Home » Public Forums » GMCnet » [GMCnet] PowerLevel
| [GMCnet] PowerLevel [message #83453] |
Fri, 07 May 2010 09:47  |
John Boyer
Messages: 37
Registered: January 2010
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Hello all,
My '73 Glacier has PowerLevel II. Pretty straight-forward and I THINK I got a handle on its operation, but why is it a II?
What happened to PowerLevel I? Was it just a "beta" for the production model? I'm not the first to ask, however I haven't seen the question answered in any of the manuals or here in this venue. Not earth-shaking but a little background doesn't hurt.
John
John& Linda Boyer
'73 Glacier 23'
Ottawa, IL
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| Re: [GMCnet] PowerLevel [message #83460 is a reply to message #83455] |
Fri, 07 May 2010 10:28  |
John Boyer
Messages: 37
Registered: January 2010
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Dennis,
Saw that, and yes it helps. It shows the operation and that's what I've got,
I just don't see the differentiation between the 2 PowerLevel Systems.
Again, maybe a nit, however I'm wondering if PowerLevel II was a standard
feature on '73 Glaciers, or an upgrade from a factory installed PowerLevel
(I). Or was there ever a PowerLevel I? If I have a refinal- rofusgofer on
my coach somewhere that doesn't need to be there, maybe it can be removed.
But I won't know that if I don't at least understand my system.
John
John & Linda Boyer
'73 Glacier 23'
----- Original Message -----
From: <dennisfsexton@aol.com>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, May 07, 2010 10:01 AM
Subject: Re: [GMCnet] PowerLevel
>
> John,
>
> This may be of some help..
>
> http://www.gmcws.org/Tech/dsimmons/air_suspension/air-suspension-system.html
>
>
> Dennis Sexton
> 73 GMC
> Germantown, TN
> USA
>
>
>
> -----Original Message-----
> From: John Boyer <jboyer@mchsi.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, May 7, 2010 9:47 am
> Subject: [GMCnet] PowerLevel
>
>
> Hello all,
> y '73 Glacier has PowerLevel II. Pretty straight-forward and I THINK I got
> a
> andle on its operation, but why is it a II?
> hat happened to PowerLevel I? Was it just a "beta" for the production
> model?
> 'm not the first to ask, however I haven't seen the question answered in
> any of
> he manuals or here in this venue. Not earth-shaking but a little
> background
> oesn't hurt.
> John
> John& Linda Boyer
> 73 Glacier 23'
> ttawa, IL
> ______________________________________________
> MCnet mailing list
> ist Information and Subscription Options:
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| Re: [GMCnet] PowerLevel [message #83465 is a reply to message #83453] |
Fri, 07 May 2010 10:53 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| John Boyer wrote on Fri, 07 May 2010 07:47 |
Hello all,
My '73 Glacier has PowerLevel II. ...
|
What makes you say it is a PowerLevel II?
Just wondering...
I have heard of PowerLevel, Electro-Level and Electro-Level II.
I also understand there was an early version of the air system that didn't have any control valves. Only the height valves in the wheel wells. The "optional" power-level was an included on almost all coaches. I have no idea what this "standard" air system was called.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] PowerLevel [message #83466 is a reply to message #83465] |
Fri, 07 May 2010 11:03 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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John,
Perhaps you have the JR Slaten air valves -- which are marked Power Level II
http://appliedgmc.com/products/full/738.jpg
Dennis Sexton
73 GMC
Germantown, TN
USA
-----Original Message-----
From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, May 7, 2010 10:53 am
Subject: Re: [GMCnet] PowerLevel
John Boyer wrote on Fri, 07 May 2010 07:47
Hello all,
My '73 Glacier has PowerLevel II. ...
hat makes you say it is a PowerLevel II?
Just wondering...
I have heard of PowerLevel, Electro-Level and Electro-Level II.
I also understand there was an early version of the air system that didn't have
ny control valves. Only the height valves in the wheel wells. The "optional"
ower-level was an included on almost all coaches. I have no idea what this
standard" air system was called.
-
ike Miller
73 26' X Painted D.
78 23' Birchaven
illsboro, OR
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MCnet mailing list
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] PowerLevel [message #83467 is a reply to message #83465] |
Fri, 07 May 2010 11:07 |
John Boyer
Messages: 37
Registered: January 2010
Karma: 0
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Mike,
Good point. Says so on the Rotary Controller, but any PO could have changed
that if it was defective. My best guess, tho, is it's original since I've
seen PowerLevel II on others photos of the same year coach...just seems that
these earlier GMC's should have had earliest version. Not so?
John
----- Original Message -----
From: "Mike Miller" <m000035@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, May 07, 2010 10:53 AM
Subject: Re: [GMCnet] PowerLevel
>
>
> John Boyer wrote on Fri, 07 May 2010 07:47
>> Hello all,
>> My '73 Glacier has PowerLevel II. ...
