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10-21-2006, 08:04 PM
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#1
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2 Rivet Member
2005 25' Safari
summerfield
, Florida
Join Date: Oct 2005
Posts: 38
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manual wheel torque specifications..
I beg to differ with the manuals specs to torque the alum wheels to 110 - 120 ft lbs on a Safari. It's about all I could do to get 80 ft lbs with the lugs greased up, and I checked them since...seem plenty tight to me.
You people buying a new rig that think that the dealer is going to pull the wheels, check your wheel bearings for grease and what have ya.. better pull your wheels when you get it home. Because... I could not even break the lug nuts lose with a breaker bar, because all 24 lugs were corroded white between the lugs and wheels sitting down by the ocean for 2 yrs..
Had to use a heavy duty air impact to do the job, yet the dealer swore to me checking the wheel bearings was part of their dealer prep. That's part of $495 we pay...
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10-22-2006, 07:19 AM
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#2
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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The spc's are 110-125 lb/ft on your lug nuts. Maybe either your torque wrench needs to be recalibrated, or you need to find an 800 pound gorilla in your neighborhood to cinch the lugs up for you.
Also, grease is not a good idea for the lugs, as over time it can contribute to the lugs working loose. Try removing the lug nuts, and running a thread chaser down the studs, and through the lug nuts so they are clear, then re-torque them to spec. It is very important, especially with aluminum wheels, to get them properly torqued.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-22-2006, 07:37 AM
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#3
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Rivet Master
1974 27' Overlander
1954 26' Romany Cruiser
1960 26' Overlander
Rockingham County
, New Hampshire
Join Date: Sep 2004
Posts: 4,410
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]That is correct, Grease is bad gor that aplication!
Anti Seize Never Seize if anything...
__________________
'74 Overlander (T-O-Bee)
'46 Spartan Manor (Rosie)
'54 Cruiser (Bogart)
'60 Overlander (Hoagy)
2007 GMC Sierra 2500 HD Duramax
WBCCI 1754 - AIR # 6281
www.balrgn.com
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10-22-2006, 10:26 AM
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#4
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Rivet Master
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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Torque is an indirect way to determine the amount of stretch when bolting things together. The object is to stretch the bolt by a certain amount(about 1/2 of its elastic modulus) as if it were a giant rubberband. Too little and it will work loose-too tight and the bolt will loose its elasticity and/or possibly break. Torgue measurement is resistance to turning generated by friction on the threads and the nut touching the wheel, as a result, the kind and amount of lubrication on the threads is crucial to getting the right value. Proper torque specifications always denote whether the threads are dry, oiled, anti-seized, etc. For example, if torque values are based on dry threads and you use oil, the extra lubrication will lead to over-torquing. Wheel lugs, in my experience, are usually torqued dry.
Steel wheels are springy and compress when the lugs are tightened helping keep the nuts tight. Alloy wheels don't have any "give" and must be torqued tighter.
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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10-22-2006, 10:28 AM
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#5
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Rivet Master
1973 27' Overlander
Currently Looking...
Jupiter
, Florida
Join Date: Apr 2006
Posts: 2,062
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Fact of fastening - there are dry & wet torque specifacations to consider.
Search these forums for "wet torque" - if the studs or lug nuts are greased or anti-seized there is usually a 15% or 20% or greater reduction in desired foot/pounds torque to achieve the same fastener 'stretch' that provides the clamping force.
Don't subscribe to what I am saying without researching it for yourself.
__________________
The days are short and the night is long and the stars go tumbling by.. . ~Airstream~
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10-22-2006, 03:45 PM
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#6
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Rivet Master
1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
Johnsburg
, Illinois
Join Date: Jul 2005
Posts: 2,944
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Read your manual. Torque is spec. out as dry torque. If you are an average size guy, you will likely need a 1/2 inch drive torque wrench to achieve the required torque. The smaller drive wrenches have too short a lever arm and require considerably more force.
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10-24-2006, 12:48 AM
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#7
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Rivet Master
1960 24' Tradewind
santa barbara
, California
Join Date: Apr 2006
Posts: 1,352
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Went to the Nor Cal ralley this past weekend and some real nice people with an argosy lost their aluminum wheel ,all the studs sheared off .I think they had it worked on recently ,a tire or somthing ,so here we go again with
lugs shearing .The coach had some substantial damage done so thats really
a bummer .i haven't heard as yet of any steel wheel coming off ,and im
pretty sure its due to the wheels ability to compress at the lug as Excella CM
has said .It s the aluminum wheels that are having the studs damaged .
sounds like too much torque again on those studs .Maybe we all need to
be at the tire shop watching to ensure a torque wrench is being used and
used correctly .
Scott of scottanlily
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10-24-2006, 03:52 AM
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#8
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Rivet Master
1976 25' Caravanner
Vintage Kin Owner
Campton
, New Hampshire
Join Date: Feb 2006
Posts: 1,113
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It's a sad note but I have yet to see a tire shop or dealership or repair shop use a torque wrench on wheels, and I have been watching for several decades .
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10-24-2006, 05:20 AM
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#9
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4 Rivet Member
2013 31' Classic
Crossville
, Tennessee
Join Date: Sep 2003
Posts: 461
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you're more right than you know
Ticki2 has spoken more truth than we realize. It is OUR responsibility to ensure the safety of those we meet on the highway, as well as the safety of our aluminum panels from wayward wheels. The people doing tire work on our units are normally minimum wage, high school educated or less, using 450 lbs ft air wrenches, who never heard of lug stretch!
