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[GMCnet] Stud Cleaning Tool [message #243359] Thu, 13 March 2014 15:27 Go to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
I just stumbled across an item that we should probably be using on our OLD
wheel studs since thread condition can have such a big effect on torque
readings:

http://www.counteractbalancing.com/counteract/products/studbrush.html

No purchasing source/price yet.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL
www.gmcwipersetc.com
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Stud Cleaning Tool [message #243368 is a reply to message #243359] Thu, 13 March 2014 16:29 Go to previous messageGo to next message
Jim Galbavy is currently offline  Jim Galbavy   United States
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Registered: August 2007
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Ken,
I see only one problem with this brush. Cleaning the studs with a wire brush is recommended by the government.

Sorry. .... I couldn't help it. Had to say it. Wink

jim galbavy
'73 x-CL ANNIE
Lake Mary, FL
Re: [GMCnet] Stud Cleaning Tool [message #243382 is a reply to message #243368] Thu, 13 March 2014 18:20 Go to previous messageGo to next message
Harry is currently offline  Harry   Canada
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Registered: October 2007
Location: Victoria, BC CANADA
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Senior Member
It looks like the tool used for cleaning battery posts.


Re: [GMCnet] Stud Cleaning Tool [message #243555 is a reply to message #243382] Fri, 14 March 2014 22:28 Go to previous messageGo to next message
Bruce Hart is currently offline  Bruce Hart   United States
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
Senior Member
Went to Direct Tire today to have two tires put on my rig and they used an
air gun with a wire brush and cleaned off the lug bolts. This was the
first time that I had seen anyone do this before.


On Thu, Mar 13, 2014 at 5:20 PM, David H. Jarvis <jarvis210@shaw.ca> wrote:

>
>
> It looks like the tool used for cleaning battery posts.
>
>
>
> --
> "I've always been crazy, but it kept me from going insane"
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Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart 1976 Palm Beach 1977 28' Kingsley La Grange, Wyoming
Re: [GMCnet] Stud Cleaning Tool [message #243568 is a reply to message #243359] Sat, 15 March 2014 00:21 Go to previous messageGo to next message
WildBill   Canada
Messages: 232
Registered: January 2014
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Yeah never seen one. Does look the same as a post cleaner. I just lube and run the nut. The ones an impact has to work at a brush won't help.
Re: [GMCnet] Stud Cleaning Tool [message #243619 is a reply to message #243568] Sat, 15 March 2014 14:21 Go to previous messageGo to next message
mikethebike is currently offline  mikethebike   United States
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Registered: January 2014
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As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.
Re: [GMCnet] Stud Cleaning Tool [message #243643 is a reply to message #243619] Sat, 15 March 2014 17:43 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Mike,

I'm sorry but I'm going to disagree with you on this.

You can find the instructions on tightening the OEM wheel stud nuts in MM X-7525 / Section 10 - Wheels & Tires / Page 10-2 / Figure
2 - Wheel Stud Tightening Sequence. However, the MM notes to torque the wheel studs to 250 ft lb it has been noted here on the
GMCnet that's too high. I checked MM X-7625, MM X-7625; and the Service Bulletins for Wheels and Tires but couldn't find anything
from GMC lowering that torque. Anyone know where the "correct" torque can be found?

The procedure for Alcoa wheels is NOT the same; it can be found here: http://www.gmcmotorhome.com/tech/alcoa_wheels/index.html

It has been noted here that when you take your GMC into a tire store to have the tires replaced not to allow the technicians to use
an impact wrench to torque the wheel studs. Obviously you'll have to hang around to make sure they follow your instructions.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: mike foster

