Home » Public Forums » GMCnet » Rear wheel bearing lash exact procedure (Can't find in X-7425 or X-7725 sup. )
| Rear wheel bearing lash exact procedure [message #308079] |
Sat, 01 October 2016 13:30  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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I want the exact procedure (torque while rotating) then loosen and pin procedure but can't find. I know it has been posted here too.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308080 is a reply to message #308079] |
Sat, 01 October 2016 13:38  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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John, use a torque wrench and tighten the nut to 25 foot pounds. Then,
unscrew the nut 1/2 turn. Using the fingers, turn the nut back to where it
just makes contact, and check the alignment holes for the cotter pin. If it
aligns, put the pin in. You are done. If it does not align, UNSCREW THE NUT
UNTIL IT DOES, then put the pin in. DO NOT OVERTIGHTEN.
JIM Hupy
Salem, Or
78 GMC ROYALE 403
On Oct 1, 2016 11:31 AM, "John R. Lebetski" wrote:
> I want the exact procedure (torque while rotating) then loosen and pin
> procedure but can't find. I know it has been posted here too.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
> Source America First
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: Rear wheel bearing lash exact procedure [message #308082 is a reply to message #308079] |
Sat, 01 October 2016 13:49 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I just did mine - 35 lb-ft, then loose one half turn and lock it there. The reaction arms supply a lock plate for the nut, so it doesn't get turned at all after it's loosened. I lock whatever face is square to a lock tang. I've not had problems with this technique. Whether the extra 10 ftlbs makes a difference, I doubt. If it does, I suspect it's made up for by not tightening the nut after a half-turn loose. The gurus may differ.
Failing to loosen the bolt after torqueing it >will< lead to failure - ask me how I know this.
--johnny
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
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| Re: Rear wheel bearing lash exact procedure [message #308086 is a reply to message #308079] |
Sat, 01 October 2016 14:22 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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25ft/lb to seat was what I needed Jim Hupy. Then without disturbing, loosen, finger tighten and pin. Loosen to alternate hole not tighten. There is a huge wealth of info on YouTube on this-- all of it WRONG. Most of which will be over tightened. But where is this in TZE manual for ref??
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308195 is a reply to message #308184] |
Mon, 03 October 2016 14:47 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Gene,
I'm sorry but I would NOT follow that procedure!
The GMC MM was written SPECIFICALLY for the GMC and while it provides two methods they both specify 25 ft lb.
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of gene Fisher
Sent: Tuesday, October 04, 2016 1:25 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Rear wheel bearing lash exact procedure
Or read here
http://gmc49ers.blogspot.com/2014/03/get-all-torqued-up-for-5.html
At bottom of Last article
On Sunday, October 2, 2016, John R. Lebetski
wrote:
> I think it's really Hub installation with an attached brake drum!
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
> Source America First
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
"Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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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
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308242 is a reply to message #308195] |
Tue, 04 October 2016 07:14 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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I wonder where Gene found that procedure as it references to rotors and not
drums.
On Mon, Oct 3, 2016 at 1:47 PM, Rob Mueller wrote:
> Gene,
>
> I'm sorry but I would NOT follow that procedure!
>
> The GMC MM was written SPECIFICALLY for the GMC and while it provides two
> methods they both specify 25 ft lb.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of gene
> Fisher
> Sent: Tuesday, October 04, 2016 1:25 AM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Rear wheel bearing lash exact procedure
>
> Or read here
> http://gmc49ers.blogspot.com/2014/03/get-all-torqued-up-for-5.html
>
> At bottom of Last article
>
> On Sunday, October 2, 2016, John R. Lebetski
> wrote:
>
>> I think it's really Hub installation with an attached brake drum!
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
>> Source America First
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> "Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
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
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308248 is a reply to message #308195] |
Tue, 04 October 2016 09:18 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Copy?
On Monday, October 3, 2016, Rob Mueller wrote:
> Gene,
>
> I'm sorry but I would NOT follow that procedure!
>
> The GMC MM was written SPECIFICALLY for the GMC and while it provides two
> methods they both specify 25 ft lb.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org ] On
> Behalf Of gene Fisher
> Sent: Tuesday, October 04, 2016 1:25 AM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Rear wheel bearing lash exact procedure
>
> Or read here
> http://gmc49ers.blogspot.com/2014/03/get-all-torqued-up-for-5.html
>
> At bottom of Last article
>
> On Sunday, October 2, 2016, John R. Lebetski >
> wrote:
>
>> I think it's really Hub installation with an attached brake drum!
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
>> Source America First
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> "Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308250 is a reply to message #308248] |
Tue, 04 October 2016 09:29 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Gene,
I do not under your answer. (“Copy?”)
JR Wright
> On Oct 4, 2016, at 10:18 AM, gene Fisher wrote:
>
> Copy?
>
> On Monday, October 3, 2016, Rob Mueller wrote:
>
>> Gene,
>>
>> I'm sorry but I would NOT follow that procedure!