Buy, and religiously use a GOOD torque wrench. All 24 lugs can be checked and torqued in 10 minutes or less. Do the math. An aluminum wheel from Airstream is over $300. A tire is over $100. A side panel installed is over $4500. A torque wrench is less than $100, and our time is virtually free....free time? What Airstreamers love!
__________________
steelbird312 WBCCI #6673 jerry Hodge
2013 31" Classic limited
Have no intention of arriving at the grave safely, but rather to skid in sideways, chocolate in one hand, throttle in the other, totally worn out and screaming
"WOO HOO, WHAT A RIDE!"
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10-24-2006, 10:25 AM
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#10
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4 Rivet Member
2000 31' Land Yacht
Join Date: Sep 2003
Posts: 497
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Sears currently has their torque wrenches on sale.
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10-24-2006, 10:57 AM
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#11
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by ticki2
It's a sad note but I have yet to see a tire shop or dealership or repair shop use a torque wrench on wheels, and I have been watching for several decades .
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I use torque sticks every time I put a wheel on a vehicle. A torque stick is an extension that has a predetermined "give", or "rebound" when using an impact wrench, there are different torques available. The ones for 100 pounds/foot are grey (3/4" hex) or brown (13/16" hex). I am the only one to use them in the shop I work in, the other guys just blast them on with an impact gun, no matter how much I preach about it. Torque sticks may not be perfect, but they are vastly better than just hammering away until the nut won't turn any more.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-24-2006, 11:29 AM
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#12
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Frank S
1973 27' Overlander
peoria
, Illinois
Join Date: Mar 2006
Posts: 316
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Hi--Within the past year every shop I was in that mounted tires used a torque wrench: 2-Firestone, 3-WalMart ( 1 guy torques, and the 2nd guy rechecks the torque), 1-Dexter Axle where I had new axles installed ( 2 torques same as WalMart).--Frank S
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10-26-2006, 07:56 AM
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#13
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Rivet Master
1971 21' Globetrotter
Currently Looking...
Currently Looking...
Currently Looking...
Arvada
, Colorado
Join Date: May 2006
Posts: 3,530
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Be sure to watch. I have made dealers lossen and retorque because they were running the lug nuts down with an impact wrench and then grabbing a torque wrench and checking. I pointed out to the dealer that the lugs were over torqued and putting a torque wrench on after useing an impact only proved that the lugs were AT LEAST the torque value. I also asked how often they had their torque wrenches calibrated and got a blank stare. I always Recheck torque after I get home and have found dealers torque to be off as much as 20flbs. I have to have my Torque wrenches recalabrated once a year and every time its dropped, this is a FAA requirment.
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10-26-2006, 11:09 AM
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#14
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by Aerowood
I have to have my Torque wrenches recalabrated once a year and every time its dropped, this is a FAA requirment.
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I get mine calibrated yearly, and repaired and calibrated if it is dropped. I am very hard of hearing, and can't hear the little "click" a standard torque wrench makes. Mine is electronic, and vibrates the handle when proper torque is reached.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-26-2006, 12:54 PM
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#15
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Steven and Susan
1979 Argosy Minuet 7.3 Metre
Carmel
, California
Join Date: Aug 2006
Posts: 63
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I'm the guy who lost a wheel last week, and all I can say is I'll be watching carefully in the future to ensure that my new wheels are torqued properly.
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10-26-2006, 01:04 PM
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#16
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Rivet Master
2002 27' Safari
Carmel-by-the-Sea
, California
Join Date: Aug 2002
Posts: 1,388
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Next time I'll be a better neighbor and remind you
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10-26-2006, 03:42 PM
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#17
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Rivet Master
1956 22' Safari
2015 27' Flying Cloud
Vintage Kin Owner
Conifer/Evergreen
, Colorado
Join Date: Feb 2002
Posts: 12,702
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Terry, do you realize that last post was your 5,000th?!
Crazy ~
Shari
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10-26-2006, 05:21 PM
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#18
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by InsideOut
Terry, do you realize that last post was your 5,000th?!
Crazy ~
Shari
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Yup. No countdown to 5,000 here--just quietly posting away, it sneaks up on you. There are many others not that far behind, post-wise. We'll have to start a club, or something...
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-26-2006, 05:34 PM
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#19
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Rivet Master
1974 31' Sovereign
Colfax
, North Carolina
Join Date: Jul 2003
Posts: 740
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Way to go Terry on your 5000th posting, and always with good advice!!!
Marie
__________________
When people lie to you, and refuse to honor their word, don't regret trying to follow a dream, new adventures and friends await you.
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10-26-2006, 06:43 PM
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#20
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Round on both ends
1979 31' Excella 500
1975 28' Argosy 28
Rutledge
, Georgia
Join Date: Apr 2005
Posts: 783
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5,000 posts, and rumor has it that Terry WORKS FOR A LIVING. :-)
Lamar
__________________
1975 Argosy 28 "Argosy"
1979 Excella 500 31 "Betsy"
1992 Lincoln Mk 7 LSC
2003 Dodge 2500 Cummins "TowHog"
"Lucy Loosehair" the cat - Airstream mascot
Klaatu barada nikto
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