|
|
09-17-2015, 12:26 PM
|
#1
|
Senior Member
Join Date: Jan 2015
Location: IN
Posts: 200
|
Need lug nut torque specs
I'm in need of lug nut torque specs. We have a MicroLite 23LB which I believe is the sister camper to the Rockwood 2306.
__________________
2011 MicroLite 23LB
2012 Ram 1500 Crew Cab
|
|
|
09-17-2015, 05:33 PM
|
#2
|
Senior Member
Join Date: Jun 2012
Posts: 10,907
|
During my PDI, the tech told me 140 lb-ft on the aluminum wheels and 110 lb-ft on the steel spare. But I didn't see any numbers in any of the paper work I got with the camper.
So who knows?
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
|
|
|
09-17-2015, 05:42 PM
|
#3
|
Left Coast
Join Date: Dec 2014
Location: vancouver,washington
Posts: 15,649
|
Was just look'n at the dealer 1/2 hour ago, on the new ones the tag you could read for alum wheels, said 140 lbs.
|
|
|
09-17-2015, 05:47 PM
|
#4
|
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
|
Quote:
Originally Posted by rockfordroo
During my PDI, the tech told me 140 lb-ft on the aluminum wheels and 110 lb-ft on the steel spare. But I didn't see any numbers in any of the paper work I got with the camper.
So who knows?
|
Weird, didn't know the stud could tell the difference and max on a 1/2" stud is still 120lb/ft. I torque mine to 110lb/ft.
|
|
|
09-17-2015, 06:24 PM
|
#5
|
Senior Member
Join Date: Jan 2015
Location: IN
Posts: 200
|
Ok just got home and dug out the owners manual for the AL-KO axles and here is what they recommend
__________________
2011 MicroLite 23LB
2012 Ram 1500 Crew Cab
|
|
|
09-17-2015, 09:14 PM
|
#6
|
Senior Member
Join Date: Jun 2012
Posts: 10,907
|
It says "Always use the wheel manufacturers recommendation." But what is that??
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
|
|
|
09-17-2015, 09:38 PM
|
#7
|
Commercial Member
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,889
|
Quote:
Originally Posted by OldCoot
Weird, didn't know the stud could tell the difference and max on a 1/2" stud is still 120lb/ft. I torque mine to 110lb/ft.
|
It isn't the stud but fundamentals of wheel design.
Steel wheels basically function like big " Belleville washer" so we are looking at the force needed to deform and pre-load the stud tension.
Aluminum centers are depending the stretch of the stud to provide the pre-load as the solid aluminum does not deflect.
Wheel studs are basically Grade 8 hardware so they have a torque limit or you will over stretch them which can result in stud fracture. There are tables available for max torque based on stud size.
Also stud torque can be messed up if regular oil or grease is used so studs and nuts should be clean and only lubed with WD-40 or Never-Seize.
__________________
.Write a blog on RV tire application RV Tire Safety. 48 years experience as tire design & forensic engineer. My RV Freelander 23QB on Chevy 4500 chassis. Giving seminars on RV Tire applications (not selling)@ FMCA Conventions. Mar 20-22 Tucson AZ
|
|
|
09-17-2015, 10:11 PM
|
#8
|
Member
Join Date: Jul 2015
Posts: 30
|
Owners manual has a section on tire safety.. Wildwood Heritage Glenn 299RE says to torque on final pass 85 -95 foot pounds. I had to buy tires on a trip with the old camper, and I torqued them to 100 foot pounds at the tire shop. 35 miles down the road, I decided to re-torque them.. good thing, they needed an eighth of a turn to get back to the 100 foot pound reading.. 50 miles later we got to the campground, and I went around again, and again got another eighth turn.. at home, I got true reading with no turn on the nut required.. So if you put new tires on, It might pay to look at them periodically.
|
|
|
09-18-2015, 04:18 PM
|
#9
|
Senior Member
Join Date: Jul 2013
Location: Franklin, TN
Posts: 746
|
While spring cleaning the Flagstaff in prep for Goshen trip, I found a sticker on the storage compartment by the jack handle that stated wheels where torqued to 90 ft-pounds. This is where the wheels were torqued to and checked prior to the trip when tires were replaced. Did check wheels in route and found 3 nuts out of the set that needed a bit more tightening. OC would be proud, carry torque wench and 1/2 sockets on TV on all trips! Have AL wheels on the Flagstaff.
