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Rear Wheel Seal [message #325364] Tue, 24 October 2017 07:21 Go to next message
Bruce Hart is currently offline  Bruce Hart   United States
Messages: 1500
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
Senior Member
Would like a little advice here. I am currently doing a brake job and replacing the four bearings and inner seals on
the four rear wheels. I have 9 Napa seals 21771 that interferers with a 1/4" dowel pin. I checked with all of the
parts stores in my area and all the seals interfered with the lip. In my bag of spare parts I have an original
seal #3857731 and it also interferes with the lip. The only difference that I see is the original seal's chamfer is
.060" wide where the Napa seal is .090" wide. If I remove .030" from the Napa seal would that give me the sufficient
clearance so the bearing won't rub and contaminate the bearing with metallic fillings from the seal.

I did a pre-test on the rear spindle with the Napa seal and could not see how the bearing could rub on the chamfer,
but the bearing was not under load either.


Bruce Hart 1976 Palm Beach 1977 28' Kingsley La Grange, Wyoming
Re: Rear Wheel Seal [message #325366 is a reply to message #325364] Tue, 24 October 2017 08:24 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
Senior Member
My understanding from Dave Lenzi with the rear seals, if you press them in flush with the hub the seal will be positioned too far inward and will not seal on the axle. Do not press the seal all the way into the hub, leave it slightly proud of the hub and all is good.

It is the front seals that can touch the bearing and get metal filings into the bearings.

Check with Dave Lenzi to be sure this is correct.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: Rear Wheel Seal [message #325367 is a reply to message #325366] Tue, 24 October 2017 08:37 Go to previous messageGo to next message
lqqkatjon is currently offline  lqqkatjon   United States
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
Senior Member
Last summer dave lenzi gave me the same advice. Buy seals from napa, and do not put them
Flush. He has a spec of exactly how far out to leave them, but I think "proud" is an ok term as well.



Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
Re: [GMCnet] Rear Wheel Seal [message #325372 is a reply to message #325366] Tue, 24 October 2017 10:00 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
G'day,

Bruce is correct; at the GMCMI Convention in Elkhart I bought a tool from him for $40.00 which seats the seals at the proper depth.

Dave is a VERY busy man; you can contact him on eight 1 zero - 6 five 3 - three 9 zero 2 but keep that in mind and don't tie him up
with idle chit chat!

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bruce Hislop
Sent: Tuesday, October 24, 2017 8:25 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Rear Wheel Seal

My understanding from Dave Lenzi with the rear seals, if you press them in flush with the hub the seal will be positioned too far
inward and will not seal on the axle. Do not press the seal all the way into the hub, leave it slightly proud of the hub and all is
good.

It is the front seals that can touch the bearing and get metal filings into the bearings.

Check with Dave Lenzi to be sure this is correct.

Bruce Hislop


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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: Rear Wheel Seal [message #325376 is a reply to message #325364] Tue, 24 October 2017 10:55 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
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Registered: January 2004
Location: Menomonie, WI
Karma: 10
Senior Member
Seal should stand "proud" about .060.

Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: [GMCnet] Rear Wheel Seal [message #325379 is a reply to message #325376] Tue, 24 October 2017 12:04 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
Larry,

It's my understanding that the front wheel seal should be proud also -- but
I never found a spec. for it in a manual. When we did one here recently I
made a seating tool to set 0.040", and arbitrary amount which seemed
adequate. Do you know the correct setting?

I THINK I'd already made a tool for the rear seals; I'll have to hunt it up
and make sure it's set to your 0.060". If not, I'll chuck the disc back in
the lathe and correct it. What I'm a little concerned about there, though,
is whether the seal will then clear Manny's reaction arm torque box. So
many possible "gotcha's"! :-)

Ken H.


On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:

> Seal should stand "proud" about .060.
> --
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Rear Wheel Seal [message #325380 is a reply to message #325379] Tue, 24 October 2017 12:14 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
Is the problem with the new seals the depth of the metal ring, or the shape
of the seal rubber? If the former, installing it proud should make no
difference. If the latter, would a thin spacer behind the spindle correct
any issue with the torque box?