As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on
wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we
are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar
on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Stud Cleaning Tool [message #243647 is a reply to message #243359] Sat, 15 March 2014 18:27 Go to previous messageGo to next message
WildBill   Canada
Messages: 232
Registered: January 2014
Karma: 1
Senior Member
I don't know about that, my impact is set for a lower torque level and when it's back on the ground it gets a torque wrench. Don't trust the rattle bars but if I worked flat rate might buy a set.
Re: [GMCnet] Stud Cleaning Tool [message #243675 is a reply to message #243619] Sat, 15 March 2014 19:30 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Entirely coincidentally, a visiting GMC friend just told me, within the
past hour, the tale of his Suburban and Avion travel trailer, many years
ago: After putting new Michelins on the Suburban, he and wife headed south
towing the Avion. As he started across a bridge, a rear wheel on the
Suburban sheared all of the studs (which he KNEW were TIGHT, and had just
visually and "kick" checked at a rest stop) and jumped over into the water
below the bridge. The Suburban and Avion continued a full bridge width
course to the other end of the bridge, where the Avion rolled over,
releasing the Suburban to finally come to a halt in the median headed back
home.

That friend, owner of a truck and RV repair facility states that neither he
nor anyone working for him has ever again tightened a lug nut without a
torque wrench. I understand why. All of us might consider it.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL
www.gmcwipersetc.com


On Sat, Mar 15, 2014 at 3:21 PM, mike foster <mafoster1@bellsouth.net>wrote:

>
>
> As often as the wheels are off why not just use a cheap brass brush and
> air? To tell you the truth I don't use a torque wrench on wheel studs. I
> just pull them down tight. Drive the vehicle about 25 miles and retighten.
> It's not the connecting rod cap bolts we are talking about and I have
> serious doubts most tire stores measure the torque....for if they did Iwouldn't need a 48" cheater bar on a 30" breaker bar to get the lugs off
> when I rotate the tires the first time after new ones are installed.
> __
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Stud Cleaning Tool [message #243687 is a reply to message #243359] Sat, 15 March 2014 20:43 Go to previous messageGo to next message
Steve is currently offline  Steve   United States
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
Senior Member
I just re-torqued my Alcoa lug nuts today. First time was after 100 miles. This time after the second 100 miles. I was surprised at how lose a few of the nuts were the first time. Much better this time. Next re-torque scheduled at 500 miles. This was the procedure recommended by Ken Frey.

1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
Re: [GMCnet] Stud Cleaning Tool [message #243822 is a reply to message #243619] Sun, 16 March 2014 18:06 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
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Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
I notice the high volume minimumwage pklaces - costco, walmart, etc. have gone to specific extensions they use on their impact wrenches.  They've a wall board, and they olook up the vehicle and wheel, and then pick the listed extention.  I have the idea that each extentionhas a different 'speringiness'n and thus will apply a specific torque using their wrench.  Can anyone confirm or deny?
 
--johnny
 


________________________________
From: mike foster <mafoster1@bellsouth.net>
To: gmclist@temp.gmcnet.org
Sent: Saturday, March 15, 2014 3:21 PM
Subject: Re: [GMCnet] Stud Cleaning Tool




As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.

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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] Stud Cleaning Tool [message #243826 is a reply to message #243822] Sun, 16 March 2014 18:22 Go to previous messageGo to next message
jhb1 is currently offline  jhb1   Canada
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Registered: February 2004
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I can confirm this is what is used up here in the great white north
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=646363&group_ID=675680&store=snapon-store&dir=catalog


Johnny Bridges wrote on Sun, 16 March 2014 19:06

I notice the high volume minimumwage pklaces - costco, walmart, etc. have gone to specific extensions they use on their impact wrenches.  They've a wall board, and they olook up the vehicle and wheel, and then pick the listed extention.  I have the idea that each extentionhas a different 'speringiness'n and thus will apply a specific torque using their wrench.  Can anyone confirm or deny?
 
--johnny
 


________________________________
From: mike foster <mafoster1@bellsouth.net>
To: gmclist@temp.gmcnet.org
Sent: Saturday, March 15, 2014 3:21 PM
Subject: Re: [GMCnet] Stud Cleaning Tool




As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.

