S2000 Under The Hood S2000 Technical and Mechanical discussions.

Passenger side rear lug nuts keep coming loose

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Old 08-31-2007, 07:04 AM
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Car was bought used with 9800 miles. I've put about 4000 more on. No aftermarket rims were ever put on. I honestly think I'm the first one to take off the wheels; It has the original SO-2's on it. I'm the third owner and the two guys before me were in there forties (I'm 25); weekend cars for them.

Definitely only a star pattern.
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Old 08-31-2007, 07:50 AM
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Swap the wheel to the other side and see if the problem follows (I know the tread pattern will be wrong way round, but ignore that for a short test).
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Old 08-31-2007, 07:53 AM
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Originally Posted by dhayner,Aug 31 2007, 10:50 AM
Swap the wheel to the other side and see if the problem follows (I know the tread pattern will be wrong way round, but ignore that for a short test).
That's exactly what I was gonna do on my lunch break .... thanks
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Old 08-31-2007, 07:59 AM
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Even though spec calls for 80 ft-lbs, seems like a lot of people torque them between 80 - 90

https://www.s2ki.com/forums/index.php?showtopic=223599
(search for "lug nut" in the page, its about 1/2 way down)

I myself torque them to just a bit above 90 ft-lbs and have never had a problem with them coming loose (OEM ap1 wheel and lugs).

edit: btw, can't stop staring @ your avatar.
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Old 08-31-2007, 08:40 AM
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Originally Posted by hyper,Aug 31 2007, 10:59 AM
Even though spec calls for 80 ft-lbs, seems like a lot of people torque them between 80 - 90
yeah, even @ 90 they're still coming loose
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Old 08-31-2007, 08:45 AM
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one of mine fell out from the exact same wheel. weird.
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Old 08-31-2007, 01:17 PM
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Closing this thread ...

Let this be a lesson, even to those who've been in the game for a while. I've been working on cars for roughly 8-9 years and I pulled the ultimate noob mistake.

Check you torque wrenches. Make sure they say FT-LBS NOT IN-LBS.

I borrowed a torque wrench as mine is getting serviced. I assumed it was in FT-LBS and didn't even think twice to check it. Thank God that only a couple of lugs came loose and nothing worse. Take care all and happy tuning. Thanks for all of the suggetions and quick responces everyone.

-Nate (Whome no long has loose nuts )
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