Given that this spindle was used on two or three bazillion front ends, is
there a solution (besides lining up the aftermarket executives in front of
a firing squad) in the wider market?

Rick "this needs a better solution than looking for old stock" Denney

On Tue, Oct 24, 2017 at 1:06 PM Ken Henderson
wrote:

> Larry,
>
> It's my understanding that the front wheel seal should be proud also -- but
> I never found a spec. for it in a manual. When we did one here recently I
> made a seating tool to set 0.040", and arbitrary amount which seemed
> adequate. Do you know the correct setting?
>
> I THINK I'd already made a tool for the rear seals; I'll have to hunt it up
> and make sure it's set to your 0.060". If not, I'll chuck the disc back in
> the lathe and correct it. What I'm a little concerned about there, though,
> is whether the seal will then clear Manny's reaction arm torque box. So
> many possible "gotcha's"! :-)
>
> Ken H.
>
>
> On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:
>
>> Seal should stand "proud" about .060.
>> --
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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Re: [GMCnet] Rear Wheel Seal [message #325383 is a reply to message #325380] Tue, 24 October 2017 13:01 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Rick, I don't know if you have ever tried to remove a spindle from a bogie
arm, but on some of them, my 20 ton hydraulic press won't do the job. They
are an interference fit in the bogie when new, and 40 years of rust don't
help matters. I have noticed that the shoulder for the seal surface varies
a bit on spindles that I have worked on, so that may be the difference, not
the placement of the seal. .020" shouldn't make much difference. I suspect
that bearing cages vary more than that between brands, and that could lead
to interference between the inner part of the seal and the cage.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Oct 24, 2017 10:15 AM, "Richard Denney" wrote:

> Is the problem with the new seals the depth of the metal ring, or the shape
> of the seal rubber? If the former, installing it proud should make no
> difference. If the latter, would a thin spacer behind the spindle correct
> any issue with the torque box?
>
> Given that this spindle was used on two or three bazillion front ends, is
> there a solution (besides lining up the aftermarket executives in front of
> a firing squad) in the wider market?
>
> Rick "this needs a better solution than looking for old stock" Denney
>
> On Tue, Oct 24, 2017 at 1:06 PM Ken Henderson
> wrote:
>
>> Larry,
>>
>> It's my understanding that the front wheel seal should be proud also --
> but
>> I never found a spec. for it in a manual. When we did one here recently
> I
>> made a seating tool to set 0.040", and arbitrary amount which seemed
>> adequate. Do you know the correct setting?
>>
>> I THINK I'd already made a tool for the rear seals; I'll have to hunt it
> up
>> and make sure it's set to your 0.060". If not, I'll chuck the disc back
> in
>> the lathe and correct it. What I'm a little concerned about there,
> though,
>> is whether the seal will then clear Manny's reaction arm torque box. So
>> many possible "gotcha's"! :-)
>>
>> Ken H.
>>
>>
>> On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:
>>
>>> Seal should stand "proud" about .060.
>>> --
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Rick Denney
> 73 x-Glacier 230 "Jaws"
> Off-list email to rick at rickdenney dot com
> _______________________________________________
> GMCnet mailing list
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Re: [GMCnet] Rear Wheel Seal [message #325396 is a reply to message #325379] Tue, 24 October 2017 19:22 Go to previous messageGo to next message
lqqkatjon is currently offline  lqqkatjon   United States
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Location: St. Cloud, MN
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Senior Member
Ken,

Dave Lenzi was nice enough to sell me the last rear seal installer tool he had on him at our work rally in august. He must of made more to sell to Rob.

Dave also had a front seal installation tool as well. I did not get
One of those.



Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
Re: Rear Wheel Seal [message #325397 is a reply to message #325364] Tue, 24 October 2017 19:22 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
removal isn't hard if you go at it right.
Remove the four bolts and nuts from the spindle
Thread the holes from the rear with (I believe) a 7/16" tap
Make a square steel plate 1/2", slightly larger than the spindle bolt pattern.
Drill four holes aligned with the ones you just threaded.
Drill a 5/8" hole centered on the plate
Weld a 9/16" nut to the hole
thread a 9/16 bolt through the plate and then the nut.
bolt the plate to the rear of the bogie
heat the bogie using a wide pattern torch. Have a beer or coffee while it heats
Use an impact wrench on the centered bolt to drive the spindle out of the bogie.