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John H. Bell
77 Royale; QuadBag,Manny OneTon,Honda EV4010, FITech
Montreal Qc.
Re: [GMCnet] Stud Cleaning Tool [message #243831 is a reply to message #243826] Sun, 16 March 2014 18:54 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
G'day,

John, nice find!

For those of us with Alcoa wheels this is the adapter we'd need:

http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=644741&group_ID=675866&store=snapon-store&dir=catalog

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: jhb1

I can confirm this is what is used up here in the great white north
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=646363&group_ID=675680&store=snapon-store&dir=catalog

John

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Stud Cleaning Tool [message #243838 is a reply to message #243826] Sun, 16 March 2014 19:21 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
Them's the type.  If Snap-On makes them, they prolly work correctly.
 
Thanks,
 
Johnny
 


________________________________
From: jhb1 <jhbmjk@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Sunday, March 16, 2014 7:22 PM
Subject: Re: [GMCnet] Stud Cleaning Tool




I can confirm this is what is used up here in the great white north
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=646363&group_ID=675680&store=snapon-store&dir=catalog


Johnny Bridges wrote on Sun, 16 March 2014 19:06
> I notice the high volume minimumwage pklaces - costco, walmart, etc. have gone to specific extensions they use on their impact wrenches.  They've a wall board, and they olook up the vehicle and wheel, and then pick the listed extention.  I have the idea that each extentionhas a different 'speringiness'n and thus will apply a specific torque using their wrench.  Can anyone confirm or deny?
>  
> --johnny
>  

>
> ________________________________
>  From: mike foster <mafoster1@bellsouth.net>
> To: gmclist@temp.gmcnet.org
> Sent: Saturday, March 15, 2014 3:21 PM
> Subject: Re: [GMCnet] Stud Cleaning Tool

>
>
>
> As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.
>
> _______________________________________________
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> Unsubscribe or Change List Options:
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--
John H. Bell
77 Royale
Montreal Qc.

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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] Stud Cleaning Tool [message #243852 is a reply to message #243643] Sun, 16 March 2014 20:09 Go to previous messageGo to next message
mikethebike is currently offline  mikethebike   United States
Messages: 331
Registered: January 2014
Karma: 0
Senior Member
I didn't say there was no torque specification for the wheels....I said the tire guys don't abide by them.

BIG difference. EVERY screw, bolt and nut made has a torque spec.

I don't allow tire guys to touch my aluminum rims on any vehicle I own. I change my own motorcycle tires with a H/F changer and balance them with Dyna-Beads.

USAussie wrote on Sat, 15 March 2014 17:43

Mike,

I'm sorry but I'm going to disagree with you on this.

You can find the instructions on tightening the OEM wheel stud nuts in MM X-7525 / Section 10 - Wheels & Tires / Page 10-2 / Figure
2 - Wheel Stud Tightening Sequence. However, the MM notes to torque the wheel studs to 250 ft lb it has been noted here on the
GMCnet that's too high. I checked MM X-7625, MM X-7625; and the Service Bulletins for Wheels and Tires but couldn't find anything
from GMC lowering that torque. Anyone know where the "correct" torque can be found?

The procedure for Alcoa wheels is NOT the same; it can be found here: http://www.gmcmotorhome.com/tech/alcoa_wheels/index.html

It has been noted here that when you take your GMC into a tire store to have the tires replaced not to allow the technicians to use
an impact wrench to torque the wheel studs. Obviously you'll have to hang around to make sure they follow your instructions.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: mike foster

As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on
wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we
are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater bar
on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.

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[Updated on: Sun, 16 March 2014 20:12]

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Re: [GMCnet] Stud Cleaning Tool [message #243856 is a reply to message #243852] Sun, 16 March 2014 20:16 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Mike,

With all due respect if you scroll down to the first message below you will find the following sentences.

"To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and
retighten."

That's what I was disagreeing with.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of mike foster
Sent: Monday, March 17, 2014 12:10 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Stud Cleaning Tool

I didn't say there was no torque specification for the wheels....I said the tire guys don't abide by them.