>>
>> The GMC MM was written SPECIFICALLY for the GMC and while it provides two
>> methods they both specify 25 ft lb.
>>
>> Regards,
>> Rob M.
>> USAussie - Downunder
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>>
>>
>> -----Original Message-----
>> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org ] On
>> Behalf Of gene Fisher
>> Sent: Tuesday, October 04, 2016 1:25 AM
>> To: gmclist@list.gmcnet.org
>> Subject: Re: [GMCnet] Rear wheel bearing lash exact procedure
>>
>> Or read here
>> http://gmc49ers.blogspot.com/2014/03/get-all-torqued-up-for-5.html
>>
>> At bottom of Last article
>>
>> On Sunday, October 2, 2016, John R. Lebetski > >
>> wrote:
>>
>>> I think it's really Hub installation with an attached brake drum!
>>> --
>>> John Lebetski
>>> Woodstock, IL
>>> 77 Eleganza II
>>> Source America First
>>>
>>> __
_______________________________________________
GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Rear wheel bearing lash exact procedure [message #308252 is a reply to message #308250] |
Tue, 04 October 2016 10:19 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Need to see an actual copy of what you want me to print
On Tuesday, October 4, 2016, John Wright wrote:
> Gene,
> I do not under your answer. (“Copy?”)
>
> JR Wright
>> On Oct 4, 2016, at 10:18 AM, gene Fisher > wrote:
>>
>> Copy?
>>
>> On Monday, October 3, 2016, Rob Mueller > wrote:
>>
>>> Gene,
>>>
>>> I'm sorry but I would NOT follow that procedure!
>>>
>>> The GMC MM was written SPECIFICALLY for the GMC and while it provides
> two
>>> methods they both specify 25 ft lb.
>>>
>>> Regards,
>>> Rob M.
>>> USAussie - Downunder
>>> AUS '75 Avion - The Blue Streak TZE365V100428
>>> USA '75 Avion - Double Trouble TZE365V100426
>>>
>>>
>>> -----Original Message-----
>>> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org
> ] On
>>> Behalf Of gene Fisher
>>> Sent: Tuesday, October 04, 2016 1:25 AM
>>> To: gmclist@list.gmcnet.org
>>> Subject: Re: [GMCnet] Rear wheel bearing lash exact procedure
>>>
>>> Or read here
>>> http://gmc49ers.blogspot.com/2014/03/get-all-torqued-up-for-5.html
>>>
>>> At bottom of Last article
>>>
>>> On Sunday, October 2, 2016, John R. Lebetski
>>> >
>>> wrote:
>>>
>>>> I think it's really Hub installation with an attached brake drum!
>>>> --
>>>> John Lebetski
>>>> Woodstock, IL
>>>> 77 Eleganza II
>>>> Source America First
>>>>
>>>> __
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: Rear wheel bearing lash exact procedure [message #308253 is a reply to message #308079] |
Tue, 04 October 2016 11:32 |
TR 1
Messages: 348
Registered: August 2015
Location: DFW
Karma: -7
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Senior Member |
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I've always spun the hub while performing the initial torque step. I understood the spinning to allow the bearing to "settle" in, while also squeezing the grease where the rollers meet the race so there is a more uniform film of grease in place when you perform the final tightening.
To assist with this, I always punch out the center cover on the wheel, and then bolt the wheel on to the hub while performing the torque procedure. This allows you to easily spin the wheel while you are performing the initial torque step. With the center cover off the wheel, you can access the spindle nut for torquing.
Bolting the wheel on while torquing also helps for the last step when you hand tighten after backing off... What I do is pound on the tire with my fist while hand tightening. When the bearing is too loose, you will hear/feel the end play as a sort of "rattle" between the bearing and the spindle. When you overtighten, the rattle goes away. I try to tighten the spindle nut till there is just a tiny bit of "rattle". The point right before the "rattle" goes away.
FWIW, I've found this to be more precise than the "hand tight" or "snug" you generally see in domestic vehicle manuals, and even more precise than method where you measure the hub's resistance to spinning with a pull scale, which I've generally seen in import manuals.
The pull scale method never made any sense to me, because if it's cold out, the grease is way thicker than when it's 110, which would change how freely the hub spins. And I'v never seen them post different measurements in the manual to use if it's cold vs hot.
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
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| Re: Rear wheel bearing lash exact procedure [message #308528 is a reply to message #308079] |
Mon, 10 October 2016 20:42 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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To follow up--- about 800 miles at 70-75 it is still quite. Used the MM procedure and used Synpower and a Lisle bearing packer. The outer bearing on the leading rh wheel (curb side) was rough on the inner surface though race and rollers looked ok. I only changed the outer and race as inner was smooth. Makes sense that leading wheel gets the most potholes hammering the bearing.
John Lebetski
Woodstock, IL
77 Eleganza II
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