--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
Re: [GMCnet] Rear Wheel Seal [message #325399 is a reply to message #325397] Tue, 24 October 2017 19:31 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
I have a puller exactly like the one you described. I followed your
procedure up to the point of heating the bogie forging with a torch. That
is a big no no. The shop manual warns against using heat on suspension
components, and so did the General Motors Training Center that I attended.
But, if it is your coach, you assume the risk if you heat stuff. But, I
can't do that on customers coaches.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Oct 24, 2017 5:23 PM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:

> removal isn't hard if you go at it right.
> Remove the four bolts and nuts from the spindle
> Thread the holes from the rear with (I believe) a 7/16" tap
> Make a square steel plate 1/2", slightly larger than the spindle bolt
> pattern.
> Drill four holes aligned with the ones you just threaded.
> Drill a 5/8" hole centered on the plate
> Weld a 9/16" nut to the hole
> thread a 9/16 bolt through the plate and then the nut.
> bolt the plate to the rear of the bogie
> heat the bogie using a wide pattern torch. Have a beer or coffee while it
> heats
> Use an impact wrench on the centered bolt to drive the spindle out of the
> bogie.
>
> --johnny
> --
> 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" - ol Andy, paraphrased
>
>
> _______________________________________________
> 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 Seal [message #325405 is a reply to message #325379] Tue, 24 October 2017 21:47 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
Senior Member
Ken Henderson wrote on Tue, 24 October 2017 12:04
Larry,

It's my understanding that the front wheel seal should be proud also -- but
I never found a spec. for it in a manual. When we did one here recently I
made a seating tool to set 0.040", and arbitrary amount which seemed
adequate. Do you know the correct setting?

I THINK I'd already made a tool for the rear seals; I'll have to hunt it up
and make sure it's set to your 0.060". If not, I'll chuck the disc back in
the lathe and correct it. What I'm a little concerned about there, though,
is whether the seal will then clear Manny's reaction arm torque box. So
many possible "gotcha's"! Smile

Ken H.


On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:

> Seal should stand "proud" about .060.
> --
>
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Ken, I took that ".060 proud" off of the "set" tool that Dave makes. But still cannot remember what the setting is for the front seals. Betch-a Dave knows...


Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: [GMCnet] Rear Wheel Seal [message #325406 is a reply to message #325405] Tue, 24 October 2017 22:07 Go to previous messageGo to next message
Cesar Carrasco is currently offline  Cesar Carrasco   United States
Messages: 30
Registered: September 2017
Location: Riverside, California
Karma: 0
Member
Can anyone send a picture of the seal setting tool and the installed seal?

Please.



Sent from my iPhone

> On Oct 24, 2017, at 7:47 PM, Larry wrote:
>
> Ken Henderson wrote on Tue, 24 October 2017 12:04
>> Larry,
>>
>> It's my understanding that the front wheel seal should be proud also -- but
>> I never found a spec. for it in a manual. When we did one here recently I
>> made a seating tool to set 0.040", and arbitrary amount which seemed
>> adequate. Do you know the correct setting?
>>
>> I THINK I'd already made a tool for the rear seals; I'll have to hunt it up
>> and make sure it's set to your 0.060". If not, I'll chuck the disc back in
>> the lathe and correct it. What I'm a little concerned about there, though,
>> is whether the seal will then clear Manny's reaction arm torque box. So
>> many possible "gotcha's"! :)
>>
>> Ken H.
>>
>>
>>> On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:
>>>
>>> Seal should stand "proud" about .060.
>>> --
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> Ken, I took that ".060 proud" off of the "set" tool that Dave makes. But still cannot remember what the setting is for the front seals. Betch-a Dave
> knows...
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> 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 Seal [message #325407 is a reply to message #325396] Wed, 25 October 2017 01:55 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
Joh,

It would be nice to have the dimensions of both those seal installers
posted somewhere so we could turn our own. They're simple enough that even
I, with only GA Tech Machine Shop 101 in 1956 can make them ('tho' not
pretty like Dave's). :-)

Ken H.