BIG difference. EVERY screw, bolt and nut made has a torque spec.

USAussie wrote on Sat, 15 March 2014 17:43
> Mike,
>
> I'm sorry but I'm going to disagree with you on this.
>
> You can find the instructions on tightening the OEM wheel stud nuts in MM X-7525 / Section 10 - Wheels & Tires / Page 10-2 /
Figure
> 2 - Wheel Stud Tightening Sequence. However, the MM notes to torque the wheel studs to 250 ft lb it has been noted here on the
> GMCnet that's too high. I checked MM X-7625, MM X-7625; and the Service Bulletins for Wheels and Tires but couldn't find anything
> from GMC lowering that torque. Anyone know where the "correct" torque can be found?
>
> The procedure for Alcoa wheels is NOT the same; it can be found here: http://www.gmcmotorhome.com/tech/alcoa_wheels/index.html
>
> It has been noted here that when you take your GMC into a tire store to have the tires replaced not to allow the technicians to
use
> an impact wrench to torque the wheel studs. Obviously you'll have to hang around to make sure they follow your instructions.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: mike foster
>
> As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on
> wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we
> are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater
bar
> on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.
>

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Stud Cleaning Tool [message #243860 is a reply to message #243856] Sun, 16 March 2014 20:30 Go to previous messageGo to next message
mikethebike is currently offline  mikethebike   United States
Messages: 331
Registered: January 2014
Karma: 0
Senior Member
Ok, but why the quote from the manual? I have a manual, I just don't always follow it!

Kidding....wheels need to be tight enough but not too tight and I don't think I'll over tighten them at my age.

USAussie wrote on Sun, 16 March 2014 20:16

Mike,

With all due respect if you scroll down to the first message below you will find the following sentences.

"To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and
retighten."

That's what I was disagreeing with.

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of mike foster
Sent: Monday, March 17, 2014 12:10 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Stud Cleaning Tool

I didn't say there was no torque specification for the wheels....I said the tire guys don't abide by them.

BIG difference. EVERY screw, bolt and nut made has a torque spec.

USAussie wrote on Sat, 15 March 2014 17:43
> Mike,
>
> I'm sorry but I'm going to disagree with you on this.
>
> You can find the instructions on tightening the OEM wheel stud nuts in MM X-7525 / Section 10 - Wheels & Tires / Page 10-2 /
Figure
> 2 - Wheel Stud Tightening Sequence. However, the MM notes to torque the wheel studs to 250 ft lb it has been noted here on the
> GMCnet that's too high. I checked MM X-7625, MM X-7625; and the Service Bulletins for Wheels and Tires but couldn't find anything
> from GMC lowering that torque. Anyone know where the "correct" torque can be found?
>
> The procedure for Alcoa wheels is NOT the same; it can be found here: http://www.gmcmotorhome.com/tech/alcoa_wheels/index.html
>
> It has been noted here that when you take your GMC into a tire store to have the tires replaced not to allow the technicians to
use
> an impact wrench to torque the wheel studs. Obviously you'll have to hang around to make sure they follow your instructions.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: mike foster
>
> As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on
> wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we
> are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater
bar
> on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.
>

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Re: [GMCnet] Stud Cleaning Tool [message #243861 is a reply to message #243860] Sun, 16 March 2014 20:37 Go to previous messageGo to next message
k2gkk is currently offline  k2gkk   United States
Messages: 4452
Registered: November 2009
Karma: -8
Senior Member
The GMC manuals give torque specs for the OEM, hub-centered steel wheels. General recommendations for alloy wheels runs around 140 ft-lbs instead of 250.

