Home » Public Forums » GMCnet » Powermaster???
| Powermaster??? [message #128342] |
Thu, 02 June 2011 13:22  |
g.winger
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
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Senior Member |
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I've found a powermaster. Need both connector plugs. Also am going to rebuild it.
1. anybody rebuild any MC?
2. Did you hone the bore??
3. ball or flat stones?
4. What grit?
Need an adaptor,,,,might make it out of AL on the lathe, so I need a drawing. Thanks,,,,,PL
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| Re: [GMCnet] Powermaster??? [message #128346 is a reply to message #128342] |
Thu, 02 June 2011 13:55  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Paul,
I've got sketches of the adapter. I've also got a BUNCH of PM
information collected by Ted Stinnett. Do you want all of it or just
the two sketches sent off-net?
Ken H.
On Thu, Jun 2, 2011 at 2:22 PM, Paul Leavitt <leavittpaul@yahoo.com> wrote:
>
>
> I've found a powermaster. Need both connector plugs. Also am going to rebuild it.
> 1. anybody rebuild any MC?
> 2. Did you hone the bore??
> 3. ball or flat stones?
> 4. What grit?
> Need an adaptor,,,,might make it out of AL on the lathe, so I need a drawing. Thanks,,,,,PL
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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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| Re: [GMCnet] Powermaster??? [message #128349 is a reply to message #128346] |
Thu, 02 June 2011 14:30 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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prob should be some discussion of the size of MC that can be used
gene
On Thu, Jun 2, 2011 at 11:55 AM, Ken Henderson <hend4800@bellsouth.net>wrote:
> Paul,
>
> I've got sketches of the adapter. I've also got a BUNCH of PM
> information collected by Ted Stinnett. Do you want all of it or just
> the two sketches sent off-net?
>
> Ken H.
>
>
>
> On Thu, Jun 2, 2011 at 2:22 PM, Paul Leavitt <leavittpaul@yahoo.com>
> wrote:
> >
> >
> > I've found a powermaster. Need both connector plugs. Also am going to
> rebuild it.
> > 1. anybody rebuild any MC?
> > 2. Did you hone the bore??
> > 3. ball or flat stones?
> > 4. What grit?
> > Need an adaptor,,,,might make it out of AL on the lathe, so I need a
> drawing. Thanks,,,,,PL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
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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| Re: Powermaster??? [message #128350 is a reply to message #128342] |
Thu, 02 June 2011 15:03 |
g.winger
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
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Senior Member |
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Ken,,,thanks,,,sketches would be fine. I downloaded some trouble shooting off the Turbo Buick site,,,,leavittpaul@yahoo.com,,,,,PL
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| Re: [GMCnet] Powermaster??? [message #128351 is a reply to message #128342] |
Thu, 02 June 2011 15:05 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Paul, et al,
Hopefully this SkyDrive link will take you to the complete set of
files from Ted Stinnett's PowerMaster library:
https://cid-af8ee0a410d5e357.office.live.com/browse.aspx/PowerMaster%20Brake%20Booster
http://goo.gl/aPbZa
There's a lot of information there which I've made no effort to purge
nor edit in any way. It includes Larry Weidner's writeup on his
installation and lots of other stuff, not all PowerMaster related.
It's about 50 MB, which I why I didn't offer it to Bdub.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
On Thu, Jun 2, 2011 at 2:22 PM, Paul Leavitt <leavittpaul@yahoo.com> wrote:
>
>
> I've found a powermaster. Need both connector plugs. Also am going to rebuild it.
> 1. anybody rebuild any MC?
> 2. Did you hone the bore??
> 3. ball or flat stones?
> 4. What grit?
