Wheel Nut Torque Question
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 1,094
Likes: 53
From: Dunkirk N.Y.
St. Jude Donor '07-'08-'09
Wheel Nut Torque Question
When using a torque wrench to tighten lug nuts, should a lubricant be
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
Safety Car
Joined: Nov 2003
Posts: 4,979
Likes: 5
From: San Diego, CA "leaf" "tee" "e"
You could lube, but then you're on your own figuring out what the reduced torque spec should be.
You're better off using a wire brush to clean the threads, and torque'n to 100 ft/lbs.
You're better off using a wire brush to clean the threads, and torque'n to 100 ft/lbs.
Le Mans Master
Joined: Dec 2001
Posts: 5,707
Likes: 555
From: St. Peters MO
C7 of Year Finalist (stock) 2019
2018 C7 of Year Finalist
Originally Posted by Spark 2
When using a torque wrench to tighten lug nuts, should a lubricant be
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
Safety Car
Joined: Nov 2003
Posts: 4,979
Likes: 5
From: San Diego, CA "leaf" "tee" "e"
And to add onto JeepTJ's advice, tighten in a cross-star pattern...not around in a circle.
This helps the wheel center itself, and sit flat against the hub.
I still wouldn't say NEVER lube the threads, but to find the new torque ratings, you'll need a bunch of studs to experiment with. You'd torque them till they broke, and keep going until you have a good statistical number of results listed, then you'd back off about 10% and that'd be your torque rating for that particular lube.
This helps the wheel center itself, and sit flat against the hub.
I still wouldn't say NEVER lube the threads, but to find the new torque ratings, you'll need a bunch of studs to experiment with. You'd torque them till they broke, and keep going until you have a good statistical number of results listed, then you'd back off about 10% and that'd be your torque rating for that particular lube.
Burning Brakes
Joined: Oct 2003
Posts: 1,106
Likes: 1
From: Foresters Falls(near Ottawa) Ont
Originally Posted by Spark 2
When using a torque wrench to tighten lug nuts, should a lubricant be
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
used on the threads? Or will that lubricant cause the lug nuts to
loosen? If a lubricant should be used what do you recommend?
Thanks for your input!
RonJ ...
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
NEVER LUBE LUG NUTS. My neighbor lubed his, in a few weeks he had his car flatbedded, he thought his transmission was bad, all his wheels were loose and making noises! Use a wire brush to clean lug stud threads.
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Burning Brakes
Joined: Oct 2003
Posts: 1,106
Likes: 1
From: Foresters Falls(near Ottawa) Ont
Originally Posted by Oldvetter
NEVER LUBE LUG NUTS. My neighbor lubed his, in a few weeks he had his car flatbedded, he thought his transmission was bad, all his wheels were loose and making noises! Use a wire brush to clean lug stud threads.
I received my license as a Motor Vehicle Mechanic here in Ontario in 1964. That's a five year apprenticeship before you write for your ticket. I wouldn't want to guess how many wheels I have had off and on over these many years. From Volkswagens to Mack trucks to Corvettes, as I said in my earlier post, I have never lost a wheel because of using Never-Seize.
I'm guessing you have never had the pleasure of removing wheel nuts that haven't been off a Chev pick-up for four or five years.
The defence rests ... RonJ ...
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by JUSAKD
I agree on the anti-seize. Been a mechanic for 35 years. Never had a problem with nut coming loose.
Instructor
Joined: Feb 2005
Posts: 182
Likes: 0
From: Ft. Lauderdale Florida
Originally Posted by JUSAKD
I agree on the anti-seize. Been a mechanic for 35 years. Never had a problem with nut coming loose.
Anti seize will give a false torque reading. For example, you will show 100 ft Lbs on the torque wrench, but probably have 120 ft Lbs on lug. Corvette manual, and other auto manuals specifically caution using lubricants or anti seize on torqued fasteners.
The wrench can only measure rotational resistance and clicks to indicate that you are at a pre-selected setting. The wrench does not measure pressure against the surface and fastener. A torque measurement on a fastener actually indicates how much the metal distorts given a particular pressure. Using a lubricant and the same torque setting as non-lube will overstress the fittings.
We recently rebuilt a Turbo Supra engine, and installed high strength head bolts. The instructions indicate torque settings "dry" or specific lower settings (about 20% less) with molylube.
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
Originally Posted by shurite44
I just turn them until I nearly **** myself and that always ends up being just right. It's quicker. 
Le Mans Master
Joined: Sep 2004
Posts: 7,027
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From: Shiloh Ohio
Originally Posted by Oldvetter
You should always use a torque wrench, you can warp rotors on some cars (not sure about Corvette, but Hondas are commonly warped this way) by uneven torquing. This will cause pulsating brakes.
Are you guys kidding me, am I the only guy left in the world who does not use a torque wrench to tighten lug nuts.
Oh well. I know it is the best thing to do, I am not arguing there.
So don't do as I do, do as they say. How is that??
