9Nine3

I was tightening my rear wheel's nuts and suddenly I heard this horrifying sound. It turned out that I broke one of the bolt by overtightening the nut.
Anybody ever experienced it? Is it hard to replace? Is it a DIY thing?
Thanks.

Gweedo

You broke the lug nut? It's not too tough to fix if you have the right tools. Take a deep 9/16 socket, using a hacksaw cut slits in the end of it so it is like a little saw blade, put it on an impact gun and slide it over the stud and go to town. It will cut through what is left of the aluminum lug and you should be able to get the wheel off. Other options are using a drill to drill a bunch of holes in the remainder of the lug. You may need to do a little of both to get it off. Good luck!

Matt

Bull

I thought he meant he broke one of the studs off. If so, I would have a new stud properly pressed in place....after they remove the stub you left behind.

Gweedo

It sounded like that, but no way an aluminum nut will snap a wheel stud. Could be aftermarket steel lug nuts I guess. We shall see...

9Nine3

Yes, I broke one of f ive bolts (Size 19) and I think both the bolts and nuts are made from casted iron.
Do I have to remove the brake disk to remove the broken bolt?

Gweedo

That's a nut (size 19), not a bolt (Wheel stud, 1/2"). Are you positive that the nut is iron? Factory is aluminum. How much does the piece that broke off weigh? It should be VERY light.

The disk won't come off with the wheel on the car. If you are not comfortable doing what I outlined above you will need to take it to a shop for them to do it.

Matt

p.s. Where are you located?

chris walrod

I think he is referring to the stud itself, which, I am a little shocked given their size.

Replacement does indeed require the removal of the caliper, rotor and possibly one of the E-brake shoes in order to gain clearance. Not hard to do, just some work.

Gweedo

If it really is a stud that broke I'd be inspecting the other studs, the wheel, the hub, and the rotor. That's not normal.

Marc Shaw

Here is what the studs look like on the front (of a 964 - same as a 993) - they are press fit into the hub.

Marc

Garth S

Read post #4 in this thread for the sequence: the critical part is assuring the hub to be rotated to the sweet spot that allows the stud to protrude through the back side without interference.

brucec59

You did what now?

9Nine3

Thank You All for your help. I will have my car inspected and repaired.