> Need an adaptor,,,,might make it out of AL on the lathe, so I need a drawing. Thanks,,,,,PL
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Powermaster??? [message #128357 is a reply to message #128351] |
Thu, 02 June 2011 15:52 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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says it is not shared with me
gene
On Thu, Jun 2, 2011 at 1:05 PM, Ken Henderson <hend4800@bellsouth.net>wrote:
> Paul, et al,
>
> Hopefully this SkyDrive link will take you to the complete set of
> files from Ted Stinnett's PowerMaster library:
>
>
> https://cid-af8ee0a410d5e357.office.live.com/browse.aspx/PowerMaster%20Brake%20Booster
>
> http://goo.gl/aPbZa
>
> There's a lot of information there which I've made no effort to purge
> nor edit in any way. It includes Larry Weidner's writeup on his
> installation and lots of other stuff, not all PowerMaster related.
> It's about 50 MB, which I why I didn't offer it to Bdub.
>
> Ken H.
> Americus, GA
> '76 X-Birchaven w/Cad500/Howell EFI+ & EBL
> www.gmcwipersetc.com
>
>
>
> On Thu, Jun 2, 2011 at 2:22 PM, Paul Leavitt <leavittpaul@yahoo.com>
> wrote:
> >
> >
> > I've found a powermaster. Need both connector plugs. Also am going to
> rebuild it.
> > 1. anybody rebuild any MC?
> > 2. Did you hone the bore??
> > 3. ball or flat stones?
> > 4. What grit?
> > Need an adaptor,,,,might make it out of AL on the lathe, so I need a
> drawing. Thanks,,,,,PL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
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:
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| Re: [GMCnet] Powermaster??? [message #128358 is a reply to message #128357] |
Thu, 02 June 2011 16:16 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Oh, didn't I tell you? I made a special entry for you! :-)
I just went and changed the permissions to "Everyone" -- I probably
failed to save the setting before.
Ken H.
On Thu, Jun 2, 2011 at 4:52 PM, Mr.erf ERFisher <mr.erfisher@gmail.com> wrote:
> says it is not shared with me
>
> gene
>
>
> On Thu, Jun 2, 2011 at 1:05 PM, Ken Henderson <hend4800@bellsouth.net>wrote:
>
>> Paul, et al,
>>
>> Hopefully this SkyDrive link will take you to the complete set of
>> files from Ted Stinnett's PowerMaster library:
>>
>>
>> https://cid-af8ee0a410d5e357.office.live.com/browse.aspx/PowerMaster%20Brake%20Booster
>>
>> http://goo.gl/aPbZa
>>
>> There's a lot of information there which I've made no effort to purge
>> nor edit in any way. It includes Larry Weidner's writeup on his
>> installation and lots of other stuff, not all PowerMaster related.
>> It's about 50 MB, which I why I didn't offer it to Bdub.
>>
>> Ken H.
_______________________________________________
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Unsubscribe or Change List Options:
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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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| Re: [GMCnet] Powermaster??? [message #128359 is a reply to message #128358] |
Thu, 02 June 2011 16:21 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Oh sure this was a test :)
FREE WIFI @ Mickey D
On Jun 2, 2011, at 2:16 PM, Ken Henderson <hend4800@bellsouth.net> wrote:
> Oh, didn't I tell you? I made a special entry for you! :-)
>
> I just went and changed the permissions to "Everyone" -- I probably
> failed to save the setting before.
>
> Ken H.
>
> On Thu, Jun 2, 2011 at 4:52 PM, Mr.erf ERFisher <mr.erfisher@gmail.com> wrote:
>> says it is not shared with me
>>
>> gene
>>
>>
>> On Thu, Jun 2, 2011 at 1:05 PM, Ken Henderson <hend4800@bellsouth.net>wrote:
>>
>>> Paul, et al,
>>>
>>> Hopefully this SkyDrive link will take you to the complete set of
>>> files from Ted Stinnett's PowerMaster library:
>>>
>>>
>>> https://cid-af8ee0a410d5e357.office.live.com/browse.aspx/PowerMaster%20Brake%20Booster
>>>
>>> http://goo.gl/aPbZa
>>>
>>> There's a lot of information there which I've made no effort to purge
>>> nor edit in any way. It includes Larry Weidner's writeup on his
>>> installation and lots of other stuff, not all PowerMaster related.
