Author Topic: Loose lug nuts  (Read 644 times)

Offline Jim Eh.

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Re: Loose lug nuts
« Reply #15 on: June 01, 2018, 09:16:47 AM »
You cannot test with a torque wrench. As mentioned above, your wrench could be set at say 450 ft/lb, and click. That tells you that the nut is at least at 450. But it could've been tightened to 600 or 800 and you wouldn't know.

To do it right, you have to loosen the nuts, then tighten with the wrench to the proper torque. Then re-torque after a few hundred miles.

JC

Pretty important step. If you find a nut or two had come loose on the re-torque, keep checking until they have fully seated. If they don't ... time for new studs and nuts.
"Some days it's just not worth chewing through the restraints"
Jim Eh.
1996 MC12
6V92TA / HT741D
Winnipeg, MB.

Offline eagle19952

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Re: Loose lug nuts
« Reply #16 on: June 01, 2018, 09:47:59 AM »
Pretty important step. If you find a nut or two had come loose on the re-torque, keep checking until they have fully seated. If they don't ... time for new studs and nuts.

If the nuts have been over torqued 100%...the threads are stretched...

1 inch off
1/2 inch on
torque.

Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 N, DD, Allison on 24.5's 12kw Kubota.

Offline DominicM

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Re: Loose lug nuts
« Reply #17 on: June 01, 2018, 03:44:44 PM »
At work I verify torque at times,  we would use a patern specified by the flange manufacture followed but another round starting at number one going clockwise for a single click until a complete round can be completed without additional movement.  After that we would follow up by 3 more bolt tightening.

I have contacted MCI about purchasing new Air bags, still trying to locate 2 rear brake chambers. They do not have the studs, inner and outer lug nuts.

I need to make a trip to MD and back to Texas and then I would like to make the replacement.
67 MCI 5A
I live in Nashville,  and Reside in my 5A in Big Spring TX for work at the moment,  Will update as I move around.

Offline chessie4905

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Re: Loose lug nuts
« Reply #18 on: June 01, 2018, 06:17:40 PM »
Luke should be able to get them. If your chambers are dd3's, they are still available as rebuilt. Try busfixx.com as one source.
GMC h8h 649#028 (4905)
Pennsylvania-central