On Tue, Oct 24, 2017 at 8:22 PM, Jon Roche wrote:

> Ken,
>
> Dave Lenzi was nice enough to sell me the last rear seal installer tool he
> had on him at our work rally in august. He must of made more to sell to
> Rob.
>
> Dave also had a front seal installation tool as well. I did not get
> One of those.
>
>
> --
> Jon Roche
> 75 palm beach
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Rear Wheel Seal [message #325408 is a reply to message #325407] Wed, 25 October 2017 04:48 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Ken,

Here you go:

http://www.gmcmhphotos.com/photos/tools/p63852-front-wheel-bearing-seal-tool.html

I'll find the rear seal installer I bought from Dave at Elkhart and add it shortly.

BTW Dave gave me permission to publish this.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken Henderson
Sent: Wednesday, October 25, 2017 1:55 AM
To: GMC Mail List
Subject: Re: [GMCnet] Rear Wheel Seal

Joh,

It would be nice to have the dimensions of both those seal installers
posted somewhere so we could turn our own. They're simple enough that even
I, with only GA Tech Machine Shop 101 in 1956 can make them ('tho' not
pretty like Dave's). :-)

Ken H.




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Unsubscribe or Change List Options:
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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: Rear Wheel Seal [message #325409 is a reply to message #325364] Wed, 25 October 2017 08:33 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
Lemme point out, warm. Not HOT. You could likely run hot water over it for ten or fifteen minutes and get the same result. I just warmed it in hopes of making it easier to drive out.

--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
Re: [GMCnet] Rear Wheel Seal [message #325410 is a reply to message #325408] Wed, 25 October 2017 10:25 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
Senior Member
USAussie wrote on Wed, 25 October 2017 04:48
Ken,

Here you go:

http://www.gmcmhphotos.com/photos/tools/p63852-front-wheel-bearing-seal-tool.html

I'll find the rear seal installer I bought from Dave at Elkhart and add it shortly.

BTW Dave gave me permission to publish this.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken Henderson
Sent: Wednesday, October 25, 2017 1:55 AM
To: GMC Mail List
Subject: Re: [GMCnet] Rear Wheel Seal

Joh,

It would be nice to have the dimensions of both those seal installers
posted somewhere so we could turn our own. They're simple enough that even
I, with only GA Tech Machine Shop 101 in 1956 can make them ('tho' not
pretty like Dave's). Smile

Ken H.




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Unsubscribe or Change List Options:
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So, if my math is correct, looks like the seal on the front stands "proud" about .065?


Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: [GMCnet] Rear Wheel Seal [message #325416 is a reply to message #325410] Wed, 25 October 2017 15:07 Go to previous messageGo to next message
Kosier is currently offline  Kosier   United States
Messages: 834
Registered: February 2008
Karma: 1
Senior Member
Uhhh...... Larry. Would you accept .165" as a better choice?

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "Larry"
Sent: Wednesday, October 25, 2017 11:25 AM
To:
Subject: Re: [GMCnet] Rear Wheel Seal

> USAussie wrote on Wed, 25 October 2017 04:48
>> Ken,
>>
>> Here you go:
>>
>> http://www.gmcmhphotos.com/photos/tools/p63852-front-wheel-bearing-seal-tool.html
>>
>> I'll find the rear seal installer I bought from Dave at Elkhart and add
>> it shortly.
>>
>> BTW Dave gave me permission to publish this.
>>
>> Regards,
>> Rob M.
>> The Pedantic Mechanic
>> Sydney, Australia
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>> USA '77 Kingsley - TZE 267V100808
>>
>> -----Original Message-----
>> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken
>> Henderson
>> Sent: Wednesday, October 25, 2017 1:55 AM
>> To: GMC Mail List
>> Subject: Re: [GMCnet] Rear Wheel Seal
>>
>> Joh,
>>
>> It would be nice to have the dimensions of both those seal installers
>> posted somewhere so we could turn our own. They're simple enough that
>> even
>> I, with only GA Tech Machine Shop 101 in 1956 can make them ('tho' not
>> pretty like Dave's). :)
>>
>> Ken H.
>>
>>
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> So, if my math is correct, looks like the seal on the front stands "proud"
> about .065?
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> 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 Seal [message #325419 is a reply to message #325410] Wed, 25 October 2017 16:18 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
Uh-oh! Looks like I'm in trouble!

