Then that sucker came off.
Broken Studs
Le Mans Master
Joined: Jan 2006
Posts: 6,831
Likes: 4
From: Vacaville Ca
St. Jude Donor '13
Track day with lots of heat will temper them. You have to make certain not to overtighten them cold, the wheel could grow and snap them. Loose can also do that but they would all be loose. 
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
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Burning Brakes
Joined: Nov 2004
Posts: 988
Likes: 4
From: Livermore CA
If you are heat tempering your wheel studs your bearing grease would be on fire. Broken studs are usually due to corrosion in the valleys of the threads which causes a stress riser and then cracks through when overtightened or overtightened and then the aluminum wheel expands from heating up and pushes the stress over the limit. I have been lightly greasing my wheel studs for 30 years to eliminate the corrosion issue along with getting equal clamping force on all five studs from the applied torque.
Melting Slicks
Joined: Mar 2004
Posts: 2,748
Likes: 1
From: San Jose Ca
Le Mans Master
Joined: Jan 2006
Posts: 6,831
Likes: 4
From: Vacaville Ca
St. Jude Donor '13
If you are heat tempering your wheel studs your bearing grease would be on fire. Broken studs are usually due to corrosion in the valleys of the threads which causes a stress riser and then cracks through when overtightened or overtightened and then the aluminum wheel expands from heating up and pushes the stress over the limit. I have been lightly greasing my wheel studs for 30 years to eliminate the corrosion issue along with getting equal clamping force on all five studs from the applied torque.
Good luck with those greased wheel studs!
Steve
Burning Brakes
Joined: Nov 2004
Posts: 988
Likes: 4
From: Livermore CA
My father tells the story of having lubed his studs as well and later having to hike off the road to retrieve the wheel that came off. Nobody will every convince me to lube that thread. I will however give them a once over with a wire brush whenever I have the wheels off to make sure the clamping force is equal on all the studs. I have already wasted one set of bearings on my left rear from heat, I know it can happen.
Good luck with those greased wheel studs!
Steve
Good luck with those greased wheel studs!
Steve
Instructor
Joined: Mar 2007
Posts: 109
Likes: 0
From: So.San Francisco Calif.