open lug nut and turn it until it's fully on. Well the stud is halfway in and it starts turning freely. And the lugnut was stuck on the stud and it took me a while (hours) to take it out. I gave up last night, but I'm gonna try it again today...Any tips? How do I prevent this from happening again? I made sure the stud was straight when I was putting it in yesterday... thanks

 

Stud turning freely indicates it is the wrong size? Hole is damaged? It shouldn't do that; once you start to draw it in with the nut, it should be damn tight and not go anywhere.

 

Easy way to seat a Stud.

Get a Bottle Jack on a press stand (Like $50) and simply press it in.

You can also take it to a local shop have it pressed in for like $5.00

 

Yes, but you have to take off the hub to do that. The method he's describing is to do it with the hub on the car.

 

Yeah, it was tightly drawing in for a while. I even had to switch from sockets to a wrench because I didn't have an extended socket. But suddenly, it was hard to move and when I turned it, it started spinning... But the back of it wasn't flat to the hub yet. Maybe halfway.

I went to NAPA and asked for the stud with the car year and model...Argh wasted so much time. I just hope the hub isn't ruined. Stud seemed to be the right size.

 

its ruined. if you can hammer it out, do that. You stripped the base of the stud. I did this on my Z with one of the studs, but i couldnt get the lug nut off! i ended up having to saw it off by hand!

 

Yeah, I had to dremel the lugnut, and it still took some more heavy twisting...So nothing wrong with the stud size or the hub, just unlucky?

 

more than likely what happend, is that the lug nut was mistreaded from trying to pull it through, and ended up turning the stud, stripping it. Thats what happend to mine. Just get another stud and try again. make sure the lug and stud are both the same tread pitch.

 

How do I make sure they're the same pitch? Just screw on the lugnut and see if it goes in?

 

When you put the new stud on, you must first push the new stud through the hole, then install some thick washers on it, then put the lugnut on to have the new stud pull into position.

To check pitch - the lug should easly screw on the end of it and not just for one turn, but 5 to 8 rotations.

 

Yeah, that's what I did. Of course, I couldn't get the thicker part into the hole, but I did put the stud thru the hole and put on the lugnut/washer. And I'm pretty sure the lug easily screwed on all the way.

And how many washers should I use? I went to ACE and grabbed some washers that fit, thick and thin, but most of them seemed a bit curved. I only used one, but I found that my socket wouldn't get that far so I had to go buy a wrench (spinning actually happpened when I used the wrench).

 

the easiest way to do it would be with some air tools. thats how i did mine. I replaced 5 of them on my car! Get you a good impact wrench and socket... and compressor if you dont have one. Air tools come in SO handy, lol.

 

Yeah, I would love a set of air tools...but don't have $300+ to spend

 

I used about 3 or 4 washer when I replaced mine and only used hand tools to install, I used a torque wrench set to about 120 ft-lbs to make sure I didn't snap the lug. I tried an impact wrench - and snaped a lug.

Set your torque wrench to about 85 ft-lbs when you put the wheel on with the lug nuts, and drive for 100 miles and check all the lugs again.