Without a seal and hub to examine, it looks like Dave positions the seal
off of the bearing's race. It may be that the end results are similar, but
we approach the problem from different directions. The only one of his
dimensions I match is the 2.900". I believe that's the OD of the rubber
part of the seal, with the metal housing extending outward from there -- to
just beyond Dave's 3.080" diameter.

My tool positions the seal in relation to the knuckle; it's cut arbitrarily
deeply at the 2.900" diameter to clear the rubber (and anything else inside
the seal). A 3.100"-2.900" diameter ridge immediately outside there
catches the metal of the seal Another ridge 0.040" higher than that one
contacts the knuckle's machined surface to set the "proudness" of the
seal's metal.

Unless I'm mistaken, Dave's tool is intended to position the seal correctly
in relation to the bearing, regardless of anything else. Mine depends on
the sanctity of the design and construction of the components and merely
sets the seal at 0.040" proud of the hub.

Guess I'll have to find a seal to check out -- even though I now run the
1-Ton front suspension. :-(

Ken H.


On Wed, Oct 25, 2017 at 11:25 AM, Larry wrote:

> USAussie wrote on Wed, 25 October 2017 04:48
>> Ken,
>>
>> Here you go:
>>
>> http://www.gmcmhphotos.com/photos/tools/p63852-front-
> wheel-bearing-seal-tool.html
>>
>> I'll find the rear seal installer I bought from Dave at Elkhart and add
> it shortly.
>>
>> BTW Dave gave me permission to publish this.
>>
>> Regards,
>> Rob M.
>> The Pedantic Mechanic
>> Sydney, Australia
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>> USA '77 Kingsley - TZE 267V100808
>>
>> -----Original Message-----
>> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken
> Henderson
>> Sent: Wednesday, October 25, 2017 1:55 AM
>> To: GMC Mail List
>> Subject: Re: [GMCnet] Rear Wheel Seal
>>
>> Joh,
>>
>> It would be nice to have the dimensions of both those seal installers
>> posted somewhere so we could turn our own. They're simple enough that
> even
>> I, with only GA Tech Machine Shop 101 in 1956 can make them ('tho' not
>> pretty like Dave's). :)
>>
>> Ken H.
>>
>>
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> So, if my math is correct, looks like the seal on the front stands "proud"
> about .065?
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Rear Wheel Seal [message #325421 is a reply to message #325379] Wed, 25 October 2017 17:23 Go to previous messageGo to previous message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Well, turns out we're circulating a bunch of false information again!
Here's the link I found at Mr. erf's site:

http://gmcmotorhome.info/front.html#rebuilt

Even there, there's a discrepancy with what Dave says here:

http://www.gmcmhphotos.com/photos/data/3221/Dave_Lenzi_s_seal_tool.pdf

My tool sets the seal proud of the knuckle, which everyone seems to agree
is WRONG. Hopefully, we didn't do any damage to the one we (LB & I)
installed recently, because the seal fitted into the knuckle pretty easily;
it's probable that the CV pushed it on into place without damaging it.
Then again, we replaced it because the one removed was badly damaged --
perhaps from being installed proud??? :-(

Ken H.


On Tue, Oct 24, 2017 at 1:04 PM, Ken Henderson
wrote:

> Larry,
>
> It's my understanding that the front wheel seal should be proud also --
> but I never found a spec. for it in a manual. When we did one here
> recently I made a seating tool to set 0.040", and arbitrary amount which
> seemed adequate. Do you know the correct setting?
>
> I THINK I'd already made a tool for the rear seals; I'll have to hunt it
> up and make sure it's set to your 0.060". If not, I'll chuck the disc back
> in the lathe and correct it. What I'm a little concerned about there,
> though, is whether the seal will then clear Manny's reaction arm torque
> box. So many possible "gotcha's"! :-)
>
> Ken H.
>
>
> On Tue, Oct 24, 2017 at 11:55 AM, Larry wrote:
>
>> Seal should stand "proud" about .060.
>> --
>>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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