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Tightening wheels lugs, torque wrench?
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11-26-2012, 05:54 AM | #1 |
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Tightening wheels lugs, torque wrench?
How many people actually tighten their wheel lugs with a torque wrench?.. Just saw one of our members post photos in the photo section, very misfortunate. I never understood, if tightening lugs to a certain torque is so important why do dealers always over tighten the crap out of em..
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11-26-2012, 06:27 AM | #2 |
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Always always always tighten the lugs or wheel studs with a torque wrench to manufacturer specs and in the pattern they suggest. The pattern typically crisscrosses the wheel in a star figure.You can warp the rotor very easily by not doing this properly. I hate to say it but a lot of dealers and shops just plain old don't care.There are air wrenches that can be set to a torque spec , but that should never be used as a final tightening tool, only to make sure you don't over tighten the studs. Its laziness really because going down through a set of wheels with a torque wrench takes about 5 minutes to go around the whole car once the wheels are on.....My family has owned a heavy equipment sales and service shop for over 30yrs. the HUGE sprockets that drive the tracks on a bulldozer call for torque specs. There are about 50 bolts that need to be torqued to about 300 pounds and then another quarter turn. We do it because that's what it calls for, but I've seen plenty of shop that don't..laziness
Last edited by Reznick; 11-26-2012 at 06:30 AM.. Reason: Added |
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11-26-2012, 06:36 AM | #3 | |
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I always use a torque wrench and would highly recommend their use. A decent torque wrench is relatively inexpensive and helps reduce, if not eliminate, lug related issues. I've not experienced over-tightening with the dealership, but I suppose it happens, and it's a matter of the diligence of the individual mechanic to spin the lugs on using the proper tools and methods.
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11-26-2012, 06:55 AM | #4 |
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Torque it.
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11-26-2012, 07:25 AM | #5 |
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Always hand torque em. Lots of shops don't, they just bang them on forever with an impact. I always do them myself, or if my regular guy does them I am in the shop when he does.
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11-26-2012, 08:36 AM | #6 | ||
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11-26-2012, 08:52 AM | #8 | |
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You'll want 1/2' for tire lugs. Most if not all torque wrenches will have Ft. Lbs and Nm Scale. Make sure it has both as owners manuals sometimes give torque ratings in only one scale. Torque Wrenches are a bit delicate so don't drop it and make sure you get one with a storage case. I'm in Canada so I went to Canadian Tire (we call it CRAPPY TIRE Here haha). *P.S. Putting Antiseize on the lugs is a bit controversial. I put antiseize on as the Canadian winters are corrosive and it just helps to take the lugs off in the spring/fall during tire changeover for me. There is a lot of speculation that if you put on antiseize, that so called torque setting is not valid anymore....I'm not gonna get into the pros and cons. Others on here will probably bring it up. Just be aware. For me, I torque mine wheels to 88 ft.lbs with antiseize).
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11-26-2012, 09:01 AM | #9 | |
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11-26-2012, 09:11 AM | #10 |
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what.. i only took my car in to get the locks installed because i don't have a torque wrench here in chicago... didn't know they might be too lazy to do it right..
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11-26-2012, 09:28 AM | #11 | |
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11-26-2012, 09:29 AM | #12 | |
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11-26-2012, 09:45 AM | #14 | |
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Torque is a measure of the sliding friction between the threads as you tighten the bolt. Add antiseize and you change the coefficient of friction, which means you risk over or under torquing the bolts if you go by the specified torque value. If you must use something on the threads different from the manufacturer's specification, supposedly you can use the K values to figure the new/correct torque values. I'd be really cautious doing this and recheck torque periodically to avoid any unpleasant surprises. |
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11-26-2012, 09:48 AM | #15 | |
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11-26-2012, 09:53 AM | #16 |
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88'#'s is the target??
I usually torque everything but never on the tires. Wondering if this is part of the pulsing feeling I get when braking/driving I guess I will start as soon as I swap the winter tires on |
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11-26-2012, 10:04 AM | #17 |
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Yes if you over torque you can warp the rotors. Unfortunately this is a one way process. Re-torqueing them now won't unwarp them and your pulsation will likely be with you until you change the rotors.
Lots of shops just use an impact to blast the lug nuts on. It's a terrible practice. |
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11-26-2012, 10:29 AM | #19 | |
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11-26-2012, 12:40 PM | #20 | |
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11-26-2012, 12:49 PM | #21 |
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Yes, I always use a torque wrench for the final fastening. I bought a nice one from BavAuto. I also use an impact wrench (Ingersoll-rand) to remove the lugs once loosened with a breaker bar, and to mount the lugs to about 70 Ft lbs. The final target is 90 Ft lbs with the torque wrench.
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