wheel nuts - way to tight

Wheels, Suspension, Brakes & Tyres questions and answers

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M1474
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Re: wheel nuts - way to tight

Postby M1474 » Sun Feb 03, 2013 2:18 pm

*too

It often results in a busted stud.

I would have taken it straight back to the dealer as soon as it made the grinding sound.

Use your torque wrench to "read" the torque of some of the other wheel nuts to compare how over tightened they were and go back for a please explain.
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Steampunk
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Re: wheel nuts - way to tight

Postby Steampunk » Sun Feb 03, 2013 3:34 pm

Using a torque wrench to undo over-tight nuts & bolts is a good way to ruin a torque wrench.

nbse2 wrote:Outside of stripping the threads (which I think have been impacted somewhat as the wheel nuts did not turn evenly if that make sense), ...


I guess you mean "cross-threading" not stripping. If you think that's what's happened then use a tap&dye kit to clean the thread.
I've never heard of overly-tight nuts making grinding sounds, it must come from somewhere else.

You didn't mention what kind of 'dealer' service was performed.
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Black_Penguin
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Re: wheel nuts - way to tight

Postby Black_Penguin » Sun Feb 03, 2013 4:00 pm

This why when anything is done involving the wheels on my car I take a torque wrench and ask that they only run them up and I will do the final torque.
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Lokiel
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Re: wheel nuts - way to tight

Postby Lokiel » Sun Feb 03, 2013 5:23 pm

Steampunk wrote:Using a torque wrench to undo over-tight nuts & bolts is a good way to ruin a torque wrench.
:


+1 - use a torque wrench for tightening to specs only. Use an impact wrench to loosen over-tightened bolts.


Black_Penguin wrote:This why when anything is done involving the wheels on my car I take a torque wrench and ask that they only run them up and I will do the final torque.


I have 6UL wheels and lug nuts and 949racing recommends "Torque lugs to 70~80 ft-lbs ( 94Nm~108Nm)". When I got my tyres fitted at Beaurepairs I explicitly asked them to torque them to 94Nm only, it was written on the worksheet - they'd be easy to loosen then. When I picked up the car I took along my torque wrench too. I used my tyre iron to loosen the nuts first and then torqued them up to 100Nm. EVERY wheel nut was hard to loosen up so I know that they just tightened the "bejeezus" out of them. I let them know I wasn't happy, I bet they've never had a customer check every wheel nut before, but when I got tyres fitted to my track 6UL, they did follow my instructions.

Tyre pressure is still an issue though, they always put too much air in.
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Re: wheel nuts - way to tight

Postby project.r.racing » Sun Feb 03, 2013 5:35 pm

the scrapping sounds is either a bent dust shield or the pad dragging on the rotor after a handbrake adjustment.

everytime i go the the tyre shop, the rattle gun those nuts on real tight. steel nuts, not a problem, alloy nut, well they already only have a 12-18 month lifespan, so it will shorten their life even more.

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Re: wheel nuts - way to tight

Postby vrmmmpshhh » Sun Feb 03, 2013 6:45 pm

Mechanics at fast food workshops don't get paid nearly enough to go tightening nuts to customer specs.


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