Help ASAP - install stud or remove hub?!?

[matteni]

OK - I am filling the curse jar again and throwing tools cause I can't figure out how to get a damn wheel stud in!

Please help.

I have removed both rear wheels and I can get them out as witnessed by the 2 I have ruined just to prove I can. To get them out I can hammer them out as at the end they go out at a slight angle and I can inch them out of the hub.

I just can't get them back in as they are at a slight angle no matter where I turn the wheel hub it is never straight enough!

Do I need to remove the hub to get these in? If so - how does it come out?

BTW - if someone knows and is board - please call me on my cell at 314-223-7007 and fill me in!

TIA!

 

[matteni]

I went to the dealer to pick a couple of these up. I asked St. Louis' only certified NSX tech we know of what he thought about replacing the studs. He says they press out the axle nut, remove the hub, and then press in the studs. Dohhh!!!!!!!!!

Thanks to DanO I have a plan to get them back in - I will post more if it works. Basically I am going to shave a mm or 2 off the top of a head so it will be "flat" when coming back in from the back of the hub. You will never hear back if it doesn't because I probably distroyed my axle!

Any ideas still welcome however.

 

[Hrant]

You have two choices; both will use a Dremel type tool.

Either grind the edge of each head stud so it "squeszes" through, a labor intensive process ........ or grind down one spot on the brass color hub cover so that you remove each stud at that place by rotating them to get to that spot.

We used the latter technique when installing longer studs for spacers.

 

[sjs]

Hey Nick, I hope you got it figured out, but if not, pulling the hub off is not that big of a deal and should simplify replacing the studs.

I didn't want to ask when we spoke earlier, but why did you need to pull the studs?

 

[matteni]

Hey Nick, I hope you got it figured out, but if not, pulling the hub off is not that big of a deal and should simplify replacing the studs.

I didn't want to ask when we spoke earlier, but why did you need to pull the studs?

Hi SJS,

Well I had one stud that had some mushroomed threads I thought needed replacing (it was getting tough to get the lug on and off). I officially ruined it when I hammered it out. Then I got frustrated and hammered another one out just to prove it really did come out and I wasn't imagining things!

I toasted 3 pads and 3 rotors and was cleaning and installing new stuff anyway - just didn't know what I was getting into!!!

 

[nsx1164]

another chapter in the works ??

in Nick's DIY for "dumas" ??

One problem we've seen in putting in new wheel lugbolts is that if you pull them through wrong, you may NOT get a good lock on the back side of the hub, requiring you to tack-weld the ends.

There's a procedure that involves stacking a bunch of washers on, and applying torque to a nut/lug to pull the bolt through. Sounds hard to explain w/o pictures, but maybe DanO has this documented... do 'em wrong and you may need to tack-weld.

Sounds intuitive, but this has tripped up a few good NSX techs, including some of the best in these parts.

 

[DanO]

Re: another chapter in the works ??

I have never tried replacing the studs with the hub still on the car; I guess Nick is going to find out how easy or difficult it’s going to be! Even with the hub out, it is a little tricky installing the stud because the design of the hub does not allow the stud to go in straight at first. Some people use a Dremel tool to grind a little off the hub as Hrant mentions above. I’ve always used a punch and hammered the stud through this initial spot—it has always worked fine for me.

To draw the stud to the hub, it’s probably best to use some washers and a 12mm x 1.5mm hex nut or an extra lug nut (the lug nut may be damaged so inspect it before using it on the wheel).

A front hub DIY is here: www.danoland.com/nsxgarage/fronthub/stud/studs.htm

As SJS mentions, removing the hub is not that big of a deal if you have the right tools.

Good luck Nick and let us know how it turns out!

DanO

 

[matteni]

I did it!!! I got them through without a dremmel tool or removing the hub.

More to follow - with pics! Here is a hint - you will need some english wrenches, old shoes, and a rail road stake / chisel!

Some of you think I am kidding don't know me very well!

 

[matteni]

<p><font face="Verdana" size="2">OK - here is how you get a stock length stud back in the hub.  </font></p>
<p><font face="Verdana" size="2">To get them out you can hammer them out as you don't care about mushrooming the threads.</font></p>
<p><font face="Verdana" size="2">Once you have them out they will look like this:</font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/Hub_minus_the_2_studs.jpg" width="332" height="420"></font></p>
<p><font face="Verdana" size="2">Then you will need some "persuasion"
to get them back in. I used this railroad tie and pull on it to get the stud started.</font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/Pry_the_new_stub_forward.jpg" width="312" height="379"></font></p>
<p><font face="Verdana" size="2">Then it is "hammer time"!  </font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/Pound_it_forward_with_a_hammer.jpg" width="309" height="391"></font></p>
<p><font face="Verdana" size="2">Then you need some good metal washers to pull the stud all the way through.  I found a couple of English box wrenches worked perfectly with an old lug you don't care about.  Angle the wrenches into the next stud (shown) so they won't move on you.</font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/Use_the_english_wrenches_as_washers.jpg" width="262" height="287"></font></p>
<p><font face="Verdana" size="2">This was really the hardest part.  You will need your long torque wrench or a breaker bar and use your foot to generate the opposite force.</font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/Use_the_stud_below_and_an_old_shoe_for_torque.jpg" width="316" height="392"></font></p>
<p><font face="Verdana" size="2">As you can see - it is tough on a lugs!</font></p>
<p><font face="Verdana" size="2"><img border="0" src="http://www.ourfamilyinteractive.com/PhotoAlbums/NSX/Replace_Rear_Stud/You_will_probably_ruin_a_lug.jpg" width="257" height="286"></font></p>
<p><font face="Verdana" size="2">Anyway - that was it - I did 2 of them and it wasn't too bad once I had the right tools for the job!</font></p>

 

[DanO]

Nick, you make McGiver look like a school kid! I was wondering how those English wrenches were going to come into play!

Actually, it’s nice to know that the studs (OEM at least) can be changed w/o removing the hub…pretty cool!

DanO

 

[john576]

Just replaced rear stud last night using a derivation of Nicks technique.
Removed caliper and pads, but left brake shield on.
Pounded out old stud, will have to turn hub to find opening, then it wiggles out.
Lightly filed oem stud before wiggling it mostly in
Put brake assembly back on car, applied brakes while seating new stud with aforementioned washer method
Just needed someone to hold the brakes while tightening/seating stud.

 

[nsxtasy]

Hey Nick, where did your photos go? I can't see them...

 

[matteni]

Hey Nick, where did your photos go? I can't see them...

I switched ISP's last week and it is taking a LONG time to republish the 4GB web site of personal photos / etc plus it keeps stopping 1/2 way through.

Hopefully can get this all moved over in the next day or 2.

 

[matteni]

Here are the pics back up (above)