|
|
|
09-18-2015, 05:56 PM
|
#10
|
Senior Member
Join Date: Aug 2009
Posts: 627
|
Quote:
Originally Posted by rockfordroo
It says "Always use the wheel manufacturers recommendation." But what is that??
|
It says "Always use the wheel manufacturer’s recommendation but do not exceed 120 ft/lbs on 1/2" studs. Never exceed the wheel manufacturer specifications."
|
|
|
09-18-2015, 08:25 PM
|
#11
|
Senior Member
Join Date: Jun 2012
Posts: 10,907
|
Quote:
Originally Posted by Filthy Beast
\
Quote:
Originally Posted by rockfordroo View Post
It says "Always use the wheel manufacturers recommendation." But what is that??
|
It says "Always use the wheel manufacturer’s recommendation but do not exceed 120 ft/lbs on 1/2" studs. Never exceed the wheel manufacturer specifications."
|
Yeah, that's what I said. But what IS the manufacturers specifications?
No one seems to know.
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
|
|
|
09-19-2015, 03:47 PM
|
#12
|
Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,233
|
I have a spec sheet from HiSpec who makes my aluminum wheels and it says to torque between 90 and 120 ft-lbs. for 1/2" studs.
|
|
|
09-19-2015, 04:07 PM
|
#13
|
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
|
Quote:
Originally Posted by Tireman9
It isn't the stud but fundamentals of wheel design...
|
Doesn't matter what wheel you use or the wheel design, stud torque is stud torque and a 1/2" stud has a max of 120lb/ft of torque. PERIOD!!!
|
|
|
09-19-2015, 04:15 PM
|
#14
|
Senior Member
Join Date: Sep 2015
Posts: 3,464
|
There can be a tq difference between steel and aluminum wheels.
2008 F350 CCSB V10
2016 Sabre 36QBOK
__________________
2017 Dynamax Isata 4
|
|
|
09-20-2015, 11:53 AM
|
#15
|
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
|
Quote:
Originally Posted by Kenny kustom
There can be a tq difference between steel and aluminum wheels.
|
Explain that please how the stud/lugnut knows the difference if you are torqueing to 75% proof load of the stud. Steel wheels will seldom require re-torqueing to seat while alum wheels will usually require 2-3 re-torqueing to finally seat, but the torque requirements of the stud remain constant.
|
|
|
09-20-2015, 02:06 PM
|
#16
|
Senior Member
Join Date: Sep 2015
Posts: 3,464
|
The steel wheel will deflect while torquing. Alum will not.
Steel wheels will use a acorn nut and alum will have a shoulder.
2008 F350 CCSB V10
2016 Sabre 36QBOK
__________________
2017 Dynamax Isata 4
|
|
|
09-20-2015, 02:13 PM
|
#17
|
Senior Member
Join Date: Sep 2015
Posts: 3,464
|
The tq specs for my wrangler.
Just as an example.
2008 F350 CCSB V10
2016 Sabre 36QBOK
__________________
2017 Dynamax Isata 4
|
|
|
09-20-2015, 02:14 PM
|
#18
|
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
|
Quote:
Originally Posted by Kenny kustom
The steel wheel will deflect while torquing. Alum will not.
Steel wheels will use a acorn nut and alum will have a shoulder.
|
Steel wheels on my truck, but no acorn nuts, alum wheels on trailer and no shoulders, both sets of lug nuts are chamfered on one side and flat on the other. Regardless, the wheels do NOT change the torque spec on the studs is all I'm trying to get across.
|
|
|
09-20-2015, 02:18 PM
|
#19
|
Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
|
Quote:
Originally Posted by Kenny kustom
|
Kenny, it still doesn't change the max torque on a 1/2" wheel stud. Different torques for different applications, but it DOES NOT CHANGE the MAX stud torque.
|
|
|
09-20-2015, 02:20 PM
|
#20
|
Left Coast
Join Date: Dec 2014
Location: vancouver,washington
Posts: 15,649
|
The log nuts on my alum wheels are just a tapered type compression style like any steel wheel
|
|
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|