>>> It's about 50 MB, which I why I didn't offer it to Bdub.
>>>
>>> Ken H.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: Powermaster??? [message #128382 is a reply to message #128342] |
Thu, 02 June 2011 18:27 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Being a Turbo Regal guy we are blessed (plagued) with the same system. As far as I know there are no rebuild kits for the rubber parts in the MC section. The GM ones are long gone as far as I know. If anyone knows of a kit on the market please let me know. Usually this section, the braking MC side of the system, doesn't go bad easily so I would see if it is OK before attempting to rebuild it (whatever that word really means). The big failure point is the accumulator ball vessel which fails because people do not change the DOT3 fluid yearly, it attracts water, becomes acidic and attacks the sealant on the diafragm in the accumulator vessle and the HP nitrogen charge leaks out. Then you loose abilty to store charge as an energy source to act as power assist. Also a failure point is the check valve in the system on the assist side and the particulate grit that comes from the rubber breaking down(old fluid as cause once again) prevents the check valve from sealing and the pump runs too often to restore the pressure charge. And just like in a leaky air bag system situation, the pump is rated for intermittant duty only and if it runs and runs it overheats and burns out. Early pressure cycling switchs (black connector) were GM recalled. These were made by GE in the appliance division. The diaphragm seal would leak and the switch would squirt fluid past the seal and often ruin the paint on the car. The service replacement had a multiple diaphragm layer to act to prevent this issue. So if you have a grey connector switch it is the post recall version. The original German pressure vessels had the nut at the thread end of the ball requiring a thin wrench. The newer type had the nut on the outside and yellow warning paint on it. These are no longer available, but a similar ball is available as a service replacement on "rebuilt" Powermasters from Cardone, but as far as I know, not as a stand alone part from them if you try to buy just it. You can get the Cardone accumlator from Dennis Kirban at www.kirbanperformance.com as he arranged a deal to get the accumulators from them as a part. IMHO these are not as good as the originals in terms of lasting, but the only option right now. You might get a couple years out of one of the Cardones we are finding.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Powermaster??? [message #128399 is a reply to message #128342] |
Thu, 02 June 2011 20:31 |
shawnee
Messages: 422
Registered: February 2004
Location: NC
Karma: 0
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Senior Member |
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| g.winger wrote on Thu, 02 June 2011 14:22 |
I've found a powermaster. Need both connector plugs. Also am going to rebuild it.
1. anybody rebuild any MC?
2. Did you hone the bore??
3. ball or flat stones?
4. What grit?
Need an adaptor,,,,might make it out of AL on the lathe, so I need a drawing. Thanks,,,,,PL
|
I have an aluminum adapter that I bought from Art Owens a few years ago and haven't used it. I will sell it for the $30 I paid for it plus shipping if you want it.
Gene Dotson
74 Canyonlands
www.bdub.net/Motorhome_Enhancements New Windows and Aluminum Radiators
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| Re: [GMCnet] Powermaster??? [message #128408 is a reply to message #128382] |
Thu, 02 June 2011 21:30 |
gene1
Messages: 50
Registered: February 2004
Location: Southern California
Karma: 0
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Member |
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Powermaster users
Karp out here in Upland, Ca offers some sort of rebuild service for
Powermaster http://www.resleeve.com/info.htm and Kirban
http://www.kirbanperformance.com/product/317/Brand+New+Complete+VACUUM+BRAKE+BOOSTER+KIT+%237044.html
offers a complete replacement unit, but it looks like it might not fit in
the space available in the GMC.
I have a complete used Powermaster, but don't know if it works, a brake shop
gave it to me in 2006. At that time, Kirban sold me a rebuilt unit for
$399.00. The core unit I sent them had bad seals.
