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Old 05-31-2014, 12:30 PM   #127
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I see the engineer in the video waxed the washer and the threads. Should I have my lugs and studs waxed?
Brazilian?
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Old 05-31-2014, 12:38 PM   #128
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The most reliable way to measure proper fastener tightening is by measuring the stretch of the bolt or stud. Unfortunately that can be difficult in the field. Torque is the next best method for field application but as you can see it is far from perfect.

Years ago while working in power plants the large bolts on steam turbines, 6" to 8" dia. and several feet long, had a hole drilled down the center. We inserted heaters to heat the bolt to tighten the nut and then after it cooled we used a micrometer to measure the length. It was time consuming but can you imagine the size of the torque wrench you would need.
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Old 06-03-2014, 04:23 PM   #129
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Did you get the wheel re-installed?
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Old 06-03-2014, 09:05 PM   #130
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Did you get the wheel re-installed?
Yes we did; nothing writing a healthy check didn't cure. We were very fortunate just the same.
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Old 06-04-2014, 07:18 PM   #131
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Brad,

What is the takeaway message based on your "experience " on this situation?

Not expecting an engineering report, just what you recommend.

Gary
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Old 06-04-2014, 08:22 PM   #132
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Brad,

What is the takeaway message based on your "experience " on this situation?

Not expecting an engineering report, just what you recommend.

Gary
Heck yes, mindless inquirers want to know.
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Old 06-05-2014, 08:50 PM   #133
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Brad,

What is the takeaway message based on your "experience " on this situation?

Not expecting an engineering report, just what you recommend.

Gary
1. I liked the blue wheels better than the black ones.

2. If you have to break down, it doesn't suck to break down in the keys.

3. I now know more (or actually less) about torque than I ever wanted.

Seriously:

1. This forum and its members rock. Thank you. Great counsel, rapid response, fabulous camaraderie.

2. I now own (and will carry) a torque wrench, and will be more diligent about checking torque. Now having said that, I have pulled (multiple) Airstreams for over 10 years and would venture a guess of having towed 50-100k miles, and this is a first experience for me losing a wheel - or for that matter even having a loose lug nut (if that even happened).

3. With all I have learned about torque (some great articles and videos on this thread), it seems like torque, and tension, and clamping values, and all the other terms used, make this whole subject one that probably deserves more attention paid to the subject by everyone who tows, from people and resources far more knowledgeable then me.

I will never know the exact cause of my wheel shearing off, but I sure don't want it to happen to me or anyone else. We were just lucky no one was injured or killed. Perhaps a primer on tightening Airstream wheels would be good general knowledge, but for me checking torque will be on my prep list now.
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Old 06-05-2014, 08:58 PM   #134
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1. I liked the blue wheels better than the black ones.



1. This forum and its members rock. Thank you.
and this is why the term, "to each his own" was invented...
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Old 06-28-2014, 06:56 AM   #135
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I saw it happen yesterday.

Driving home last evening coming out of Charleston on I-26 in the RH lane a contractor's pickup and tandem axle trailer with a scissors platform man lift on the bed. I was in the passing lane still behind the rig and the whole trailer on the curb side sorta jumps up in the air maybe a foot of so, bunch of dust and what looked like dirt flying. Grab some brakes watching for out of control rig. Next the loose wheel was seen bouncing up and down and get this, it continued to roll straight ahead, it somehow didn't do a football tumble. The driver maintained control, slowed and pulled onto the shoulder. The remaining wheel was throwing some smoke, not sure of the source. By this time I was safely past the incident and they safely were off the road. But that trailer jumped into the air when that wheel came off.
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Old 06-28-2014, 10:13 AM   #136
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Our trailer may have jumped at the time, but I was napping - had a rope tied to the steering wheel to keep us going straight, so will never know.
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Old 06-28-2014, 02:56 PM   #137
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You have airbags, right, Nilesrob?
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Old 06-28-2014, 04:41 PM   #138
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I did not read the complete tread but am I to believe all 5 studs Sheared off or did the nuts just come loose?

I have seen the nuts loosen on the passenger side. That is why Chrysler used to use left hand threaded lugs on that side of the car.
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Old 06-28-2014, 05:47 PM   #139
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Sheared off, smooth as a baby's bum.
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Old 06-28-2014, 06:03 PM   #140
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Was that wheel centered by a boss on the drum fitted to the center hole of the wheel or just centered the studs. If the latter it would shear off over time.

The studs are not designed to take the vertical shock loads of the road but rather just to hold the wheel on the drum.
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