[Z06] Wheel luges
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 830
Likes: 29
From: crestview fl
Wheel luges
I have put a set of C6-Zo6 wheels in the stock C5 sizes 17x9.5 and 18x10.5 on my 04 Z. They came from Factory Reproductions inc. Has anybody bought these same wheels? The problem that I'm having is that my lugs are backing off while vehicle is being driven. I tourqued my lugs to 100lbs and they still backed off far enough that had a grinding noise while driving. I thought it was a brake dragging or wheel bearing going. I decided to pull the right rear and see if I could solve the problem or identify what the dealer need to focus their search on. When removing the rear lugs I noticed that all five were way loose and came close to loosing a rear wheel while driving. Not a good thing!!
Anybody have this prolem or fix? Loc-tite?
Mike
Anybody have this prolem or fix? Loc-tite?
Mike
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 32
From: Central Florida
I would inspect the hub studs and lug nuts for signs they have been lubricated with something like WD40. That could cause the symptom you describe.
If so, get rid of all traces of lube.
Ranger
If so, get rid of all traces of lube.
Ranger
Melting Slicks
Joined: Jul 2003
Posts: 2,454
Likes: 0
From: Ventura County CA
Originally Posted by Ranger
I would inspect the hub studs and lug nuts for signs they have been lubricated with something like WD40. That could cause the symptom you describe.
If so, get rid of all traces of lube.
Ranger
If so, get rid of all traces of lube.
Ranger
slong
Burning Brakes
Joined: Sep 2002
Posts: 1,077
Likes: 1
From: Greenville SC
Something to watch out for is that the taper of the lugs is "deep" enough. I just had that happen yesterday when I switched lugs on my 02 Z06 wheels. The nuts are supposed to have a 60 degree taper and these did, but it wasn't deep enough so the only part of the nut actually touching the wheel was a super thin strip of material only on the edge of the hole in the wheel.
I noticed right away that as I was tightening the lugs with the torque wrench that they were "skating", meaning I had almost no resistance.
Good thing I caugh it early and went to buy lug nuts that I belive are called "bulge" nuts. Basically they have a big cone on the side that contacts the wheel that "bulges" past the diameter of the nut a bit.
Lug nuts are 12 X1.5 conical seat
These are the ones that "look" right but are not..
http://www.skycraftsurplus.com/index...ROD&ProdID=705
These are the ones that are correct (at least for the 01-04 Z06) Sorry that I could only find a picture of a red one...
http://www.closeoutautoparts.com/grla-41137rd.html
Warning : I am assuming that the C6 Z06 wheels have the same 60 degree conical holes...
MD
I noticed right away that as I was tightening the lugs with the torque wrench that they were "skating", meaning I had almost no resistance.
Good thing I caugh it early and went to buy lug nuts that I belive are called "bulge" nuts. Basically they have a big cone on the side that contacts the wheel that "bulges" past the diameter of the nut a bit.
Lug nuts are 12 X1.5 conical seat
These are the ones that "look" right but are not..
http://www.skycraftsurplus.com/index...ROD&ProdID=705
These are the ones that are correct (at least for the 01-04 Z06) Sorry that I could only find a picture of a red one...
http://www.closeoutautoparts.com/grla-41137rd.html
Warning : I am assuming that the C6 Z06 wheels have the same 60 degree conical holes...
MD
Last edited by Z06-Nomad; Feb 16, 2006 at 11:47 AM.
Burning Brakes
Joined: Nov 2004
Posts: 988
Likes: 4
From: Livermore CA
Lug Lube
I have always lubed my lugs with grease for the last 30 years of wrenching on cars for two reasons. The first reason is to prevent seisure or galling of the threads. The second is to get a consistent clamping force from all the studs. The lubrication will increase the clamping force compared to non-lubricated but it has never been a problem. Also I have never had a problem with nuts loosening. I beleive your loosening is due to the bolt circle of the wheel being off and the tapers of the nuts are not sitting square into their respective seats.
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 830
Likes: 29
From: crestview fl
Thanks guys for all your replies. I'm going to replace these bad set of lugs with my originals lugs and see what happens. I will take a hard look at my wheel studs for any damage caused by these wrong size wheel nuts. I'll also look at the wheels themselves for damage from the these lug nuts. Keeps your responces coming and I'll do the same and I'll let you guys know if the old lugs amke a diffrence.
Mike
Mike
Melting Slicks
Joined: Feb 2005
Posts: 2,087
Likes: 4
From: granville mass
Originally Posted by Just Enough
I have always lubed my lugs with grease for the last 30 years of wrenching on cars for two reasons. The first reason is to prevent seisure or galling of the threads. The second is to get a consistent clamping force from all the studs. The lubrication will increase the clamping force compared to non-lubricated but it has never been a problem. Also I have never had a problem with nuts loosening. I beleive your loosening is due to the bolt circle of the wheel being off and the tapers of the nuts are not sitting square into their respective seats.
I understand Ranger's post, and it must work because we all know he know's his car, but I've used a dab of anti-seize on threads for 10 years with no issues. I think you have something else going on. Follow the recommendations on the other posts, and when you find something, please let us know.
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Safety Car
Joined: Feb 2002
Posts: 3,726
Likes: 368
From: Montoursville Pa
Here is another thing to look at. If the wheels are new they may not have hard enough seats (yet) they may need torqued several times after driving sessions till the seats (where the nut goes in) is work hardned. Just a thought.
Racer
Joined: Dec 2004
Posts: 406
Likes: 0
From: Charlotte NC
If the wheels are new, it could also be that there is excess paint build-up in the lug seat area.
OR you might need a different type of lug. There are tapered lugs and there are "acorn" lugs, which have a rounded bottom.
OR you might need a different type of lug. There are tapered lugs and there are "acorn" lugs, which have a rounded bottom.
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 830
Likes: 29
From: crestview fl
I pulled the wheels off and looked at the wheel and lugs closely. I noticed that the center of each lug nut beyond the treads was a shiny round circle from the wheel lug bottoming out inside the lug nut. I replaced my old stock lug nuts back on my Z and drove around to see they would back off, but didn't drive far. I never had a problem with any of my previouse vetts wheel lugs. I called House of Wheels (B0b) and hhis reply was I never heard of the type of problem and " I sell these type of lug nuts by the pallet load". Basically not his problem, take it to a tire dealer and see what they can do to help me! Anybody dealing with this guy better get ready to give up your cash and don't exspect to much service but the bare mimimum. I even went back to the old school tourque wrench with the needle indicator to ensure that I was getting 110 lb's
Anybody else have lug problems let me know.
Mike
Anybody else have lug problems let me know.
Mike
Melting Slicks
Joined: Oct 2000
Posts: 2,491
Likes: 1
From: prescott AZ
I have used anti-seize on my Vettes for many years and never had a problem in any way. I have stopped the practice so as to get the true torque rating applied. It sounds like you are the wrong nuts.