If you look in the men's mall, these are the GM cars that had them
85 to 87 Buick Regal turbo engine cars
86 GM station wagons
Regards, Gene 76 Eleganza North County San Diego
----- Original Message -----
From: "John R. Lebetski" <gransport@aol.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, June 02, 2011 4:27 PM
Subject: Re: [GMCnet] Powermaster???
>
>
> Being a Turbo Regal guy we are blessed (plagued) with the same system. As
> far as I know there are no rebuild kits for the rubber parts in the MC
> section. The GM ones are long gone as far as I know. If anyone knows of a
> kit on the market please let me know. Usually this section, the braking MC
> side of the system, doesn't go bad easily so I would see if it is OK
> before attempting to rebuild it (whatever that word really means). The
> big failure point is the accumulator ball vessel which fails because
> people do not change the DOT3 fluid yearly, it attracts water, becomes
> acidic and attacks the sealant on the diafragm in the accumulator vessle
> and the HP nitrogen charge leaks out. Then you loose abilty to store
> charge as an energy source to act as power assist. Also a failure point is
> the check valve in the system on the assist side and the particulate grit
> that comes from the rubber breaking down(old fluid as cause once again)
> prevents the check valve from sealing and the pump
> runs too often to restore the pressure charge. And just like in a leaky
> air bag system situation, the pump is rated for intermittant duty only and
> if it runs and runs it overheats and burns out. Early pressure cycling
> switchs (black connector) were GM recalled. These were made by GE in the
> appliance division. The diaphragm seal would leak and the switch would
> squirt fluid past the seal and often ruin the paint on the car. The
> service replacement had a multiple diaphragm layer to act to prevent this
> issue. So if you have a grey connector switch it is the post recall
> version. The original German pressure vessels had the nut at the thread
> end of the ball requiring a thin wrench. The newer type had the nut on
> the outside and yellow warning paint on it. These are no longer available,
> but a similar ball is available as a service replacement on "rebuilt"
> Powermasters from Cardone, but as far as I know, not as a stand alone part
> from them if you try to buy just it. You can get
> the Cardone accumlator from Dennis Kirban at www.kirbanperformance.com as
> he arranged a deal to get the accumulators from them as a part. IMHO these
> are not as good as the originals in terms of lasting, but the only option
> right now. You might get a couple years out of one of the Cardones we are
> finding.
> --
> John Lebetski
> Chicago, IL
> 77 Eleganza II
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Powermaster??? [message #128464 is a reply to message #128408] |
Fri, 03 June 2011 10:19 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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| gene1 wrote on Thu, 02 June 2011 21:30 |
Powermaster users
Karp out here in Upland, Ca offers some sort of rebuild service for
Powermaster http://www.resleeve.com/info.htm and Kirban
http://www.kirbanperformance.com/product/317/Brand+New+Complete+VACUUM+BRAKE+BOOSTER+KIT+%237044.html
offers a complete replacement unit, but it looks like it might not fit in
the space available in the GMC.
I have a complete used Powermaster, but don't know if it works, a brake shop
gave it to me in 2006. At that time, Kirban sold me a rebuilt unit for
$399.00. The core unit I sent them had bad seals.
If you look in the men's mall, these are the GM cars that had them
85 to 87 Buick Regal turbo engine cars
86 GM station wagons
Regards, Gene 76 Eleganza North County San Diego
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More specifically, here's a list.
MODELS AFFECTED:
1985 REGAL 3.8L TURBO (ENGINE VIN CODE 9) AND RPO LM9 BRAKES
1986-87 REGAL 3.8L TURBO (ENGINE VIN CODE 7)
1986 LESABRE AND ELECTR ESTATE WAGON
1986 CHEVROLET CAPRICE STATION WAGON
1986 PONTIAC PARISIENNE WAGON
1986 OLDSMOBILE CUSTOM CRUISER STATION WAGON
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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