Mac in OKC
Money Pit

Sent from my iPad

> On Mar 16, 2014, at 20:31, "mike foster" <mafoster1@bellsouth.net> wrote:
>
>
>
> Ok, but why the quote from the manual? I have a manual, I just don't always follow it!
>
> Kidding....wheels need to be tight enough but not too tight and I don't think I'll over tighten them at my age.
>
> USAussie wrote on Sun, 16 March 2014 20:16
>> Mike,
>>
>> With all due respect if you scroll down to the first message below you will find the following sentences.
>>
>> "To tell you the truth I don't use a torque wrench on wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and
>> retighten."
>>
>> That's what I was disagreeing with.
>>
>> Regards,
>> Rob M.
>> Sydney, Australia
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>>
>> -----Original Message-----
>> From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of mike foster
>> Sent: Monday, March 17, 2014 12:10 PM
>> To: gmclist@temp.gmcnet.org
>> Subject: Re: [GMCnet] Stud Cleaning Tool
>>
>> I didn't say there was no torque specification for the wheels....I said the tire guys don't abide by them.
>>
>> BIG difference. EVERY screw, bolt and nut made has a torque spec.
>>
>> USAussie wrote on Sat, 15 March 2014 17:43
>>> Mike,
>>>
>>> I'm sorry but I'm going to disagree with you on this.
>>>
>>> You can find the instructions on tightening the OEM wheel stud nuts in MM X-7525 / Section 10 - Wheels & Tires / Page 10-2 /
>> Figure
>>> 2 - Wheel Stud Tightening Sequence. However, the MM notes to torque the wheel studs to 250 ft lb it has been noted here on the
>>> GMCnet that's too high. I checked MM X-7625, MM X-7625; and the Service Bulletins for Wheels and Tires but couldn't find anything
>>> from GMC lowering that torque. Anyone know where the "correct" torque can be found?
>>>
>>> The procedure for Alcoa wheels is NOT the same; it can be found here: http://www.gmcmotorhome.com/tech/alcoa_wheels/index.html
>>>
>>> It has been noted here that when you take your GMC into a tire store to have the tires replaced not to allow the technicians to
>> use
>>> an impact wrench to torque the wheel studs. Obviously you'll have to hang around to make sure they follow your instructions.
>>>
>>> Regards,
>>> Rob M.
>>> Sydney, Australia
>>> AUS '75 Avion - The Blue Streak TZE365V100428
>>> USA '75 Avion - Double Trouble TZE365V100426
>>>
>>> -----Original Message-----
>>> From: mike foster
>>>
>>> As often as the wheels are off why not just use a cheap brass brush and air? To tell you the truth I don't use a torque wrench on
>>> wheel studs. I just pull them down tight. Drive the vehicle about 25 miles and retighten. It's not the connecting rod cap bolts we
>>> are talking about and I have serious doubts most tire stores measure the torque....for if they did I wouldn't need a 48" cheater
>> bar
>>> on a 30" breaker bar to get the lugs off when I rotate the tires the first time after new ones are installed.
>>
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Re: [GMCnet] Stud Cleaning Tool [message #243869 is a reply to message #243861] Sun, 16 March 2014 22:37 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
Messages: 4508
Registered: April 2011
Karma: 39
Senior Member
k2gkk wrote on Sun, 16 March 2014 20:37

The GMC manuals give torque specs for the OEM, hub-centered steel wheels. General recommendations for alloy wheels runs around 140 ft-lbs instead of 250.

Mac in OKC
Money Pit
Is there a metalurgist or other expert on GMCNet that can tell us why 140 ft-lbs holds an aluminum rim just fine, but it takes 250 ft-lbs to hold a steel rim?

Also, I hate talking a vehicle to a professional tire shop because they always tightn the lugs down so tight you can't get them off when you have a flat tire on the side of the road. Not all of us carry a pneumatic impact wrench everywhere we go.

I bent the OEM lug wrench taking the wheels off the CanyonLands.
Re: [GMCnet] Stud Cleaning Tool [message #243875 is a reply to message #243869] Sun, 16 March 2014 23:30 Go to previous messageGo to previous message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
When you tighten the lugs on the steel wheels you have to overcome the friction of the built in flat surface (non movable washer area) of the lug nut. On the aluminum wheels that washer moves on the nut so most of the added friction is non-existant.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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