>
>
> What makes you say it is a PowerLevel II?
>
> Just wondering...
>
> I have heard of PowerLevel, Electro-Level and Electro-Level II.
>
> I also understand there was an early version of the air system that didn't
> have any control valves. Only the height valves in the wheel wells. The
> "optional" power-level was an included on almost all coaches. I have no
> idea what this "standard" air system was called.
> --
> Mike Miller
> `73 26' X Painted D.
> `78 23' Birchaven
> Hillsboro, OR
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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| Re: [GMCnet] PowerLevel [message #83469 is a reply to message #83466] |
Fri, 07 May 2010 11:16 |
John Boyer
Messages: 37
Registered: January 2010
Karma: 0
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Member |
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AAH-HAAA! That's what I got. Is there some literature I could peruse to find
out what makes them different? Appreciate your responses, guys.
John
John & Linda Boyer
'73 Glacier 23'
Ottawa, IL
----- Original Message -----
From: <dennisfsexton@aol.com>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, May 07, 2010 11:03 AM
Subject: Re: [GMCnet] PowerLevel
>
> John,
>
> Perhaps you have the JR Slaten air valves -- which are marked Power Level
> II
>
> http://appliedgmc.com/products/full/738.jpg
>
>
> Dennis Sexton
> 73 GMC
> Germantown, TN
> USA
>
>
>
> -----Original Message-----
> From: Mike Miller <m000035@gmail.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, May 7, 2010 10:53 am
> Subject: Re: [GMCnet] PowerLevel
>
>
>
> John Boyer wrote on Fri, 07 May 2010 07:47
> Hello all,
> My '73 Glacier has PowerLevel II. ...
>
> hat makes you say it is a PowerLevel II?
> Just wondering...
> I have heard of PowerLevel, Electro-Level and Electro-Level II.
> I also understand there was an early version of the air system that didn't
> have
> ny control valves. Only the height valves in the wheel wells. The
> "optional"
> ower-level was an included on almost all coaches. I have no idea what
> this
> standard" air system was called.
> -
> ike Miller
> 73 26' X Painted D.
> 78 23' Birchaven
> illsboro, OR
> ______________________________________________
> MCnet mailing list
> ist Information and Subscription Options:
> ttp://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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List Information and Subscription Options:
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| Re: [GMCnet] PowerLevel [message #83473 is a reply to message #83469] |
Fri, 07 May 2010 11:24 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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John,
As I understand, they are a direct replacement -- sturdy brass construction. You could email JR and ask...
Another photo..
http://www.gmcmhphotos.com/photos/showphoto.php?photo=16808&cat=4458
Dennis Sexton
73 GMC -- with original Power Level
Germantown, TN
USA
-----Original Message-----
From: John Boyer <jboyer@mchsi.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, May 7, 2010 11:16 am
Subject: Re: [GMCnet] PowerLevel
AAH-HAAA! That's what I got. Is there some literature I could peruse to find
ut what makes them different? Appreciate your responses, guys.
John
John & Linda Boyer
73 Glacier 23'
ttawa, IL
---- Original Message -----
rom: <dennisfsexton@aol.com>
o: <gmclist@temp.gmcnet.org>
ent: Friday, May 07, 2010 11:03 AM
ubject: Re: [GMCnet] PowerLevel
John,
Perhaps you have the JR Slaten air valves -- which are marked Power Level
II
http://appliedgmc.com/products/full/738.jpg
Dennis Sexton
73 GMC
Germantown, TN
USA
-----Original Message-----
From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, May 7, 2010 10:53 am
Subject: Re: [GMCnet] PowerLevel
John Boyer wrote on Fri, 07 May 2010 07:47
Hello all,
My '73 Glacier has PowerLevel II. ...
hat makes you say it is a PowerLevel II?
Just wondering...
I have heard of PowerLevel, Electro-Level and Electro-Level II.
I also understand there was an early version of the air system that didn't
have
ny control valves. Only the height valves in the wheel wells. The
"optional"
ower-level was an included on almost all coaches. I have no idea what
this
standard" air system was called.
-
ike Miller
73 26' X Painted D.
78 23' Birchaven
illsboro, OR
______________________________________________
MCnet mailing list
ist Information and Subscription Options:
ttp://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
MCnet mailing list
ist Information and Subscription Options:
ttp://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] PowerLevel [message #83484 is a reply to message #83460] |
Fri, 07 May 2010 12:20 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| John Boyer wrote on Fri, 07 May 2010 10:28 |
Dennis,
Saw that, and yes it helps. It shows the operation and that's what I've got,
I just don't see the differentiation between the 2 PowerLevel Systems.
