My Lug Bolt snapped

[30bino09]

94 Q45

hey guys took my car to Big O Tires for new tires and they over torqued my lug nut and broke my lug bolt. I discovered this sunday when i was replacing my brake pads. I opened the wheel cap put my wrench on the nut and it fell to the ground with a piece of the bold lodged in it. They are denying of course so what are my options for replacing/fixing the problem.

[paranoidjack]

94 Q45

hey guys took my car to Big O Tires for new tires and they over torqued my lug nut and broke my lug bolt. I discovered this sunday when i was replacing my brake pads. I opened the wheel cap put my wrench on the nut and it fell to the ground with a piece of the bold lodged in it. They are denying of course so what are my options for replacing/fixing the problem.

You have to replace the stud. it's not that bad. No special tools required.

remove wheel, brakes, rotor, maybe hub (not sure on G50), and bang the other one through, and then either *pull* the other one on with a few washers, or PREFERABLY remove the hub and tap her in as she's supposed to do.

If you do go the pull method, MAKE SURE IT IS STRAIGHT after every twist or you'll be replacing your hub as well.

[Trumpkin]

Also, The job is much easier with air.

[Skibane]

It's a common problem on Qs.

You can prevent it from happening again by removing the wheel and putting a tiny little bit of Permatex Anti-Seize compound on the threads of each lug. You only want it on the threads - the part of each lug nut that tightens against the wheel must remain dry, so that it has enough "grip" to keep the nut from loosening over time.

[qship96]

It's a common problem on Qs.

You can prevent it from happening again by removing the wheel and putting a tiny little bit of Permatex Anti-Seize compound on the threads of each lug. You only want it on the threads - the part of each lug nut that tightens against the wheel must remain dry, so that it has enough "grip" to keep the nut from loosening over time.

The above does NOTHING to prevent wheel stud from over stretching and breaking from massive over-tightening common with air tool usage. Hand tighten only using a torque wrench to prevent this issue.

[Infinitiguy19]

94 Q45

hey guys took my car to Big O Tires for new tires and they over torqued my lug nut and broke my lug bolt. I discovered this Sunday when i was replacing my brake pads. I opened the wheel cap put my wrench on the nut and it fell to the ground with a piece of the bold lodged in it. They are denying of course so what are my options for replacing/fixing the problem.

Of course the shop is going to deny the accusation, But the point is you were never witness to see every time the wheel was taken off and put back on, Was it put on by hand (Torque wrench) or the fast way (Air wrench).

So they are at fault but so are the others that put it on the wrong way over the years too, But ultimately they were the last to do it so they should in theory pay up.

The above does NOTHING to prevent wheel stud from over stretching and breaking from massive over-tightening common with air tool usage. Hand tighten only using a torque wrench to prevent this issue.

Well always in a shop there is the right way (The sometimes slow way) and a wrong way (The usually fast way). And in crappy shops or dealer they usually choose the wrong and fast way to work on car.

What a shame.

[Trumpkin]

All points are certainly true, But lets face it it is common and maybe even considered wear and tear. These cars are getting pretty old. Thats a lot of on and off of the lug nuts!Chain stores can be rough, independants maybe a better option when it comes to simple stuff. The guys at our local "tire mart" still have pimples!

[paranoidjack]

All points are certainly true, But lets face it it is common and maybe even considered wear and tear. These cars are getting pretty old. Thats a lot of on and off of the lug nuts!Chain stores can be rough, independants maybe a better option when it comes to simple stuff. The guys at our local "tire mart" still have pimples!

I've had a broken stud on my car for about a year now...completely forgot until I reread this thread! Should probably do that when it warms up a bit...

[qship96]

WOW!

[Trumpkin]

WOW!

Livin' on the edge!

[Q45tech]

I can assure members that I had all my wheels on and off more times than any other Q due to frequent rotations and balances, brake work etc over the past 18.5 years and 320,000 miles. I worn out 2 sets of 1994 wheels [due to them getting out of 5 gram balance spec]. 12 sets of tires plus 5 sets of experimental wantabee tires [non Michelin] that became give aways at ~~5,000 miles.

Never changed a lug bolt never used a torque wrench, always used a precise torque stick [$30] that fits on an air wrench. I do check the torque stick every few years to make sure it is still accurate.

http://www.torquestick.com/

Either 75 or 80* ft/lb is fine for oem wheels.

* Ideal midpoint of oem range 72- 87 range

[paranoidjack]

Livin' on the edge!

if 19 out of 20 lugnuts is living on the edge, then I should really quit the "over the edge" facets of my life!

[Trumpkin]

I guess you're right. Now running from the law, thats on the edge!

As far as torque, if you trust your lugs to a spring filled gadget go for it!As far as threads on studs-everything has a life span.