Text Only | Text with Attachments

The Rodding Roundtable

Motorhead Message Central => Rodder's Roundtable => Topic started by: enjenjo on September 18, 2018, 07:41:52 PM

Title: Lug nut torque
Post by: enjenjo on September 18, 2018, 07:41:52 PM
What is the correct lug nut torque on a 7/16" lug bolt with steel wheels? I am not finding any information any place I can think of.
Title: Lug nut torque
Post by: Bruce Dorsi on September 18, 2018, 08:57:36 PM
Correct torque is tight enough to not loosen, but not tight enough to strip the threads or shear the bolt.

I'm sure you already knew this, Frank !   :roll:
Title: Lug nut torque
Post by: kb426 on September 18, 2018, 09:09:30 PM
Everything I have seen has been 70 ft. lbs.
Title: Lug nut torque
Post by: enjenjo on September 18, 2018, 11:07:04 PM
Quote from: "Bruce Dorsi"Correct torque is tight enough to not loosen, but not tight enough to strip the threads or shear the bolt.

I'm sure you already knew this, Frank !   :roll:

Gee, thanks. :roll:  You must be an engineer, your answer is technically correct, but completely useless. :D
Title: Lug nut torque
Post by: enjenjo on September 18, 2018, 11:08:44 PM
Quote from: "kb426"Everything I have seen has been 70 ft. lbs.

I have been told 100ftlb, I have been told 80ftlb, but your answer sounds more feasible to me.
Title: Lug nut torque
Post by: enjenjo on September 18, 2018, 11:19:12 PM
I found this on a Dodge Dart site  "shop manual states 7/16"-20 55 ft-lbs and 1/2"-20 65 ft-lbs". Since the front rotors have Dodge Dart studs, I guess that should be close.
Title: Lug nut torque
Post by: Arnold on September 20, 2018, 09:04:30 AM
"Newfy Torque"..Tighten it until it strips..then back it off half a turn.
Title: Lug nut torque
Post by: Charlie Chops 1940 on September 27, 2018, 09:45:32 AM
I've never seen anything that differentiates between wheel material so I use the same torque on steel or aluminum wheels. I have an old American Racing installation instruction sheet that shows the following torque recommendations:

7/16"  55-65 ft. lbs.
1/2"    75-85
9/16"   95-115
5/8"    125-150
10mm  45-55
12mm  70-80
14mm  85-95

Haven't ever had a wheel come off so I guess that I'm doing it right or have gotten lucky...
Title: Lug nut torque
Post by: WZ JUNK on September 27, 2018, 08:55:32 PM
Hooley uses a torque wrench on the lug nuts of the race cars.  I have never torqued the lug nuts on any of my own vehicles.  The one time I did torque wrench the lug nuts was on the Dodge truck that we were using to tow the Studebaker to the salt flats.  I checked the lugs before we left from home, and again before we left Wendover.  Midway across Nebraska the left rear wheel came off of the truck and we went for a ride I will not forget.  

Just passing along my experience with lug nuts.

John
Text Only | Text with Attachments