Again, maybe a nit, however I'm wondering if PowerLevel II was a standard
feature on '73 Glaciers, or an upgrade from a factory installed PowerLevel
(I). Or was there ever a PowerLevel I? If I have a refinal- rofusgofer on
my coach somewhere that doesn't need to be there, maybe it can be removed.
But I won't know that if I don't at least understand my system.
John
John & Linda Boyer
'73 Glacier 23'
|
From reading various literature, mostly the operators manual and shop manuals, it appears that the basic 73 and perhaps 74 system was no powerlevel valves. The standard was just the automatic height control valves in the wheel wells. The dash powerlevel valves were an option. I'm not sure when the enhanced system p/l, e/l, e/lII became standard equipment.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] PowerLevel [message #83491 is a reply to message #83484] |
Fri, 07 May 2010 13:30 |
John Boyer
Messages: 37
Registered: January 2010
Karma: 0
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Member |
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Steve,
Makes sense. I guess it's not important until it stops working correctly.
I'm going to E-mail JR anyway and see if there's something I should know for
maintenance reasons. Thanks for the reply.
John
'73 Glacier 23'
----- Original Message -----
From: "Steve Southworth" <midlf@centurytel.net>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, May 07, 2010 12:20 PM
Subject: Re: [GMCnet] PowerLevel
>
>
> John Boyer wrote on Fri, 07 May 2010 10:28
>> Dennis,
>> Saw that, and yes it helps. It shows the operation and that's what I've
>> got,
>> I just don't see the differentiation between the 2 PowerLevel Systems.
>> Again, maybe a nit, however I'm wondering if PowerLevel II was a standard
>> feature on '73 Glaciers, or an upgrade from a factory installed
>> PowerLevel
>> (I). Or was there ever a PowerLevel I? If I have a refinal- rofusgofer
>> on
>> my coach somewhere that doesn't need to be there, maybe it can be
>> removed.
>> But I won't know that if I don't at least understand my system.
>> John
>>
>> John & Linda Boyer
>> '73 Glacier 23'
>
>
> From reading various literature, mostly the operators manual and shop
> manuals, it appears that the basic 73 and perhaps 74 system was no
> powerlevel valves. The standard was just the automatic height control
> valves in the wheel wells. The dash powerlevel valves were an option.
> I'm not sure when the enhanced system p/l, e/l, e/lII became standard
> equipment.
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] PowerLevel [message #83504 is a reply to message #83491] |
Fri, 07 May 2010 15:19 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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John,
IIRC the valves that JR sells are made by a company called Swagelok. They
are as good as they get.
Internally you have a highly polished stainless steel ball encapsulated in
between two pieces of Teflon.
At the pressures we run them in the GMC suspension they are virtually bullet
proof!
So you're wondering; "how does he know this?"
He used them to build Ground Support Equipment at the Johnson Space Center
during Project Apollo!
http://www.swagelok.com/search/product_detail.aspx?part=B-43XVF4
Regards,
Rob Mueller
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 John Boyer
Sent: Saturday, 8 May 2010 4:31 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] PowerLevel
Steve,
Makes sense. I guess it's not important until it stops working correctly.
I'm going to E-mail JR anyway and see if there's something I should know for
maintenance reasons. Thanks for the reply.
John
'73 Glacier 23'
----- Original Message -----
From: "Steve Southworth" <midlf@centurytel.net>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, May 07, 2010 12:20 PM
Subject: Re: [GMCnet] PowerLevel
>
>
> John Boyer wrote on Fri, 07 May 2010 10:28
>> Dennis,
>> Saw that, and yes it helps. It shows the operation and that's what I've
>> got,
>> I just don't see the differentiation between the 2 PowerLevel Systems.
>> Again, maybe a nit, however I'm wondering if PowerLevel II was a standard
>> feature on '73 Glaciers, or an upgrade from a factory installed
>> PowerLevel
>> (I). Or was there ever a PowerLevel I? If I have a refinal- rofusgofer
>> on
>> my coach somewhere that doesn't need to be there, maybe it can be
>> removed.
>> But I won't know that if I don't at least understand my system.
>> John
>>
>> John & Linda Boyer
>> '73 Glacier 23'
>
>
> From reading various literature, mostly the operators manual and shop
> manuals, it appears that the basic 73 and perhaps 74 system was no
> powerlevel valves. The standard was just the automatic height control
> valves in the wheel wells. The dash powerlevel valves were an option.
> I'm not sure when the enhanced system p/l, e/l, e/lII became standard
> equipment.
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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] PowerLevel [message #83550 is a reply to message #83466] |
Fri, 07 May 2010 19:51 |
|
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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Looks like Dennis solved the "mystery" !!! I have seen these valves and never noticed the "II".
Swagelok valves are very good valves. They use them in almost all the semiconductor industry equipment. (Not rocket science... it is more complicated.)
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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