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Topic: Torquing lug nuts  (Read 556 times) previous topic - next topic

Torquing lug nuts

I went back to TCI to have the lug nuts re torqued after my tire installation. I "helped" the tech so I was right there as he did the hard part of this job. Surprisingly six of them were "loose" .ie. had some movement and two of those were what I considered very loose. Is this normal? Leaving soon for GrandVention and planning a stop en route to check one more time. This is the first time I have replaced tires so I'm looking for information.
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: Torquing lug nuts

Reply #1 –
Interesting thread. I wonder, A) how many of us know what the torque specs are on our different coaches? (B) Do tire stores have torque wrenches anymore, or is this something else we have to drag along to make sure the "pros" with their air guns do it right?  ???
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
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                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Torquing lug nuts

Reply #2 –
On my coach the specs are on the lug nuts themselves and yes they used a torque wrench set to the mid point of the range specified. They did not run them down very tight with the air gun.
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: Torquing lug nuts

Reply #4 –
Did he use some oil on the threads? Here is a picture of the page from the Alcoa manual that deals with hub piloted wheels. I am not sure what year or build number Foretravel started using this style, but our 99' has them.
Don
Quote from: Falconguy –
On my coach the specs are on the lug nuts themselves and yes they used a torque wrench set to the mid point of the range specified. They did not run them down very tight with the air gun. As I was typing this reply, I see Stump posted a link to the PDF. It covers all styles of Alcoa wheels, but the picture below is specifically about the Hub piloted variety.

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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Torquing lug nuts

Reply #5 –
Yes, they did lubricate the nuts with motor oil. I inquired about torque seal on the nuts to have a visual reference but he said no, the only thing they were allowed to do was lube the lug nuts.
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: Torquing lug nuts

Reply #6 –
I do NOT have torque figures for oiled/lubed threads.  It will certainly be lower than for dry, which is what all the specs call for (clean, rust-free and dry).
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Torquing lug nuts

Reply #7 –
Quote from: wolfe10 –
I do NOT have torque figures for oiled/lubed threads.  It will certainly be lower than for dry, which is what all the specs call for (clean, rust-free and dry).

Page 34 (5-2) in the file that stump posted shows the proper torque chart for both dry and lubed. Make sure of whether you have stud piloted or hub piloted as there is a big difference.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Torquing lug nuts

Reply #8 –
Quote from: Pamela & Mike –
Page 34 (5-2) in the file that stump posted shows the proper torque chart for both dry and lubed. Make sure of whether you have stud piloted or hub piloted as there is a big difference.

Mike
Reading the torques is confusing as dry torques are listed for stud piloted and below under the * it says to oil the first 2 threads of stud piloted studs and no torque value under the lubed column for stud piloted. Gland I have hub piloted it is clear.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean
 

Re: Torquing lug nuts

Reply #9 –
Yikes, I have so much to learn.  :D
1993 U300 40ft GV SE
Build # 4344